Publications List: Ricardo L. de Queiroz

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Papers published in peer-reviewed Journals

  1. R. L. de Queiroz and P. A. Chou, `` Motion-compensated compression of dynamic voxelized point clouds,'' IEEE Trans. on Image Processing, Vol. 26, No. 8, pp. 3886-3895, Aug. 2017.
  2. R. L. de Queiroz and P. A. Chou, `` Transform coding for point clouds using a Gaussian process model,'' IEEE Trans. on Image Processing, Vol. 26, No. 7, pp. 3507-3517, July 2017.
  3. C. Dorea and R. L. de Queiroz, `` Attention-weighted texture and depth bit-allocation in general-geometry free-viewpoint television,'' IEEE Trans. Circuits and Systems for Video Technology, Vol. 27, No. 5, pp. 1055-1065, May 2017.
  4. X. Chen, J.-N. Hwang, D. Meng, K.-H. Lee, R. de Queiroz, and F.-M. Yeh, `` A quality-of-content (QoC)-based joint source and channel coding for human detections in a mobile surveillance cloud,'' IEEE Trans. Circuits and Systems for Video Technology, Vol. 27, No. 1, pp. 19-31, Jan. 2017.
  5. R. L. de Queiroz and P. A. Chou, `` Compression of 3D point clouds using a region-adaptive hierarchical transform,'' IEEE Trans. on Image Processing, Vol. 25, No. 8, pp. 3497-3956, Aug. 2016.
  6. D. C. Garcia and R. L. de Queiroz, ``Face-spoofing 2D-detection based on Moiré-pattern analysis,'' IEEE Trans. on Information Forensics and Security, Vol. 10, No. 4, pp. 778-786, April 2015.
  7. T. A. Fonseca and R. L. de Queiroz, ``Towards greener computing systems for video compression,'' Journal of Communications and Information Systems, Vol. 30, No. 1, pp. 35-46, March 2015.
  8. E. M. Hung, D. C. Garcia, and R. L. de Queiroz, ``Example-based enhancement of degraded video,'' IEEE Signal Processing Letters, Vol. 21, No. 9, pp. 1140-1144, Sep. 2014.
  9. A. Zaghetto, and R. L. de Queiroz, ``Scanned document compression using a block-based hybrid video codec,'' IEEE Trans. on Image Processing, Vol. 22, No. 6, pp. 2420-2428, June 2013.
  10. C. C. Dorea and R. L. de Queiroz, `` Reconstruction of coarse depth estimates using hierarchical image partitions,'' Multidimensional Systems and Signal Processing, Doi: 10.1007/s11045-012-0191-6, 2012, Vol. 24, no. 2, pp. 379-393, June 2013.
  11. T. G. Scandaroli, R. L. de Queiroz, and D. A. Florencio, `` Attention-weighted rate allocation in free-viewpoint television,'' IEEE Signal Processing Letters, Vol. 20, No. 4, pp. 359-362, April 2013.
  12. E. M. Hung, R. L. de Queiroz, and D. Mukherjee, ``Inter-frame post-processing for intra-coded video,'' Journal of Communication and Information Systems, Vol. 28, No. 1, pp. 1-7, April 2013.
  13. E. M. Hung, R. L. de Queiroz, F. Brandi, K. F. Oliveira, and D. Mukherjee, `` Video super-resolution using codebooks derived from key frames,'' IEEE Trans. Circuits and Systems for Video Technology, Vol. 22, No. 9, pp. 1321-1331, Sep. 2012.
  14. D. C. Garcia, C. C. Dorea, and R. L. de Queiroz, `` Super-resolution for multiview images using depth information,'' IEEE Trans. Circuits and Systems for Video Technology, Vol. 22, No. 9, pp. 1249-1256, Sep. 2012.
  15. A. Zaghetto, and R. L. de Queiroz, `` Pre- and post-processing for multilayer compression of scanned documents,'' Journal of Electronic Imaging, Vol. 20, No. 4, pp. 043005.1-10, DOI:10.1117/1.3644554, Oct.-Dec. 2011.
  16. D. C. Garcia and R. L. de Queiroz, ``Least-squares directional intra prediction in H.264/AVC,'' IEEE Signal Processing Letters,  Vol. 17, No. 10, pp. 831-834, Oct. 2010.
  17. R. L. de Queiroz, ``Reversible color-to-gray mapping using subband domain texturization,'' Pattern Recognition Letters, Vol. 31, No. 4, pp. 269-276, Mar. 2010.
  18. E. Peixoto, R. L. de Queiroz, and D. Mukherjee, ``A Wyner-Ziv video transcoder,'' IEEE Trans. Circuits and Systems for Video Technology, Vol. 20, No. 2, pp. 189-200, Feb. 2010.
  19. B. Macchiavelo, D. Mukherjee and R. L. De Queiroz, `Iterative side-information generation in a mixed resolution Wyner-Ziv framework,'', IEEE Trans. Circuits and Systems for Video Technology, Vol. 19, No. 10, pp. 1409-1423,  Oct. 2009.
  20. T. A. Fonseca and R. L. de Queiroz, ``Complexity reduction techniques for the compression of high-definition video,'', Journal of Communications and Information Systems, Vol. 24, No. 1, pp. 1-10, Apr. 2009.
  21. B. Macchiavello, F. Brandi, E. Peixoto, R. L. de Queiroz, and D Mukherjee, ``Side-information generation for temporally and spatially scalable Wyner-Ziv coders,''   EURASIP Journal of Image and Video Processing, Special Issue on Distributed Video Coding,  vol. 2009, Article ID 171257, 11 pages, 2009.
  22. A. Zaghetto and R. L. de Queiroz,  ``Segmentation-driven compound document coding based on H.264/AVC-INTRA,'',  IEEE Trans. on Image Processing, Vol. 16, No. 7, pp. 1755-1760, July 2007.
  23. R. L. de Queiroz and K. Braun, `` Color to gray and back: color embedding into textured gray images, '' IEEE Trans. on Image Processing, Vol. 15, No 6, pp. 1464-1470, June 2006.
  24. R. Neelamani, R. de Queiroz, Z. Fan, S. Dash and R. Baraniuk, `` JPEG compression history estimation for color images, '' IEEE Trans. on Image Processing, Vol. 15, No 6, pp. 1365-1378, June 2006.
  25.  R. de Queiroz, K. Braun and R. Loce, `` Detecting spatially varying gray component replacement with application in watermarking printed images, '' Journal of Electronic Imaging, Vol. 14, No. 3, pp. 033016.1-033016.9, Sep. 2005.
  26. R. de Queiroz and P. Fleckenstein, `` LUT filters for quantized processing of signals, '' IEEE Trans. on Signal Processing, Vol. 52, pp. 687-693, Mar. 2004.
  27. J. Liang, T. Tran, and R. de Queiroz, `` DCT-based general structure for linear phase paraunitary filter banks, '' IEEE Trans. on Signal Processing, Vol. 51, pp. 1572-1580, June 2003.
  28. Z. Fan and R. de Queiroz, `` Identification of bitmap compression history: JPEG detection and quantizer estimation, ''IEEE Trans. on Image Processing, Vol. 12, pp. 230-235, Feb. 2003.
  29. R. L. de Queiroz, `` Variable complexity DCT approximations driven by an HVQ-based analyzer, ''IEEE Trans. Circuits and Systems for Video Technology, Vol. 12, pp. 1021-1024, Nov. 2002.
  30. H. Man, R. de Queiroz and M. J. T. Smith,  ``3-D subband coding of video for wireless communications,'' IEEE Trans. Circuits and Systems for Video Technology, Vol. 12, pp. 386-397, June 2002.
  31. L. Gan, K. Ma, T. Nguyen. T. Tran, and R. de Queiroz, ``On the completeness of the lattice factorization for linear-phase perfect reconstruction filter banks,'' IEEE Signal Processing Letters, Vol. 9, pp. 133--136, Apr. 2002.
  32. R. L. de Queiroz, `` Approximating lapped transforms through unitary post-processing, '' IEEE Signal Processing Letters, Vol. 8, pp. 307-309, Dec. 2001.
  33. R. Balasubramanian, R. de Queiroz, R. Eschbach and W. Wu, `` Gamut mapping to preserve spatial luminance variations, '' Journal of Imaging Science and Technology, Vol. 45, No. 5, pp. 436-443 Sep./Oct. 2001.
  34. R. de Queiroz, Z. Fan and T. Tran, `` Optimizing block-thresholding segmentation for multi-layer compression of compound images ,'' IEEE Trans. on Image Processing, Vol. 9, pp. 1461-1471, Oct. 2000.
  35. R. de Queiroz, ``Further results on reconstruction methods for processing finite length signals with perfect reconstruction filter banks, '' IEEE Trans. on Signal Processing, Vol. 48, pp. 1814-1816, June 2000.
  36. R. de Queiroz and P. Fleckenstein, `` Very fast JPEG compression using hierarchical vector quantization ,''IEEE Signal Processing Letters, Vol. 7, pp. 97-99, May 2000.
  37. M. Ramos and R. de Queiroz, ``Classified JPEG coding of mixed documents,'' IEEE Trans. on Image Processing, Vol. 9, pp. 716-720, April 2000.
  38. T. D. Tran, R. de Queiroz, and T. Q. Nguyen, ``Linear phase perfect reconstruction filter bank: lattice structure, design, and application in image coding,''IEEE Trans. on Signal Processing, Vol. 48, pp. 133-147, Jan. 2000.
  39. R. de Queiroz, ``On independent color space transformations for the compression of CMYK images'', IEEE Trans. on Image Processing , Vol. 8, pp. 1446-1451, Oct. 1999.
  40. R. L. de Queiroz, ``Processing JPEG-compressed images and documents,'' IEEE Trans. on Image Processing, Vol. 7, pp. 1661-1672, Dec. 1998.
  41. R. L. de Queiroz and R. Eschbach, ``Fast segmentation of JPEG-compressed documents,'' Journal of Electronic Imaging. Vol. 7, pp. 367-377, Apr. 1998.
  42. J. Luo, R. L. de Queiroz and Z. Fan ``A robust technique for image descreening based on the wavelet transform,'' IEEE Trans. on Signal Processing, Vol. 46, pp. 1179-1185, Apr. 1998.
  43. R. de Queiroz, ``On unitary transform approximations,'' IEEE Signal Processing Letters, Vol. 5, pp. 46-47, Feb. 1998.
  44. R. L. de Queiroz, D. A. Florêncio and R. W. Schafer , ``Non-expansive pyramid for image coding using non-linear filter banks,'' IEEE Trans. on Image Processing, Vol. 7, pp. 246-252, Feb. 1998.
  45. R. L. de Queiroz and R. Eschbach, ``Fast downscaled inverses for images compressed with M-channel lapped transforms,'' IEEE Trans. on Image Processing, Vol. 6, pp. 794-807, June, 1997.
  46. R. de Queiroz, C. Choi, Y. Huh, and K. R. Rao, `` Wavelet transforms in a JPEG-like image coder,'' IEEE Trans. on Circuits and Systems for Video Technology, Vol. 7, pp. 419-424, April, 1997.
  47. R. L. de Queiroz and K. R. Rao, ``Variable block size lapped transforms'', IEEE Trans. on Signal Processing, Vol. 44, pp. 3139-3142, Dec. 1996.
  48. R. L. de Queiroz, T. Q. Nguyen, and K. R. Rao, ``GenLOT: generalized linear-phase lapped orthogonal transforms,'' IEEE Trans. on Signal Processing, Vol. 44, pp. 497-507, Apr. 1996.
  49. R. L. de Queiroz and K. R. Rao, ``Reconstruction methods for processing finite-length signals with paraunitary filter banks,'' IEEE Trans. on Signal Processing, Vol. 43, pp. 2407-2410, Oct. 1995.
  50. R. L. de Queiroz and K. R. Rao, ``The extended lapped transform for image coding,'' IEEE Trans. on Image Processing, Vol. 4, pp. 828-832, June, 1995.
  51. R. L. de Queiroz, and K. R. Rao, ``On orthogonal transforms of images using paraunitary filter banks,'' Journal on Visual Communications and Image Representation, Vol. 6, No. 2, pp. 142-153, June 1995.
  52. E. M. Rubino, R. L. de Queiroz, and H. S. Malvar , ``Improved Chen-Smith image coder,'' Journal of Electronic Imaging, Vol. 4, No. 2, pp. 151-160, April 1995.
  53. R. L. de Queiroz, T. Q. Nguyen, and K. R. Rao, ``The generalized lapped orthogonal transforms,'' Electronics Letters, Vol. 30, No. 1, pp. 107-108, Jan. 1994.
  54. R.L. de Queiroz and K. R. Rao, ``Time-varying lapped transforms and wavelet packets,'' IEEE Trans. on Signal Processing, Vol. 41, pp. 3293-3305, Dec. 1993.
  55. R. L. de Queiroz and K. R. Rao, ``A structure for time-varying paraunitary filter banks with perfect reconstruction,'' Electronics Letters, Vol. 29, No. 2, pp 217-218, Jan. 1993.
  56. R. L. de Queiroz and H. S. Malvar, ``On the asymptotic performance of hierarchical transforms,'' IEEE Trans. on Signal Processing, Vol 40, pp. 2620-2622, Oct. 1992.
  57. R. L. de Queiroz and K. R. Rao, ``HVS weighted progressive transmission of images using the LOT,'' Journal of Electronic Imaging, vol. 1, pp. 328-338, July 1992.
Papers published in Conference Proceedings

  1. V. Velisavljevic, C. Dorea, J. Chakareski and R. L. de Queiroz, ``Convexity characterization of virtual view reconstruction error in multi-view imaging,'' Proc. IEEE International Workshop on Multimedia Signal Processing, MMSP, Luton, England, Oct. 2017.
  2. G. L. de Oliveira, E. Peixoto, and R. L. de Queiroz, ``,Motion estimation with multiple matching criteria'' Proc. IEEE International Workshop on Multimedia Signal Processing, MMSP, Luton, England, Oct. 2017.
  3. D. C. Garcia and R. L. de Queiroz, ``Context-based octree coding for point-cloud video,'' Proc. IEEE Intl. Conf. Image Processing, ICIP, Beijing, China, Sept. 2017.
  4. R. L. de Queiroz and P. A. Chou, ``Motion-compensated compression of point cloud video,'' Proc. IEEE Intl. Conf. Image Processing, ICIP, Beijing, China, Sept. 2017.
  5. R. L. de Queiroz, D. C. Garcia. L. E. Fonseca, E. M. Hung, M. P. Rocha, ``Scalable compression of multibeam echo sounder data, Proc. IEEE/OES Acoustics in Underwater Geosciences Symp. , Rio Acoustics 2017, Rio de Janeiro, Brazil, July 2017.
  6. D. C. Garcia, R. L. de Queiroz, M. P. Rocha and L. E. Fonseca, ``Automatic compensation for seafloor slope and depth in post-processing recovery of seismic amplitudes, Proc. IEEE/OES Acoustics in Underwater Geosciences Symp. , Rio Acoustics 2017, Rio de Janeiro, Brazil, July 2017.
  7. M. P. ROcha, G. N. Turquetti, L. E. N. Fonseca, M. Ianniruberto, R. L. de Queiroz, and D. C. Garcia, ``Controlled experiment to assess the use of watercolumn multibeam data in the detection of gas seepages in shallow waters, Proc. IEEE/OES Acoustics in Underwater Geosciences Symp. , Rio Acoustics 2017, Rio de Janeiro, Brazil, July 2017.
  8. P. A. Chou and R. de Queiroz, ``Gaussian process transforms,'' Proc. IEEE Intl. Conf. Image Processing, ICIP, Phoeniz, AZ, USA, Sept. 2016.
  9. C. Dorea and R. de Queiroz, ``Attention-weighted depth-map rate allocation in free-viewpoint television,'' Proc. IEEE Intl. Conf. Image Processing, ICIP, Phoeniz, AZ, USA, Sept. 2016.
  10. X. Chen, J.-N. Hwang, K.-H. Lee, R. L. de Queiroz, `` Quality-of-content (QoC)-driven rate allocation for video analysis in mobile surveillance networks '' Proc. IEEE Multimedia Signal Processing Workshop, MMSP, Xiamen, China, Oct. 2015.
  11. D. C. Garcia and R. L. de Queiroz, ``Evaluating the effects of image compression in Moire-pattern-based face-spoofing detection,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Quebec City, Canada, Sep. 2015.
  12. R. U. Ferreira, E. M. Hung and R. L. de Queiroz, `` Clustering of matched features and gradient matching for mixed-resolution video super-resolution'' Proc. IEEE Intl. Symp. on Circuits and Systems, ISCAS, Lisbon, Portugal, May 2015.
  13. E. Peixoto, B. Macchiavello, R. L. de Queiroz, and E. M. Hung, ``Fast H.264/AVC to HEVC transcoding based on machine learning, Proc. Intl. Telecommunications Symposium, ITS, São Paulo, Brazil, Sep. 2014.
  14. C. Dorea and R. L. de Queiroz, ``General rate allocation in free-viewpoint television,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Paris, France, Oct. 2014.
  15. E. Peixoto, B. Macchiavello, E. M. Hung, and R. L. de Queiroz, ``A fast HEVC transcoder based on content modelling and early termination,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Paris, France, Oct. 2014.
  16. C. Dorea, D. C. Garcia, and R. L. de Queiroz, `` Super-resolução para síntese de vistas em ambientes de resolução mista,'' Anais Simpósio Brasileiro de Telecomunicações, Fortaleza, CE, Brasil, DOI: 10.14209/sbrt.2013.167, Sep. 2013.
  17. D. C. Garcia, C. Dorea, and R. L. de Queiroz, ``Depth-map super-resolution for asymmetric stereo images,'' Proc. IEEE Intl. Conf. on Acoustics Speech and Signal Processing, ICASSP, Vancouver, BC, Canada, May. 2013.
  18. T. A. Fonseca, and R. L. de Queiroz, ``Energy-constrained real-time H.264/AVC video coding,'' Proc. IEEE Intl. Conf. on Acoustics Speech and Signal Processing, ICASSP, Vancouver, BC, Canada, May. 2013.
  19. A. Zaghetto, B. Macchiavello, and R. L. de Queiroz, ``HEVC-based scanned document compression,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Orlando, FL, USA, Sep. 2012.
  20. R. U. Ferreira, E. M. Hung, and R. L. de Queiroz, ``, Video super-resolution based on local invariant features matching'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Orlando, FL, USA, Sep. 2012.
  21. T. A. Fonseca, and R. L. de Queiroz, `` Codificação de vídeo H.264/AVC em tempo real e restrita por energia,'' Anais Simpósio Brasileiro de Telecomunicações, Brasilia, DF, Brasil, Sep. 2012.
  22. T. Scandaroli, and R. L. de Queiroz, `` Vídeo com ponto de vista livre usando decodificador em rede,'' Anais Simpósio Brasileiro de Telecomunicações, Brasilia, DF, Brasil, Sep. 2012.
  23. D. C. Garcia, T. A. Fonseca, and R. L. de Queiroz, ``Video compression complexity reduction with adaptive down-sampling,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Brussels, Belgium, Sep. 2011.
  24. E. M. Hung, D. C. Garcia, and R. L. de Queiroz, ``Transform-domain semi-super-resolution,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Brussels, Belgium, Sep. 2011.
  25. C. C. Dorea and R. L. de Queiroz, ``Depth map reconstruction using color-based region merging,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Brussels, Belgium, Sep. 2011.
  26. B. Macchiavello, A. Zaghetto, and R. L. de Queiroz, `` Propagação de qualidade para sequências de vídeo de baixo movimento na codificação H.264,'' Anais Simpósio Brasileiro de Telecomunicações, Curitiba, PR, Brasil, Sep. 2011.
  27. E. M. Hung, C. Dorea, D. C. Garcia, and R. L. de Queiroz `` Super-resolução¸no domínio da transformada para imagens de múltiplas vistas e resolução mista,'' Anais Simpósio Brasileiro de Telecomunicações, Curitiba, PR, Brasil, Sep. 2011.
  28. E. M. Hung, C. C. Dorea, D. C. Garcia and R. L. de Queiroz, ``Transform-domain super resolution for multiview images using depth information,'' European Signal Processing Conference, EUSIPCO, Barcelona, Spain, Aug. 2011.
  29. T. A. Fonseca, and R. L. de Queiroz, `` Complexity-constrained rate-distortion optimization for H.264/AVC video coding ,'' Proc.IEEE Intl. Symp. on Circuits and Systems, ISCAS, Rio de Janeiro, Brazil, pp. 2909-2912, May 2011.
  30. D. C. Garcia, C. C. Dorea, and  R. L. de Queiroz, ``Super-resolution for multiview images using depth information,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Hong Kong, China, pp. 1793-1796, Sep. 2010.
  31. B. Macchiavello, E. M. Hung,  R. L. de Queiroz,  and D. Mukherjee, ``Mixed-resolution ditributed video codec without motion estimation at the encoder,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Hong Kong, China, pp. 3725-3728, Sep. 2010.
  32. A. Zaghetto, and  R. L. de Queiroz, ``High-quality scanned book compression using pattern matching,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Hong Kong, China, pp. 2165-2168, Sep. 2010.
  33. T. A. Fonseca, R. L. de Queiroz, and D. Mukherjee, ``Complexity-scalable H.264/AVC in an IPP-based video encoder,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Hong Kong, China, pp. 2885-2888, Sep. 2010.
  34. C. C. Dorea, and  R. L. de Queiroz,  ``Depth map discontinuity correction for 3D video systems,''  Proc. of Intl. Telecom. Symp., Manaus, Brazil, Sep. 2010.
  35. E. M. Hung and  R. L. de Queiroz,  ``Blocking-effect reduction in a reversed-complexity video codec based on a mixed-quality framework,''  Proc. of Intl. Telecom. Symp., Manaus, Brazil, Sep. 2010.
  36. D. C. Garcia, C. C. Dorea, B. E. Macchiavello,  R. L. de Queiroz and D. Mukherjee,  ``Mixed resolution framework for distributed multiview coding,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Multimedia on Mobile Devices, San Jose, CA,  USA,  SPIE Vol. 7542, Jan. 2010.
  37. K. F. Oliveira, F. Brandi, E. M. Hung, R. L. de Queiroz and D. Mukherjee, ``Bipredictive video super-resolution using key-frames,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Visual Information Processing and Communication, San Jose, CA,  USA,  SPIE Vol. 7543, Jan. 2010.
  38. A. Zaghetto and R. L. de Queiroz,  ``Improved layer processing for MRC compression of scanned documents,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Cairo, Egypt, Nov. 2009.
  39. E. Peixoto, R. L. de Queiroz, and D. Mukherjee, ``Mapping motion vectors for a Wyner-Ziv video transcoder'', Proc. IEEE Intl. Conf. on Image Processing, ICIP, Cairo, Egypt, Nov. 2009.
  40. T. A. Fonseca and R. L. de Queiroz,, ``Macroblock sampling and mode raning for complexity scalability in mobile H.264 video coding,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Cairo, Egypt, Nov. 2009.
  41. R. Ferreira, E. Hung, R. L. de Queiroz, and D. Mukherjee, ``Efficiency improvements for a geometric-partition-based video coder,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Cairo, Egypt, Nov. 2009.
  42. B. Macchiavelo,  R. L. de Queiroz, and D. Mukherjee,  ``Distributed video codec with complexity scalability based on mixed resolution coding,'' Proc. Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI 2009, Rio de Janeiro, RJ, Brazil, Oct. 2009.
  43. A. Zaghetto, and R. de Queiroz, ``Document Compression Using H.264/AVC,'' Proc. Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI 2009, Rio de Janeiro, RJ, Brazil, Oct. 2009.
  44. K. F. Oliveira. F. Brandi, E. M. Hung, R. L. de Queiroz and D. Mukherjee,  ``Super-resolução de video usando quadros-chave,'' Anais Simpósio Brasileiro de Telecomunicações, Blumenau, PR, Brazil, Sep. 2009.
  45. E. M. Hung, and R. L. de Queiroz,  ``Codificação de vídeo com complexidade reversa utilizando qualidade mista,'' Anais Simpósio Brasileiro de Telecomunicações, Blumenau, PR, Brazil, Sep. 2009.
  46. A. Zaghetto and R. L. de Queiroz,  ``Compressão de documentos digitalizados baseada no casamento de padrões utilizando o H.264/AVC,'' Anais Simpósio Brasileiro de Telecomunicações, Blumenau, PR, Brazil, Sep. 2009.
  47. D. C. Garcia, C. C. Dorea, B. Macchiavello, R. L. de Queiroz, and D. Mukherjee, ``Arquitetura de resolução mista para codificação distribuída de sequências multiview,'' Anais Simpósio Brasileiro de Telecomunicações, Blumenau, PR, Brazil, Sep. 2009.
  48. T. A. Fonseca and R. L. de Queiroz, ``Complexity-constrained H.264 HD video coding through mode ranking,''  Proc. 27th Picture Coding Symposium, PCS 2009,  Chicago, IL, USA, May 2009.
  49. A. Zaghetto, R. L. de Queiroz and D. Mukherjee, ``MRC compression of compound documents using threshold segmentation, iterative data-filling and H.264/AVC-INTRA,'', Indian Conference on Computer Vision, Graphics and Image Processing, Bhubaneswar, India, Dec. 2008.
  50. A. Zaghetto and R. L. de Queiroz,  ``Iterative pre- and post-processing for MRC layers of scanned documents''  Proc. IEEE Intl. Conf. on Image Processing, ICIP, San Diego, CA, USA,  Oct. 2008.
  51. B. Macchiavelo,  R. L. de Queiroz, and D. Mukherjee,  ``Parameter estimation for an H.264-based distributed video coder,''  Proc. IEEE Intl. Conf. on Image Processing, ICIP, San Diego, CA, USA,  Oct. 2008.
  52. F. Brandi, R. L. de Queiroz, and D. Mukherjee, ``Super-resolution of video using key-frames and motion estimation,''  Proc. IEEE Intl. Conf. on Image Processing, ICIP, San Diego, CA, USA,  Oct. 2008.
  53. R. G. Oliveira and R. L. de Queiroz, ``Intra-prediction versus wavelets and lapped transforms in an H.264/AVC coder,'' Proc. IEEE Intl. Conference on Image Processing, ICIP, San Diego, CA, USA, Oct. 2008.
  54. E. Peixoto, R. L. de Queiroz, and D. Mukherjee, ``On side-information generation for Wyner-Ziv video coding,'' Simpósio Brasileiro de Telecomunicações, Rio de Janeiro, RJ, Brazil, Sep. 2008.
  55. B. Macchiavelo,  F. Brandi, R. L. de Queiroz, and D. Mukherjee, ``Super-resolution applied to distributed video coding with spatial scalability,'' Simpósio Brasileiro de Telecomunicações, Rio de Janeiro, RJ, Brazil, Sep. 2008.
  56. A. Zaghetto, and R. L. de Queiroz, ``Segmentacão por limiarizacão de macroblocos e data-filling iterativo para compressão de documentos compostos utilizando o H.264,'' Simpósio Brasileiro de Telecomunicações, Rio de Janeiro, RJ, Brazil, Sep. 2008.
  57. T. A. Fonseca, and R. L. de Queiroz, ``Complexity reduction techniques applied to the compression of high definition sequences in digital TV'' Simpósio Brasileiro de Telecomunicações, Rio de Janeiro, RJ, Brazil, Sep. 2008.
  58. F. Brandi, R. L. de Queiroz, and D. Mukherjee, ``Super resolution of video using key frames,'' Proc. IEEE Intl. Symp. on Circuits and Systems, Seattle, USA,  May 2008.
  59. E. Peixoto, R. L. de Queiroz, and D. Mukherjee, ``Mobile video communications using a Wyner-Ziv transcoder,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Visual Communications and Image Processing, San Jose, CA,  USA,  Jan. 2008.
  60. B. Macchiavelo,  D. Mukherjee, and R. L. de Queiroz, ``A statistical model for a mixed resolution Wyner-Ziv framework,'' Proc. 26th Picture Coding Symposium , PCS 2007, Lisbon, Portugal, Nov. 2007.
  61. B. Macchiavelo,  R. L. de Queiroz, and D. Mukherjee,  ``Motion based side information generation for a scalable Wyner-Ziv video coder,''  Proc. IEEE Intl. Conf. on Image Processing, ICIP, San Antonio, TX, USA,  Sep. 2007.
  62. A. Zaghetto and  R. L. de Queiroz, ``Using H.264/AVC-Intra for segmentation-driven compound document coding,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, San Antonio, TX, USA,  Sep. 2007.
  63. R. L. de Queiroz, ``Improved reversible mapping from color to gray,'' Proc. Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI, Belo Horizonte, MG, Brazil, Oct. 2007.
  64. T. A. Fonseca, Y. Liu and R. L. de Queiroz, `` Open-loop prediction in H.264/AVC for high definition sequences,'' Simpósio Brasileiro de Telecomunicações, Recife, PE, Brazil, Sep. 2007.
  65. R. G. de Oliveira, and R. L. de Queiroz, ``Lapped transforms in a JPEG 2000 coder,'' Simpósio Brasileiro de Telecomunicações, Recife, PE, Brazil, Sep. 2007.
  66. B. Macchiavello, E. Peixoto, and R. L. de Queiroz, `` A video coding framework with spatial scalability,'' Simpósio Brasileiro de Telecomunicações, Recife, PE, Brazil, Sep. 2007.
  67. A. Zaghetto and R. L. de Queiroz, `` MRC compression of compound documents using H.246/AVC-I,'' Simpósio Brasileiro de Telecomunicações, Recife, PE, Brazil, Sep. 2007.
  68. K. F. Oliveira, R. L. de Queiroz, F. A. Nascimento, P. A. Berger, ``Método reversível para embarcar cores em imagens monocromáticas baseado em transformadas senoidais, (Reversible method to embed color into monochrome images through cosine transforms)'' in portuguese, Congresso de Métodos Numéricos em Engenharia, Porto, Portugal, Julho 2007.
  69. D. Mukherjee, B. Macchiavelo,  and R. L. de Queiroz, ``A simple reversed-complexity Wyner-Ziv video coding mode based on a spatial reduction framework,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Visual Communications and Image Processing, San Jose, CA,  USA,  SPIE Vol. 6508, pp. 65081Y1-65081Y12, Jan. 2007.
  70. R. L. de Queiroz, ``Pre-processing of MRC layers of scanned images,''  Proc. IEEE Intl. Conf. on Image Processing, ICIP, Atlanta, USA, pp. 3093-3096, , Oct. 2006.
  71. D. Dias and R. L. de Queiroz, ``A model for the electronic representation of bank checks,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Atlanta, USA, pp. 461-464, Oct. 2006.
  72. E. M. Hung, R. L. de Queiroz and D. Mukherjee, ``On macroblock partition for motion compensation,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Atlanta, USA, pp. 1697-1700, Oct. 2006.
  73. R. L. de Queiroz, R. S. Ortis, A. Zaghetto, and T. A. Fonseca, ``Fringe benefits of the H.264/AVC´´Proc. of Intl. Telecom. Symp., Fortaleza, Brazil, pp. 208-212, Sep. 2006.
  74. R. L. de Queiroz and K. Braun, ``Color to black-and-white and back: embedding color in grayscale images,'' Proc. IS&T/SID 13th Color Imaging Conference,  Scottsdale, AZ, USA,  Nov. 2005. 
  75. R. de Queiroz,  and K. Braun, ´´Color embedding into gray images,``, Proc. IEEE Intl. Conf. on Image Processing, ICIP, Genova, Italy, Vol. III, pp. 944-947, 2005.
  76. R. de Queiroz, K. Braun, and R. Loce, ´´Spatially varying gray component replacement for image watermarking,``, Proc. IEEE Intl. Conf. on Image Processing, ICIP, Genova, Italy, Vol. I, pp. 385-388, 2005.
  77. S. Pamboukian, H. Y. Kim and R. de Queiroz, ´´Watermarking JBIG2 for image authentication,``,  Proc. IEEE Intl. Conf. on Image Processing, ICIP, Genova, Italy, Vol. II, pp. 1078-1081,  2005.
  78. H. Y. Kim and R. L. de Queiroz, `` A public-key authentication watermarking for binary images, '' Proc. IEEE Intl. Conf. on Image Processing, ICIP, pp. 3459-3462, Singapore, 2004.
  79. H. Y. Kim and R. L. de Queiroz, `` Alteration-locating authentication watermarking for binary images, '' Intl. Workshop Digital Watermarking, Korea, 2004. Also as Lecture Notes in Computer Sciences, Vol. 3304, pp. 125-136, Springer-Verlag, GmbH, 2005.
  80. R. Neelamani, R. de Queiroz, Z. Fan and R. Baraniuk `` JPEG compression history estimation for color images, '' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Barcelona, Spain, 2003.
  81. H. Y. Kim and R. de Queiroz, `` Inverse halftoning by decision tree learning,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Barcelona, Spain, 2003.
  82. R. Narasimha, A. Savakis, R. M. Rao, and R. L. de Queiroz, ``Key  frame extractors using MPEG-7 motion descriptors,'' Conference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers, 2003, Volume 2, Page(s):1575-1579, Nov. 2003.
  83. R. de Queiroz, `` Improved transforms for the compression of color and multispectral images,''Proc. IEEE Intl. Conf. on Image Processing, ICIP, Rochester, NY, 2002.
  84. R. de Queiroz, `` Reduced DCT approximation for low bit rate coding,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Rochester, NY, 2002.
  85. R. de Queiroz, `` DCT approximation for low bit rate coding using a conditional transform, ''Proc. IEEE Intl. Conf. on Image Processing, ICIP, Rochester, NY, 2002.
  86. H. Man, R. de Queiroz, amd M. J. T. Smith `` A new 3-D subband video coding technique, '' Proc. IEEE Intl. Conf. on Acoustics Speech and Signal Processing, (ICASSP), Orlando, FL, 2002.
  87. R. Neelamani, R. Baraniuk, and R. de Queiroz, `` Compression color space estimation of JPEG images using lattice basis reduction,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Greece, pp. 890-893, 2001.
  88. R. de Queiroz and P. Fleckenstein, `` Signal processing using LUT filters based on hierarchical VQ, '' Proc. of IEEE Intl. Conf. on Acoust. Speech and Signal Processing, (ICASSP), Salt Lake City, UT, SPTM-P1, May 2001.
  89. R. Von Borries, R. de Queiroz and C. S. Burrus, `` On filter banks with rational oversampling, '' Proc. of IEEE Intl. Conf. on Acoust. Speech and Signal Processing, (ICASSP), Salt Lake City, UT, SPTM-L2, May 2001.
  90. R. Balasubramanian, R. de Queiroz, R. Eschbach, and W. Wu, `` Gamut mapping to preserve spatial luminance variations, '' Proc. IS&T/SID's 8th Color Imaging Conf., Scottsdale, AZ, pp. 122--128, Oct. 2000.
  91. R. de Queiroz, Z. Fan and T. Tran, `` Optimizing block-thresholding segmentation for MRC compression,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Vancouver, Canada, Vol. II, pp. 597-600, Sep. 2000.
  92. R. de Queiroz, `` On data-filling algorithms for MRC layers,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Vancouver, Canada, Vol. II, pp. 586-589, Sep. 2000.
  93. Z. Fan and R. de Queiroz, `` Maximum likelihood estimation of JPEG quantization table in the identification of JPEG compression history,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Vancouver, Canada, Vol. I, pp. 948-951, Sep. 2000.
  94. R. de Queiroz and P. Fleckenstein, `` Fast JPEG encoding for color fax using HVQ,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Image and Video Communications and Processing, San Jose, CA, Jan. 2000.
  95. R. de Queiroz and T. Tran, `` A fast lapped transform for image coding,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Image and Video Communications and Processing, San Jose, CA, Jan. 2000.
  96. R. de Queiroz, `` A color transformation for the compression of CMYK images,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Color Imaging, San Jose, CA, Jan. 2000.
  97. R. de Queiroz, `` Compression of compound documents,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Kobe, Japan, 25PS1.1,   Oct. 1999.
  98. M. Ramos and R. L. de Queiroz, Adaptive rate-distortion-based thresholding: application in JPEG  compression of mixed images for printing,''  Proc. of Intl. Conf. Acoust. Speech and Signal Proc. Phoenix, AZ, Vol. 5, # 2008, Mar. 1999.
  99. R. de Queiroz, ``Wavelet coding suited for printer raster images,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Color Imaging, San Jose, CA, SPIE Vol. 3648, pp. 336-343, Feb. 1999.
  100. R. de Queiroz and G. Bozdagi, ``Very fast scene cut detection for MPEG compressed video,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Storage and Retrieval For Image and Video Databases, San Jose, CA, SPIE Vol. 3656, pp. 699-709, Feb. 1999.
  101.  R. L. de Queiroz, R. Buckley  and M. Xu, ``Mixed raster content (MRC) model for compound image compression,'' Proc. IS&T/SPIE Symp. on Electronic Imaging, Visual Communications and Image Processing, San Jose, CA,  SPIE Vol. 3653, pp. 1106-1117, Feb. 1999.
  102. T. D. Tran, R. L. de Queiroz, and T. Q. Nguyen, ``The variable-length generalized lapped biorthogonal transform,'' Proc. IEEE Intl. Conf. on Image Processing, ICIP, Chicago IL,  Vol. III, pp. 697-701, 1998.
  103. R. de Queiroz, ``Uniform filter banks with non-uniform bands,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, Seattle, WA, Vol. III, pp. 1341-1344, May 1998.
  104. T. Tran, R. de Queiroz and T. Nguyen, `` The generalized lapped biorthogonal transform,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, Seattle, WA, Vol. III, pp. 1441-1444, May 1998.
  105. R. de Queiroz, R. Balasubramanian, Z. Fan, ``Multiresolution color correction,'' Proc. IS&T/SPIE Symp. on Electronic Imaging: Science and Technology, Color Imaging, San Jose, CA, Feb. 1998.
  106. R. de Queiroz, ``Processing JPEG-compressed images,'' in Proc. of IEEE Intl. Conf. on Image Processing, ICIP, Santa Barbara, CA, Vol. II, pp. 334-338, Oct. 1997.
  107. R. de Queiroz and R. Eschbach, ``Segmentation of compressed documents,'' in Proc. of IEEE Intl. Conf. on Image Processing, ICIP, Santa Barbara, CA, Vol. III, pp. 70-74, Oct. 1997.
  108. R. Balasubramanian, R. Klassen, and R. de Queiroz, ``Color correcting JPEG Compressed Images,'' Proc. IS&T/SID's 5th Color Imaging Conf., Scottsdale, AZ, pp. 83--87, Nov. 1997.
  109. R. L. de Queiroz and R. Eschbach, ``Downscaled inverses for M-channel lapped transforms,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, Munich, Germany, Vol. III, pp. 2465-2468, 1997.
  110. J. Luo, R. L. de Queiroz and Z. Fan ``Universal descreening technique via wavelet analysis,'' Proc. IS&T/SPIE Symp. on Electronic Imaging: Science and Technology, Color Imaging, San Jose, CA, SPIE Vol. 3018, pp. 18-29, Feb. 1997.
  111. R. L. de Queiroz and D. F. Florencio, ``A pyramidal coder using a non-linear filter bank,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, Atlanta, GA, pp. 1570-1573, May 1996.
  112. R. L. de Queiroz and K. R. Rao, ``Variable block size lapped transforms'', Proc. of IEEE Intl. Conf. on Image Processing, ICIP, Washington, DC, vol. I, pp. 290-293, Oct. 1995.
  113. R. L. de Queiroz and D. A. Florêncio, ``A non-linear filter bank for image coding'',Proc. of Midwest Symp. on Circuits and Systems, Rio de Janeiro, Brazil, pp. 1115-1118, Aug. 1995.
  114. R. L. de Queiroz and K. R. Rao, ``Optimal orthogonal boundary filter banks,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, Detroit, MI, pp. 1296-1299, May 1995.
  115. R. L. de Queiroz and K. R. Rao, ``On symmetric extensions, orthogonal transforms of images, and paraunitary filter banks,'' Proc. of IEEE Intl. Conf. on Image Processing, Austin, TX, vol. I, pp. 835-839, 1994.
  116. R. L. de Queiroz, T. Q. Nguyen, and K. R. Rao, ``The class of GENLOTs: generalized linear-phase lapped orthogonal transforms,'' IEEE Intl. Symp. Circuits and Systems, vol. 2, pp. 277-280, 1994.
  117. R. de Queiroz, C. Choi, Y. Huh, J. Hwang, and K. R. Rao, ``Wavelet transforms in a JPEG-like image coder,'' Proc. SPIE Conf. on Visual Communication and Image Processing, Chicago, IL, SPIE Vol. 2308, pp. 1662-1673, 1994.
  118. Y. Huh, J. Hwang, R. de Queiroz, C. Choi, and K. R. Rao, ``Classified VQ image coding using wavelet transforms,'' Proc. SPIE Conf. on Visual Communication and Image Processing, Chicago, IL, SPIE Vol. 2308, pp. 207-218 , 1994.
  119. R. L. de Queiroz and K. R. Rao, ``Modulated lapped transforms for image coding,'' SPIE Conf. on Video Compression for Personal Computers, San Jose, CA, SPIE Vol. 2187, pp. 80-91, Feb. 1994.
  120. R. L. de Queiroz and K. R. Rao, ``On adaptive wavelet packets,'' Proc. of IEEE Intl. Symp. on Circuits and Systems, Chicago, IL, Vol. I, pp 511-514, May 1993.
  121. E. M. Rubino, H. S. Malvar and R. L. de Queiroz, ``Improved Chen-Smith image coder,'' Proc. of IEEE Intl. Symp. Circuits and Systems, Chicago, IL, Vol. I, pp. 267-270, May 1993.
  122. R. L. de Queiroz and K. R. Rao, ``HVS weighted progressive transmission of images using the LOT,'' Proc. of IEEE Intl. Conf. Communications, Geneva, Switzerland, May 1993.
  123. R.L. de Queiroz and K. R. Rao, ``Adaptive extended lapped transforms,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, Minneapolis, MN, Vol. III, pp 217-220, Apr. 1993.
  124. R. L. de Queiroz, `` Subband processing of finite length signals without border distortions,'' Proc. of IEEE Intl. Conf. on Acoust., Speech, Signal Processing, San Francisco, CA, vol. IV, pp. 613-616, 1992.
  125. R. L. de Queiroz, ``Chooosing a subband system for image coding through a cost-compaction criteria,'' in portuguese, Proc. of Simposio Brasileiro de Telecomunicacoes, Sao Paulo, Brazil, pp. 2.3.11-2.3.15, Sep. 1991.
  126. R. L. de Queiroz and J. T. Yabu-Uti, ``On a hybrid predictive-interpolative scheme for reducing processing speed in DPCM TV CODECs,'' Proc. of European Signal Processing Conf., Barcelona, Spain, Vol. II, pp. 797-780, Sep. 1990.
  127. R. L. de Queiroz and J. T. Yabu-Uti, ``Hierarchical image coding with the pyramid DPCM,'' Proc. of Intl. Telecom. Symp. Rio de Janeiro, Brazil, pp. 558-562, Sep. 1990.
  128. R. L. de Queiroz and J. T. Yabu-Uti, ``Image transmission with pyramid dpcm coding,'' in portuguese, Proc. of Simposio Brasileiro de Automacao Integrada, Curitiba, Brazil, June 1990.
  129. R. L. de Queiroz and J. T. Yabu-Uti, ``Progressive decimation-interpolation for pyramid coding,'' in portuguese, Proc. of Simposio Brasileiro de Computacao Grafica e Processamento de Imagens, Gramado, Brazil, pp. 166-176, May 1990.
Unpublished work
  1. D. Dias and R .de Queiroz, `` A model for the electronic representation of Brazilian bank checks,'' 2006.
  2. R. de Queiroz and R. Eschbach, `` A method for rate control and compression estimation in JPEG,'' 2001.
Contribution to books
  1. R. F. Coelho, V. H. Nascimento, R. L. de Queiroz, J. M. T. Romano, C. C. Cavalcante, (Editors) Signals and Images: Advances and Results in Speech, Estimation, Compression, Recognition, Filtering, and Processing CRC Press, 2015.
  2. T. A. Fonseca and R. L. de Queiroz, Energy-aware video compression , in Signals and Images: Advances and Results in Speech, Estimation, Compression, Recognition, Filtering, and Processing, edited by R. F. Coelho, V. H. Nascimento, R. L. de Queiroz, J. M. T. Romano, C. C. Cavalcante, Editors, CRC Press, 2005.
  3. R. L. de Queiroz, Compressing Compound Documents , in The Document and Image Compression Handbook, edited by M. Barni, Marcel-Dekker, 2005.
  4. R. L. de Queiroz, Compression of Color Images , Chapter 8 in The Digital Color Imaging Handbook, edited by G. Sharma, CRC Press, 2002.
  5. R. L. de Queiroz and T. D. Tran, Lapped Transforms for Image Compression, Chap. 5 in The Handbook on Transforms and Data Compression, edited by K. R. Rao and P. Yip, CRC Press, 2001.
  6. R. L. de Queiroz, Lapped Transforms , Chap. 14 in The Transforms and Applications Handbook, edited by A. Poularikas, CRC/IEEE Press, 2000.
  7. R. L. de Queiroz, Lapped Transforms , Chap. 38 in The Digital Signal Processing Handbook, edited by V. Madisetti and D. Williams, CRC Press, 1998.
  8. R. L. de Queiroz and K. R. Rao, Transform Coding, Chap. 7 in the Handbook on Visual Communications, edited by J. W. Woods and H. M. Hang, Academic Press, 1995.

Issued Patents
  1. R. de Queiroz, "System for authentication of JPEG image data", December 1, 2009, U.S. Patent # 7,627,761.
  2. Z. Fan, R. de Queiroz, R. Eschbach, and S. Wang, "Decompression with reduced ringing artifacts," September 15 2009, U.S. Patent # 7,590,298.
  3. R. de Queiroz, "System and method for authentication of JPEG image data", February 17, 2009, U.S. Patent # 7,493,489.
  4. R. de Queiroz  and K. Braun, "Method for embedding color image information into a black-and-white image", June 24, 2008, U.S.Patent # 7,391,901.
  5. R. de Queiroz, "System and method for authentication of JPEG image data," April 15, 2008, U.S.Patent # 7,360,093.
  6. R. de Queiroz, "Method for authentication of JPEG image data," December 25, 2007, U.S. Patent # 7,313,696.
  7. R. de Queiroz, R. Loce, K. Braun and R. Bala, "System and method for digital watermarking in a calibrated printing path," May 8, 2007, U.S. Patent # 7,215,817.
  8. Z. Fan and R. de Queiroz, "Maximum likelihood estimation of JPEG quantization values,"  March 6 2007, U.S. Patent # 7,187,805.
  9. R. de Queiroz, "Method and apparatus for image classification," Sep. 12, 2006, U.S. Patent # 7,106,901.
  10. R. de Queiroz, R. Loce. K. Braun, R. Bala, "System and method for digital watermarking in a calibrated printing path," July, 4, 2006, U.S. Patent # 7,070,252.
  11. T. Balasubramanian, R. de Queiroz, R. Eschbach, an W. Wu,  "Gamut mapping preserving local luminance differences with adaptive spatial filtering", October 11, 2005, U.S. Patent # 6,954,287.
  12. R. Eschbach and R. de Queiroz, "Resolution enhancement of compressed image data," September 21, 2004, U.S. Patent # 6,795,211.
  13. R. de Queiroz, " Method for decompressing JPEG files using a variable block size inverse discrete cosine transform," August 17, 2004, U.S. Patent # 6,778,707.
  14. R. de Queiroz and R. Eschbach,  "Fast preview of CCITT-compressed documents," August 17, 2004, U.S. Patent # 6,778,301.
  15. R. de Queiroz, "Halftone detection in the wavelet domain," May 18, 2004, U.S. Patent # 6,738,524.
  16. R. de Queiroz and T. Balasubramanian,"Principal axis look-up for color correction," March 16, 2004, U.S. Patent #  6,707,938.
  17. R. de Queiroz, P. Fleckenstein, ''HVQ-based filtering method,'' January 27, 2004, U.S. Patent # 6,683,994.
  18. T. Balasubramanian, R. de Queiroz, K. Braun, R. Eschbach, ''Gamut mapping preserving local luminance differences,'' November 11, 2003, U.S. Patent # 6,646,762.
  19. R. de Queiroz, ''Method of compressing JPEG files using a conditional transform,'' August 26, 2003, U.S. Patent # 6,611,626.
  20. R. de Queiroz, ''Generic pre-processing of mixed raster content planes,'' August 19, 2003, U.S. Patent # 6,608,928.
  21. R. de Queiroz, ''Method and apparatus for analyzing image data to use multiple transforms for enhanced image data transmission,'' May 13, 2003, U.S. Patent # 6,563,955.
  22. R. de Queiroz,   ``Blocking signature detection for identification of JPEG images,'' 5/7/2002, U.S. Patent # 6,385,342.
  23. R. de Queiroz,   ``Compression framework incorporating decoding commands,'' 4/23/2002, U.S. Patent # 6,377,706.
  24. R. de Queiroz, Z. Fan and T. Tran,   `` Method and apparatus for segmenting data to create mixed raster content planes, '' 4/16/2002, U.S. Patent # 6,373,981.
  25. R. de Queiroz, R. Eschbach, W. Fuss, R. Buckley,  ``Iterative smoothing technique for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios, '' 12/25/2001, U.S. Patent # 6,334,001.
  26. R. de Queiroz, R. Eschbach, W. Fuss, R. Buckley,  ``Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios, '' 08/14/2001, U.S. Patent # 6,275,620.
  27. R. de Queiroz, R. Eschbach, W. Fuss, R. Buckley,  ``Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios, '' 08/07/2001, U.S. Patent # 6,272,255.
  28. R. de Queiroz, G. Bozdagi, and R. Eschbach, ``Fully automatic pasting of images into compressed pre-collated documents, '' 08/07/2001, U.S. Patent # 6,272,251.
  29. R. de Queiroz, ``Method and apparatus for simulating JPEG compression,'' 07/03/2001, U.S. Patent # 6,256,421.
  30. R. de Queiroz, ``Blocking signature detection for identification of JPEG images,'' 07/03/2001, U.S. Patent # 6,256,416.
  31. R. de Queiroz, ``Blocking signature detection for identification of JPEG images,'' 04/17/2001, U.S. Patent # 6,219,450.
  32. R. de Queiroz, ``Blocking signature detection for identification of JPEG images,'' 02/27/2001, U.S. Patent # 6,195,457.
  33. T. Balasubramanian, R. de Queiroz, ``Multi-resolution color correction using wavelet transforms,'' 02/27/2001, U.S. Patent # 6,195,456.
  34. R. de Queiroz, ``Fast decompression and rotation for devices with asymmetric resolution,'' 01/16/2001, U.S. Patent # 6,175,653.
  35. R. de Queiroz, ``Method of compressing JPEG files,'' 12/26/2000, U.S. Patent # 6,167,153.
  36. R. Klassen, R. Balasubramanian, S. Harrington, R. de Queiroz, ``Color correction of a compressed image,'' 8/1/2000, U.S. Patent # 6,097,838.
  37. R. de Queiroz, R. Eschbach, J. Bollman, ``Minimal buffering method and system for optimized encoding tables in JPEG compression, '' 6/27/2000, U.S. Patent # 6,081,211.
  38. R. de Queiroz, ``Method and apparatus for reducing the complexity of color correction using subsampling,'' 6/13/2000, U.S. Patent # 6,075,886.
  39. R. de Queiroz and G. Bozdagi, `` Using encoding cost for segmentation of compressed image sequences,'' 5/2/2000, U.S. Patent # 6,058,210.
  40. R. Klassen, R. Balasubramanian, S. Harrington, R. de Queiroz, ``Color correction of a compressed image,'' 12/28/1999, U.S. Patent # 6,009,192.
  41. R. de Queiroz and D. Venable, ``Automatic image registration using binary moments,'' 4/6/1999, U.S. Patent # 5,892,854
  42. R. de Queiroz, ``Method and apparatus for the processing of a JPEG compressed image,'' 2/2/1999, U.S. Patent # 5,867,598.
  43. R. de Queiroz and R. Eschbach, ``Using encoding cost data for segmentation and background suppression in JPEG-compressed images,'' 12/29/1998, U.S. patent # 5,854,857.
  44. R. de Queiroz, ``Compression of image data with retaining cost data for each compressed image block,'' 11/17/1998, U.S. Patent # 5,838,831.
  45. R. de Queiroz, J. Luo and Z. Fan, ``Method and apparatus for wavelet-based universal halftone image descreening, '' U.S. Patent # 5,799,112, issued 25 August, 1998, European Patent (EP) # 827,333, issued 3/4/98.
  46. R. de Queiroz and R. Eschbach, ``Fast preview processing for JPEG compressed images,'' 10/7/1997, U.S. Statutory Invention H1684.

Supervised Work
  1. G. L. Sandri,  Automated Non-contact Heart Rate Measurement Using Conventional Video Cameras , Dissertação de Mestrado, Universidade de Brasília, 2016.
  2. G. M. Q. Mendonça,  Descritor Local Baseado no Algoritmo SIFT para Rastreamento e Segmentação de Objetos em Vídeo via Grafos de Regiões , (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2016.
  3. G. L. de Oliveira,  Motion Compensation with Minimal Residue Dispersion Matching Criteria , Dissertação de Mestrado, Universidade de Brasília, 2016.
  4. R. U. Ferreira, Super-Resolução Baseada em Correspondência de Características SIFT e Casamento de Gradientes , (in Portuguese), Tese de Doutorado, Universidade de Brasília, 2015.
  5. J. J. C. Cartajena, Codificação de Vídeo Utilizando Modelos de Texturas, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2013.
  6. M. L. C. Cabrera, Conversão de Vídeo 2D para 3D em Filmagens Panorâmicas de Futebol (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2013.
  7. E. M. Hung, Realce de Vídeo para Sequências de Qualidade e Resolução Variáveis , (in Portuguese), Tese de Doutorado, Universidade de Brasília, 2012.
  8. D. C. Garcia, Técnicas de Super-Resolução para Sistemas de Vídeo de Múltiplas Vistas em Resolução Mista , (in Portuguese), Tese de Doutorado, Universidade de Brasília, 2012.
  9. T. A. Fonseca, Codificação de Vídeo Escalonável em Complexidade e em Energia, (in Portuguese), Tese de Doutorado, Universidade de Brasília, 2012.
  10. T. G. Scandaroli,  Síntese e Codificação de Vistas Virtuais para Sistemas de Ponto de Vista Livre , (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2012.
  11. A. Zaghetto,  Compressão de Documentos Compostos Usando H.264/AVC-Intra, (in Portuguese), Tese de Doutorado, Universidade de Brasília, 2009.
  12. B. Macchiavello, Codificador Distribuido de Video com Complexidade Variável a Partir de Codificação em Resolução Mista, (in Portuguese), Tese de Doutorado, Universidade de Brasília, 2009.
  13. K. F. Oliveira, Análise da Transformada Wavelet Direcional Adaptativa na Compressão de Imagens, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2009.
  14. R. U. Ferreira, Codificador H.264/AVC com Compensação de Movimento Baseada em Partições Alternativas de Macroblocos, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2009.
  15. F. Brandi, Super-Resolução Utilizando Quadros-Chave em Sequências de Resolução Mista, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2009.
  16. R. G. Oliveira, Avaliação do Desempenho de Transformadas Sobrepostas e Wavelets nos Codificadores Padrão JPEG 2000 e H.264/AVC, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2008.
  17. T. A. Fonseca, Redução de Complexidade na Compressão de Vídeo de Alta Resolução, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2008.
  18. E. P. Silva, Transcodificador de Vídeo Wyner-Ziv/H.263 Para Comunicação Entre Dispositivos Móveis, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2008.
  19. E. M. Hung, Compensação de Movimento Utilizando Blocos Multi-Escala e Forma Variável Em Um Codec de Vídeo Híbrido,  (in Portuguese),  Dissertação de Mestrado, Universidade de Brasília, 2007.
  20. F. N. Leite, Calibração de Dispositivos a Cores Utilizando Uma Câmera Digital, (in Portuguese),  Dissertação de Mestrado, Universidade de Brasília, 2007.
  21. D. Dias, Modelo Para a Representação Eletrônica de Cheques, (in Portuguese), Dissertação de Mestrado, Universidade de Brasília, 2006.
  22. A. L. Santos, Um Método de Ocultamento de Erros em Transmissão de Vídeo, (in Portuguese), Dissertação de Mestrado, Universidade Federal do Rio de Janeiro, 2006.
  23. B. Woz, An Exploration of MPEG-7 Shape Descriptors, Master´s Thesis, Rochester Institute of Technology, 2003.
  24.  
Other
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  2. R. L. de Queiroz, Multiresolution Systems for Redundancy Extraction and Progressive transmission in Image Coding, in portuguese, Master's Thesis, FEE UNICAMP, Brazil, Nov. 1990.
  3. R. L. de Queiroz, Design of FIR Filters for Decimation and Interpolation of Discrete Signals, in portuguese, Technical Report 017/89, Contrato 208/89, Convênio UNICAMP-TELEBRAS, FEE UNICAMP, Brazil, Sep. 1989.
  4. R. L. de Queiroz, Design of IIR Filters Through the Bilinear Transform, software for design and implementation (PC-DOS) and report, in portuguese, Final Project, Universidade de Brasilia, Brazil, Dec. 1986.
  5.