Preprints:
  1. X. Gibert-Serra, V. M. Patel, and R. Chellappa, "Deep multi-task learning for railway track inspection," submitted Oct. 2015. (pdf)
  2. P. Samangouei, V. M. Patel, and R. Chellappa, "Continuous user authentication on mobile devices based on facial attributes," submitted Oct. 2015. (pdf)

Books:
  1. R. Chellappa and V. M. Patel, Image and video analytics, Springer, 2016.
  2. V. M. Patel and R. Chellappa, Sparse representations and compressive sensing for imaging and vision, SpringerBriefs, 2013.

Book Chapters:
  1. R. Chellappa and V. M. Patel, "Sparse and low-rank models for visual domain adaptation," in Pattern Recognition: From Classical to Modern Approaches, S. K. Pal and A. Pal (Eds.), World Scientific, 2015.
  2. V. M. Patel, J. Ni and R. Chellappa, "Remote identification of faces," in Signal and Image Processing for Biometrics: State of the Art and Recent Advances, J. Scharcanski, H. Proenca, and E. Du (Eds.), Springer, 2014.
  3. V. M. Patel, J. Ni and R. Chellappa, "Remote face recognition," in Encyclopedia of Biometrics 2nd Ed., S. Z. Li and A. K. Jain (Eds.), Springer, 2013.
  4. V. M. Patel and R. Chellappa, "Dictionary-based methods for object recognition," in Handbook of Statistics: Machine Learning Volume 31, V. Govindaraju and C. R. Rao (Eds.), Elsevier-North Holland, 2012.
  5. V. M. Patel and R. Chellappa, "Approximation methods for the recovery of shapes and images from gradients," in Excursions in Harmonic Analysis: The February Fourier Talks at the Norbert Wiener Center, T. Andrews, R. Balan, J. J. Benedetto, W. Czaja, and K. Okoudjou (Eds.), Springer, 2012.
  6. J. K. Pillai, V. M. Patel, R. Chellappa, and N. K. Ratha, "Robust and secure iris recognition," in Handbook of Iris Recognition, M. J. Burge and K. W. Bowyer (Eds.), Springer-Verlag, 2012.
  7. V. M. Patel, J. K. Pillai, and R. Chellappa, "Image and video-based biometrics," in Visual Analysis of Humans: Looking at People, T. B. Moeslund, A. Hilton, V. Kruger, and L. Sigal (Eds.), Springer-Verlag, 2011.

Journal Papers:
  1. H. V. Nguyen, H. T. Ho, V. M. Patel, and R. Chellappa, "DASH-N: Joint hierarchical domain adaptation and feature learning," IEEE Transactions on Image Processing, vol. 24, no. 12, pp. 5479 - 5491, Dec. 2015. (pdf)
  2. Y-C. Chen, V. M. Patel, P. J. Phillips, and R. Chellappa, "Dictionary-based face and person recognition from unconstrained video," IEEE Access: Special Issue on 4D’s of Machine Learn- ing for Biometrics: Deep Learning, Dictionary Learning, Domain Adaptation, and Distance Metric Learning, vol. 3, pp. 1783 - 1798, Oct. 2015. (link)
  3. A. Shrivastava, V. M. Patel, J. K. Pillai, and R. Chellappa, "Generalized dictionaries for multiple instance learning," International Journal of Computer Vision: Special Issue on Sparse Coding, vol. 114, no. 2, pp. 288-305, Sept. 2015. (pdf)
  4. V. M. Patel, N. K. Ratha, and R. Chellappa, "Cancelable biometrics: A review," IEEE Signal Processing Magazine: Special Issue on Biometric Security and Privacy, vol. 32, no. 5, pp. 54-65, Sept. 2015. (pdf)
  5. S. Shekhar, V. M. Patel, H. V. Nguyen and R. Chellappa, "Coupled projections for adaptation of dictionaries," IEEE Transactions on Image Processing, vol 24, no. 10, pp. 2941-2954, Oct. 2015. (pdf)
  6. R. Gopalan, R. Li, V. M. Patel and R. Chellappa, "Domain adaptation for visual recognition," Foundations and Trends on Computer Graphics and Vision, vol. 8, no. 4, pp 285-378, Mar. 2015. (pdf)
  7. A. Shrivastava, J. K. Pillai, and V. M. Patel, "Multiple kernel-based dictionary learning for weakly supervised classification," Pattern Recognition, vol. 48, no. 8, pp. 2667-2675, Aug. 2015. (pdf)
  8. V. M. Patel, H. V. Nguyen, and R. Vidal, "Latent space sparse and low-rank subspace clustering," IEEE Journal of Selected Topics in Signal Processing: Special Issue on Signal Processing for Big Data, vol. 9, no. 4, pp. 691-701, June 2015. (pdf)
  9. Y-C. Chen, V. M. Patel, R. Chellappa, and P. J. Phillips, "Salient views and view-dependent dictionaries for object recognition," Pattern Recognition: Special Issue on Discriminative Feature Learning from Big Data for Visual Recognition, accepted for publication, Jan. 2015. (pdf)
  10. Y-C. Chen, V. M. Patel, R. Chellappa, and P. J. Phillips, "Ambiguously labeled learning using dictionaries," IEEE Transactions on Information Forensics and Security: Special Issue on Facial Biometrics in the Wild, vol. 9, no. 12, pp. 2076-2088, Dec. 2014. (pdf)
  11. V. M. Patel, R. Gopalan, R. Li, and R. Chellappa, "Visual domain adaptation: a survey of recent advances," IEEE Signal Processing Magazine, vol. 32, no. 3, pp. 53 - 69, May 2015. (pdf)
  12. A. Shrivastava, V. M. Patel, and R. Chellappa, "Non-linear dictionary learning with partially labeled data," Pattern Recognition, vol. 48, no. 11, pp. 283-3292, Nov. 2015. (pdf)
  13. Q. Qiu, V. M. Patel, and R. Chellappa, "Information-theoretic dictionary learning for image classification," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 36, no. 11, pp. 2173-2184, Oct. 2014. (pdf)
  14. X. Gibert-Serra, V. M. Patel, D. Labate, and R. Chellappa, "Discrete shearlet transform on GPU with applciations in anomaly detection and denoising," EURASIP Journal on Advances in Signal Processing, vol. 2014, pp. 1-64, May 2014. (pdf)
  15. A. Shrivastava, V. M. Patel, and R. Chellappa, "Multiple kernel learning for sparse representation-based classification," IEEE Transactions on Image Processing, vol. 23, no. 7, pp. 3013-3024, July 2014. (pdf)
  16. V. M. Patel, Y-C Chen, R. Chellappa, and P. J. Phillips, "Dictionaries for image and video-based face recognition," Journal of the Optical Society of America A, vol. 31, no. 5, pp. 1090-1103, May 2014. (pdf)
  17. M. E. Fathy, V. M. Patel, T. Yeh, Y. Zhang, R. Chellappa, and L. Davis, "Screen-based active user authentication," Pattern Recognition Letters, vol. 42, pp. 122-127, June 2014. (pdf)
  18. V. M. Patel, G. R. Easley, R. Chellappa, and N. M. Nasrabadi, "Separated component-based restoration of speckled SAR images," IEEE Transactions on Geoscience and Remote Sensing, vol. 52, no. 2, pp. 1019-1029, Feb. 2014. (pdf)
  19. G. R. Easley, D. Labate, and V. M. Patel, "Directional multiscale processing of images using wavelets with composite dilations," Journal of Mathematical Imaging and Vision, vol. 48, no. 1, pp. 13-34, Jan. 2014. (pdf)
  20. S. Shekhar, V. M. Patel, N. M. Nasrabadi and R. Chellappa, "Joint sparse representation for robust multimodal biometrics recognition," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 36, no. 1, pp. 113-126, Jan. 2014. (pdf)
  21. H. V. Nguyen, V. M. Patel, N. M. Nasrabadi, and R. Chellappa, "Design of non-linear kernel dictionaries for object recognition," IEEE Transactions on Image Processing, vol. 22, no. 12, pp. 5123-5135, Dec. 2013. (pdf)
  22. S. Taheri, V. M. Patel, and R. Chellappa, "Component-based recognition of faces and facial expressions," IEEE Transactions on Affective Computing, vol. 4, no. 4, pp. 360-371, Oct. 2013. (pdf)
  23. V. M. Patel, T. Yeh, M. E. Fathy, Y. Zhang, Y. Chen, R. Chellappa, and L. Davis, "Screen fingerprints: a novel modality for active authentication," IEEE IT Professional Magazine: Special Issue on Security, vol. 15, no. 4, pp. 38-42, July 2013. (pdf)
  24. Y-C. Chen, C. S. Sastry, V. M. Patel, P. J. Phillips and R. Chellappa, "In-plane rotation and scale invariant clustering using dictionaries," IEEE Transactions on Image Processing, vol. 22, no. 6, pp. 2166-2180, June 2013. (pdf)
  25. R. Chellappa, J. Ni, and V. M. Patel, "Remote identification of faces: problems, prospects, and progress," Pattern Recognition Letters: Special Issue on Novel Pattern Recognition-based Methods for Reidentification in Biometric Context, vol. 33, no. 15, pp. 1849-1859, Oct. 2012. (Invited) (link)
  26. V. M. Patel and J. N. Mait, "Compressive passive millimeter-wave imaging with extended depth of field," Optical Engineering: Special Section on Terahertz and Millimeter Wave Imaging,  vol. 51, no. 9, Sept. 2012. (pdf)
  27. V. M. Patel, T. Wu, S. Biswas, P. J. Phillips, and R. Chellappa, "Dictionary-based face recognition under variable lighting and pose," IEEE Transactions on Information Forensics and Security, vol. 7, no. 3, pp. 954-965, June 2012. (pdf)
  28. V. M. Patel, R. Maleh, A. C. Gilbert, and R. Chellappa, "Gradient-based image recovery methods from incomplete Fourier measurements," IEEE Transactions on Image Processing, vol. 21, no. 1, pp. 94-105, Jan. 2012. (pdf)
  29. J. Ni, P. Turaga, V. M. Patel and, R. Chellappa, "Example-driven manifold priors for image deconvolution," IEEE Transactions on Image Processing, vol. 20, no. 11,  pp. 3086-3096, Nov. 2011. (pdf)
  30. J. K. Pillai, V. M. Patel, R. Chellappa and N. K. Ratha, "Random projections and sparse representations for secure and robust iris recognition," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 33, no. 9, pp. 1877-1893, Sept. 2011. (pdf)
  31. V. M. Patel, N. M. Nasrabadi, and R. Chellappa, "Sparsity-motivated automatic target recognition," Applied Optics, vol. 50, no. 10, pp. 1425-1433, April 2011. (link)
  32. V. M. Patel, G. R. Easley, D. M. Healy, Jr. and R. Chellappa, "Compressed synthetic aperture radar," IEEE Journal of Selected Topics in Signal Processing: Special Issue on Compressive Sensing, vol. 4, no. 2, pp. 244-254, April 2010. (pdf)[Nominated for the IEEE Signal Processing Society 2012 Young Author Best Paper Award]
  33. V. M. Patel, G. R. Easley and D. M. Healy, Jr., "Shearlet-based deconvolution," IEEE Transactions on Image Processing, vol. 18, no. 12, pp. 2673-2685, Dec. 2009. (pdf)

Conference Papers:
  1. J-C. Chen, V. M. Patel, and R. Chellappa, "Unconstrained face verification using deep CNN features," IEEE Winter conference on Applications of Computer Vision (WACV), Lake Placid, NY, 2016. (pdf)
  2. R. Ranjan, S. Zhou, J-C. Chen, A. Kumar, A. Alavi, V. M. Patel, and R. Chellappa, "Unconstrained age estimation with deep convolutional neural networks," IEEE International Conference on Computer Vision (ICCV) workshop on ChaLearn Looking at People (ChaLearn LaP), Santiago, Chile, 2015. (pdf)
  3. J-C. Chen, R. Ranjan, A. Kumar, C-H. Chen, V. M. Patel, and R. Chellappa, "An end- to-end system for unconstrained face verification with deep convolutional neural networks," IEEE International Conference on Computer Vision (ICCV) workshop on ChaLearn Looking at People (ChaLearn LaP), Santiago, Chile, 2015. (pdf) 
  4. X. Gibert-Serra, V. M. Patel, and R. Chellappa, "Sequential score adaptation with extreme value theory for robust railway track inspection," IEEE International Conference on Computer Vision (ICCV) workshop on Computer Vision for Road Scene Understanding and Autonomous Driving (CVRSUAD), Santiago, Chile, 2015. (pdf) 
  5. R. Ranjan, V. M. Patel, and R. Chellappa, "A deep pyramid deformable part model for face detection," International Conference on Biometrics Theory, Applications and Systems (BTAS), Arlington, VA, 2015. (pdf) [Best Poster Award]
  6. P. Samangouei, V. M. Patel, and R. Chellappa, "Attribute-based continuous user authentication on mobile devices," International Conference on Biometrics Theory, Applications and Systems (BTAS), Arlington, VA, 2015. (pdf) [Best Paper Award (Bronze)]
  7. J-C. Chen, S Sankaranrayanan, V. M. Patel, and R. Chellappa, "Unconstrained face verification using Fisher vectors computed from frontalized faces," International Conference on Biometrics Theory, Applications and Systems (BTAS), Arlington, VA, 2015. (pdf)
  8. V. M. Patel and M. A. Powers, "Structured representation-based robust agile-beam LADAR imaging," IEEE International Conference on Image Processing (ICIP), Quebec city, Canada, 2015. (pdf)
  9. H. Zhang, V. M. Patel, and R. Chellappa, "Common sparse representation-based robust multimodal biometrics recognition," IEEE International Conference on Image Processing (ICIP), Quebec city, Canada, 2015. (pdf)
  10. G. Warnell, V. M. Patel, and R. Chellappa, "Integrability-regularized phase unwrapping via sparse error correction," IEEE International Conference on Image Processing (ICIP), Quebec city, Canada, 2015. (pdf)
  11. S. Sankaranarayanan, V. M. Patel, and R. Chellappa, "3D facial model synthesis using coupled dictionaries," IEEE International Conference on Image Processing (ICIP), Quebec city, Canada, 2015. (pdf)
  12. J-C. Chen, V. M. Patel, and R. Chellappa, "Landmark-based Fisher vector representation for video-based face verification," IEEE International Conference on Image Processing (ICIP), Quebec city, Canada, 2015. (pdf)
  13. X. Gibert-Serra, V. M. Patel, and R. Chellappa, "Material classification and semantic segmentation of railway track images with deep convolutional neural networks," IEEE International Conference on Image Processing (ICIP), Quebec city, Canada, 2015. (pdf) [Top 10% Award]
  14. C-H. Chen, V. M. Patel and R. Chellappa, "Matrix completion for resolving label ambiguity," IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Boston, MA, 2015. (pdf)
  15. H. Zhang, V. M. Patel and R. Chellappa, "Robust multimodal recognition via multitask multivariate low-rank representations," IEEE International Conference on Automatic Face and Gesture Recognition (FG), Ljublijana, Slovenia, 2015. (pdf)
  16. H. Zhang, V. M. Patel, S. Shekhar and R. Chellappa, "Domain adaptive sparse representation-based classification," IEEE International Conference on Automatic Face and Gesture Recognition (FG), Ljublijana, Slovenia, 2015. (pdf)
  17. M. E. Fathy, V. M. Patel and R. Chellappa, "Face-based active authentication on mobile devices," IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brisbane, Australia, 2015. (pdf)
  18. H. Zhang, V. M. Patel, M. E. Fathy  and R. Chellappa, "Touch gesture-based active user authentication using dictionaries," IEEE Winter conference on Applications of Computer Vision (WACV), Waikoloa Beach, HI, 2015. (pdf)
  19. X. Gibert-Serra, V. M. Patel and R. Chellappa, "Robust fastener detection for autonomous visual railway track inspection," IEEE Winter conference on Applications of Computer Vision (WACV), Waikoloa Beach, HI, 2015. (pdf)
  20. A. Shrivastava, J. K. Pillai, V. M. Patel and R. Chellappa, "Dictionary-based multiple instance learning," IEEE International Conference on Image Processing (ICIP), Paris, France, 2014. (pdf)
  21. J-C Chen, V. M. Patel, H. T. Ho and R. Chellappa, "Dictionary-based video face recognition using dense multi-scale facial landmark features," IEEE International Conference on Image Processing (ICIP), Paris, France, 2014. (pdf) [Top 10% Award]
  22. S. Shekhar, V. M. Patel and R. Chellappa, "Analysis sparse coding models for image-based classification," IEEE International Conference on Image Processing (ICIP), Paris, France, 2014. (pdf)
  23. V. M. Patel and R. Vidal, "Kernel sparse subspace clustering," IEEE International Conference on Image Processing (ICIP), Paris, France, 2014. (pdf)
  24. E. Vasiete, Y. Chen, I. Char, T. Yeh, V. M. Patel, L. Davis and R. Chellappa, "Toward a non-intrusive, physio-behavioral biometric for smartphones," ACM International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI), Toronto, Canada, 2014. (pdf)
  25. H. V. Nguyen and V. M. Patel, "Max residual classifier," IEEE Winter conference on Applications of Computer Vision (WACV), Steamboat Springs, CO, 2014. (pdf)
  26. Y-C. Chen, V. M. Patel, R. Chellappa and P. J. Phillips, "Adaptive representations for video-based face recognition across pose," IEEE Winter conference on Applications of Computer Vision (WACV), Steamboat Springs, CO, 2014. (pdf)
  27. A. Shrivastava, S. Shekhar, and V. M. Patel, "Unsupervised domain adaptation using parallel transport on Grasmann manifold," IEEE Winter conference on Applications of Computer Vision (WACV), Steamboat Springs, CO, 2014. (pdf)
  28. V. M. Patel, H. V. Nguyen and R. Vidal, "Latent space sparse subspace clustering," International Conference on Computer Vision (ICCV), Sydney, Australia, 2013. (pdf)
  29. Y-C. Chen, V. M. Patel, J. K. Pillai, R. Chellappa and P. J. Phillips, "Dictionary learning from ambiguously labeled data," IEEE conference on Computer Vision and Pattern Recognition (CVPR), Portland, OR, 2013. (pdf)
  30. S. Shekhar, V. M. Patel, H. V. Nguyen and R. Chellappa, "Generalized domain adaptive dictionaries," IEEE conference on Computer Vision and Pattern Recognition (CVPR), Portland, OR, 2013. (pdf)
  31. V. M. Patel, Q. Qiu, and R. Chellappa, "Dictionaries for image-based recognition," Information Theory and Applications Workshop (ITA), San Diego, CA, 2013. (pdf)
  32. V. M. Patel, A. S. Hedden and J. N. Mait, "Computational imaging with a confocal 220-GHz electronically scanned reflectarray," IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting (AP-S/USNC-URSI), Lake Buena Vista, FL, 2013.
  33. Y-C. Chen, V. M. Patel, S. Shekhar, R. Chellappa and P. J. Phillips, "Video-based face recognition via joint sparse representation," IEEE International Conference on Automatic Face and Gesture Recognition (FG), Shanghai, China, 2013. (pdf)
  34. A. Shrivastava, H. V. Nguyen, V. M. Patel, and R. Chellappa, "Design of non-linear discriminative dictionaries for image classification," Asian Conference on Computer Vision (ACCV), Daejeon, Korea, 2012. (pdf)
  35. Q. Qiu, V. M. Patel, P. Turaga, R. Chellappa, "Domain adaptive dictionary learning," European Conference on Computer Vision (ECCV), Florence, Italy, 2012. (pdf)
  36. H. V. Nguyen, V. M. Patel, N. M. Nasrabadi, and R. Chellappa, "Sparse embedding: a framework for sparsity promoting dimensionality reduction," European Conference on Computer Vision (ECCV), Florence, Italy, 2012. (pdf)
  37. Y-C. Chen, V. M. Patel, P. J. Phillips and R. Chellappa, "Dictionary-based face recognition from video," European Conference on Computer Vision (ECCV), Florence, Italy, 2012. (pdf)
  38. S. Shekhar, V. M. Patel, N. M. Nasrabadi and R. Chellappa, "Joint sparsity-based robust multimodal biometrics recognition," European Conference on Computer Vision (ECCV) Workshop on Information Fusion in Computer Vision for Concept Recognition (IFCVCR), Florence, Italy, 2012. (pdf)
  39. A. Shrivastava, J. K. Pillai, V. M. Patel, R. Chellappa, "Learning discriminative dictionaries with partially labeled data," IEEE International Conference on Image Processing (ICIP), Orlando, FL, 2012. (pdf)
  40. Y-C. Chen, V. M. Patel, R. Chellappa and P. J. Phillips, "Salient view selection based on sparse representation," IEEE International Conference on Image Processing (ICIP), Orlando, FL, 2012. (pdf)
  41. G. R. Easley, D. Labate and V. M. Patel, "Hyperbolic shearlets," IEEE International Conference on Image Processing (ICIP), Orlando, FL, 2012. (pdf)
  42. A. Mehmood, V. M. Patel, and R. Damarla, "Discrimination of bipeds from quadrupeds using seismic footstep signatures," IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Munich, Germany, 2012. (pdf)
  43. V. M. Patel and J. N. Mait, "Passive millimeter-wave imaging with extended depth of  field and sparse data," IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Kyoto, Japan, 2012. (pdf)
  44. H. V. Nguyen, V. M. Patel, N. M. Nasrabadi, and R. Chellappa, "Kernel dictionary learning," IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Kyoto, Japan, 2012. (pdf)
  45. Y-C. Chen, C. S. Sastry, V. M. Patel, P. J. Phillips and R. Chellappa, "Rotation invariant simultaneous clustering and dictionary learning," IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Kyoto, Japan, 2012. (pdf)
  46. V. M. Patel and R. Chellappa, "Sparse representations, compressive sensing and dictionaries for pattern recognition," Asian Conference on Pattern Recognition (ACPR), Beijing, China, 2011. (pdf)
  47. S. Shekhar, V. M. Patel, and R. Chellappa, "Synthesis-based recognition of low resolution faces," International Joint Conference on Biometrics (IJCB), Washington DC, 2011. (pdf)
  48. V. M. Patel, G. R. Easley, and R. Chellappa, "Multilayered Image representation-based compressive SAR imaging," IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting (AP-S/USNC-URSI), Spokane , WA, 2011. (Invited)
  49. V. M. Patel, T. Wu, S. Biswas, P. J. Phillips, and R. Chellappa, "Illumination robust dictionary-based face recognition," IEEE International Conference on Image Processing (ICIP), Brussels, Belgium, 2011. (pdf)
  50. V. M. Patel, G. R. Easley, and R. Chellappa, "Component-based restoration of speckled images," IEEE International Conference on Image Processing (ICIP), Brussels, Belgium, 2011. (pdf)
  51. G. R. Easley, D. Labate and V. M. Patel, "Multi-composite wavelet estimation," in Wavelets and Sparsity XIV, San Diego, CA, 2011. (pdf)
  52. V. M. Patel, R. Chellappa and M. Tistarelli, "Sparse representations and random projections for robust and cancelable biometrics," International Conference on Control, Automation, Robotics and Vision (ICARCV), Singapore, 2010. (Invited) (pdf)
  53. V. M. Patel, N. M. Nasrabadi, and R. Chellappa, "Automatic target recognition based on simultaneous sparse representation," IEEE International Conference on Image Processing (ICIP), Hong Kong, 2010. (pdf)
  54. J. Ni, P. Turaga, V. M. Patel, and R. Chellappa, "Object dependent manifold priors for image deconvolution," Digital Image Processing and Analysis (DIPA), Tucson, AZ, 2010. (pdf)
  55. V. M. Patel, N. M. Nasrabadi, and R. Chellappa, "Sparsity inspired automatic target recognition," Defense, Security and Sensing, Proceedings of SPIE, Orlando, FL, 2010. (link)
  56. V. M. Patel, G. R. Easley, and R. Chellappa, "Multiscale directional filtering of noisy InSAR phase images," Defense, Security and Sensing, Proceedings of SPIE, Orlando, FL, 2010. (Invited) (link)
  57. J. Pillai, V. M. Patel, R. Chellappa and N. K. Ratha, "Sectored random projections for cancelable iris biometrics," IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Dallas, TX, 2010. (pdf)
  58. J. Pillai, V. M. Patel and R. Chellappa, "Sparsity inspired selection and recognition of iris images," IEEE International Conference on Biometrics: Theory, Applications and Systems (BTAS), Washington, DC, 2009. (pdf)
  59. V. M. Patel, G. R. Easley, R. Chellappa and D. M. Healy, Jr., "Enhancing sparsity using gradients for compressive sensing," IEEE International Conference on Image Processing (ICIP), Cairo, Egypt, 2009. (pdf)
  60. V. M. Patel, G. R. Easley, D. M. Healy, Jr., and R. Chellappa, "Compressed sensing for synthetic aperture radar imaging," IEEE International Conference on Image Processing (ICIP), Cairo, Egypt, 2009. (pdf)
  61. G. R. Easley, V. Patel, and D. M. Healy, Jr., "Inverse halftoning using a shearlet representation," in Wavelets XIII, San Diego, CA, 2009. (Invited) (pdf)
  62. V. M. Patel, G. R. Easley, and D. M. Healy, Jr., "A new multiresolution generalized directional filter bank design and application in image enhancement," IEEE International Conference on Image Processing (ICIP), San Diego, CA, 2008. (pdf)
  63. G. R. Easley, V. Patel, and D. M. Healy, Jr., "An M-channel directional filter bank compatible with the contourlet and shearlet frequency tiling," in Wavelets XII, San Diego, CA, 2007. (pdf)

Technical Reports:
  1. V. M. Patel, "Image restoration and enhancement using shearlets," Oberwolfach Report, 44/2010, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach-Walke, Germany, pp. 33-34, 2010.
  2. V. M. Patel, T. Wu, S. Biswas, R. Chellappa, and P. J. Phillips, "Dictionary-based face recognition," UMIACS Tech. Report, UMIACS-TR-2010-07/CAR-TR-1030, University of Maryland, College Park, July 2010.
  3. V. M. Patel, G. R. Easley, D. M. Healy, Jr., R. Chellappa, "Compressive synthetic aperture radar imaging," UMIACS Tech. Report, UMIACS-TR-2009-05/CAR-TR-1028, University of Maryland, College Park, Mar. 2009.