Computer Vision and Pattern Recognition

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Journal Papers

• Ghosh, S.; Vatsa, M.; Singh, R.; Ratha, N. (2025). On learning discriminative embeddings for optimized top-k matching. Pattern Recognition, 111341.
• Dorai, C.; Ratha, N.; Bolle, R. (2004). Dynamic behavior analysis in compressed fingerprint videos. IEEE Transactions on Circuits and Systems for Video Technology, 58-73.
• Ratha, N.; Jain, A. (1999). Computer vision algorithms on reconfigurable logic arrays. IEEE Transactions on Parallel and Distributed Systems, 29-43.
• Jain, A.; Ratha, N.; Lakshmanan, S. (1997). Object detection using Gabor filters. Pattern Recognition, 295-309.

Conference Papers

• Kaushik, A.; Sunil Rufus, R.; Ratha, N. (2025). Enhancing Authorship Attribution Through Embedding Fusion: A Novel Approach with Masked and Encoder-Decoder Language Models. International Conference on Pattern Recognition, 460-471.
• Roy, S.; Yalavarthi, B.; Ratha, N. (2024). Efficient Convolutions using Box-Filters for Low-Latency Image Processing. IEEE Western New York Image and Signal Processing Workshop (WNYISPW), 5-Jan.
• Bagchi, S.; Ratha, N. (2023). Image Enhancement for Unconstrained Environments. IEEE Western New York Image and Signal Processing Workshop (WNYISPW), 5-Jan.
• Bagchi, S.; Chanda, G.; Agarwal, A.; Ratha, N. (2022). On deep learning for dorsal hand vein recognition. IEEE Western New York Image and Signal Processing Workshop (WNYISPW), 4-Jan.
• Peng, X.; Ratha, N.; Pankanti, S. (2016). Learning face recognition from limited training data using deep neural networks. 23rd International Conference on Pattern Recognition (ICPR), 1442-1447.
• Sagonas, C.; Panagakis, Y.; Arunkumar, S.; Ratha, N.; Zafeiriou, S. (2016). Back to the future: A fully automatic method for robust age progression. 23rd International Conference on Pattern Recognition (ICPR), 4226-4231.
• Cheng, Y.; Ratha, N.; Pankanti, S. (2016). Outlier faces detector via efficient cohesive subgraph identification. IEEE International Conference on Image Processing (ICIP), 1659-1663.
• Pankanti, S.; Brown, L.; Connell, J.; Datta, A.; Fan, Q.; Feris, R.; Haas, N.; Ratha, N.; Trinh, H. (2012). Practical computer vision: Example techniques and challenges. IBM Journal of Research and Development, 3:1-3:12.
• Aggarwal, G.; Ratha, N.; Connell, J.; Bolle, R. (2008). Physics-based revocable face recognition. IEEE International Conference on Acoustics, Speech and Signal Processing, 5232-5235.
• Aggarwal, G.; Ratha, N.; Jea, T.; Bolle, R. (2008). Gradient based textural characterization of fingerprints. IEEE Second International Conference on Biometrics: Theory, Applications and Systems, 5-Jan.
• Aggarwal, G.; Ratha, N.; Bolle, R.; Chellappa, R. (2008). Multi-biometric cohort analysis for biometric fusion. IEEE International Conference on Acoustics, Speech and Signal Processing, 5224-5227.
• Ratha, N.; Figueroa-Villanueva, M.; Connell, J.; Bolle, R. (2004). A secure protocol for data hiding in compressed fingerprint images. Biometric Authentication: ECCV 2004 International Workshop, BioAW 2004, 205-216.
• Chikkerur, S.; Govindaraju, V.; Pankanti, S.; Bolle, R.; Ratha, N. (2004). Minutiae Verification in Fingerprint Images Using Steerable Wedge Filters. ICVGIP, 611-616.
• Osborne, M.; Ratha, N.; (2003). A jc-bioapi compliant smart card with biometrics for secure access control. International Conference on Audio-and Video-Based Biometric Person Authentication, 903-910.
• Figueroa-Villanueva, M.; Ratha, N.; Bolle, R.; (2003). A comparative performance analysis of JPEG 2000 vs. WSQ for fingerprint image compression. International Conference on Audio-and Video-Based Biometric Person Authentication, 385-392.
• Noronha, S.; Dorai, C.; Ratha, N.; Bolle, R. (2003). Architecture for synchronous multiparty authentication using biometrics. International Conference on Audio-and Video-Based Biometric Person Authentication, 609-616.
• Pankanti, S.; Ratha, N.; Bolle, R. (2002). Structure in errors: a case study in fingerprint verification. International Conference on Pattern Recognition, 440-443.
• Connell, J.; Ratha, N.; Bolle, R. (2002). Fingerprint image enhancement using weak models. International Conference on Image Processing, I-I.
• Yao, M.; Pankanti, S.; Haas, N.; Ratha, N.; Bolle, R. (2002). Quantifying quality: A case study in fingerprints. Proc. of IEEE Conference on Automatic Identification Advanced Technologies (AutoID), 126-131.
• Ratha, N.; Senior, A.; Bolle, R. (2001). Automated biometrics. Advances in Pattern Recognition—ICAPR 2001: Second International Conference Rio de Janeiro, Brazil, March 11–14, 2001 Proceedings, 447-455.
• Ratha, N.; Connell, J.; Bolle, R. (2001). An analysis of minutiae matching strength. Audio-and Video-Based Biometric Person Authentication: Third International Conference, AVBPA 2001 Halmstad, Sweden, June 6–8, 2001 Proceedings, 223-228.
• Ratha, N.; Connell, J.; Bolle, R. (2000). Secure data hiding in wavelet compressed fingerprint images. Proceedings of the 2000 ACM Workshops on Multimedia, 127-130.
• Ratha, N.; Bolle, R.; Pandit, V.; Vaish, V. (2000). Robust fingerprint authentication using local structural similarity. Proceedings Fifth IEEE Workshop on Applications of Computer Vision, 29-34.
• Ghosal, S.; Ratha, N.; Udupa, R.; Pankanti, S. (2000). Hierarchical partitioned least squares filter-bank for fingerprint enhancement. Proceedings 15th International Conference on Pattern Recognition, ICPR-2000, 334-337.
• Ghosal, S.; Udupa, R.; Panknti, S.; Ratha, N. (2000). Learning partitioned least squares filters for fingerprint enhancement. Proceedings Fifth IEEE Workshop on Applications of Computer Vision, 7-Feb.
• Dorai, C.; Ratha, N.; Bolle, R. (2000). Detecting dynamic behavior in compressed fingerprint videos: Distortion. Proceedings IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2000, 320-326.
• Ratha, N.; Connell, J.; Bolle, R. (1998). Image mosaicing for rolled fingerprint construction. Proceedings, Fourteenth International Conference on Pattern Recognition, 1651-1653.
• Ratha, N.; Bolle, R. (1998). Effect of controlled image acquisition on fingerprint matching. Proceedings, Fourteenth International Conference on Pattern Recognition, 1659-1661.