Texture inspection for defects using neural networks and support vector machines. - Ajay Kumar 001; Helen C. Shen (ICIP (3), 2002)

Defect detection in textured materials using optimized filters. - Ajay Kumar 001; Grantham K. H. Pang (IEEE Trans. Syst. Man Cybern. Part B, 2002)

Personal Verification Using Palmprint and Hand Geometry Biometric. - Ajay Kumar 001; David C. M. Wong; Helen C. Shen; Anil K. Jain 001 (AVBPA, 2003)

Inspection of surface defects using optimal FIR filters. - Ajay Kumar 001 (ICASSP (2), 2003)

Neural network based detection of local textile defects. - Ajay Kumar 001 (Pattern Recognit., 2003)

Palmprint identification using palmcodes. - Ajay Kumar 001; Helen C. Shen (ICIG, 2004)

Biometric Recognition Using Feature Selection and Combination. - Ajay Kumar 001; David Zhang 001 (AVBPA, 2005)

Personal authentication using multiple palmprint representation. - Ajay Kumar 001; David Zhang 001 (Pattern Recognit., 2005)

Estimating Sample Size Requirements for Reliable Personal Authentication Using User-Specific Samples. - Jay R. Bhatnagar; Ajay Kumar 001 (CVPR Workshops, 2006)

Combining Fingerprint, Palmprint and Hand-Shape for User Authentication. - Ajay Kumar 001; David Zhang 001 (ICPR (4), 2006)

Integrating Shape and Texture for Hand Verification. - Ajay Kumar 001; David Zhang 001 (Int. J. Image Graph., 2006)

Personal authentication using hand images. - Ajay Kumar 001; David C. M. Wong; Helen C. Shen; Anil K. Jain 001 (Pattern Recognit. Lett., 2006)

Personal recognition using hand shape and texture. - Ajay Kumar 001; David Zhang 001 (IEEE Trans. Image Process., 2006)

A Novel Approach to Improve Biometric Recognition Using Rank Level Fusion. - Jay R. Bhatnagar; Ajay Kumar 001; Nipun Saggar (CVPR, 2007)

Improving Iris Identification using User Quality and Cohort Information. - Arun Passi; Ajay Kumar 001 (CVPR, 2007)

Biometric Authentication using Finger-Back Surface. - Ch. Ravikanth; Ajay Kumar 001 (CVPR, 2007)

Biometric Recognition using Entropy-Based Discretization. - Ajay Kumar 001; David Zhang 001 (ICASSP (2), 2007)

On Some Performance Indices for Biometric Identification System. - Jay R. Bhatnagar; Ajay Kumar 001 (ICB, 2007)

An Innovative Battery Charger for Safe Charging of NiMH/NiCd Batteries. - Tanvir Singh Mundra; Ajay Kumar 001 (IEEE Trans. Consumer Electron., 2007)

Hand-Geometry Recognition Using Entropy-Based Discretization. - Ajay Kumar 001; David Zhang 001 (IEEE Trans. Inf. Forensics Secur., 2007)

Comparison and combination of iris matchers for reliable personal identification. - Ajay Kumar 001; Arun Passi (CVPR Workshops, 2008)

Incorporating user quality for performance improvement in hand identification. - Ajay Kumar 001; David Zhang 001 (ICARCV, 2008)

Multimodal biometrics management using adaptive score-level combination. - Ajay Kumar 001; Vivek Kanhangad; David Zhang 001 (ICPR, 2008)

Online personal identification in night using multiple face representations. - Ajay Kumar 001; T. Srikanth (ICPR, 2008)

Tongue line extraction. - Laura Li Liu; David Zhang 001; Ajay Kumar 001; Xiangqian Wu 002 (ICPR, 2008)

Incorporating Cohort Information for Reliable Palmprint Authentication. - Ajay Kumar 001 (ICVGIP, 2008)

A New Antispoofing Approach for Biometric Devices. - P. Venkata Reddy; Ajay Kumar 001; S. Rahman; Tanvir Singh Mundra (IEEE Trans. Biomed. Circuits Syst., 2008)

Micro power battery state-of-charge monitor. - Tanvir Singh Mundra; Ajay Kumar 001 (IEEE Trans. Consumer Electron., 2008)

Computer-Vision-Based Fabric Defect Detection: A Survey. - Ajay Kumar 001 (IEEE Trans. Ind. Electron., 2008)

Comments on "An Adaptive Multimodal Biometric Management Algorithm". - Vivek Kanhangad; Ajay Kumar 001; David Zhang 001 (IEEE Trans. Syst. Man Cybern. Part C, 2008)

Combining 2D and 3D hand geometry features for biometric verification. - Vivek Kanhangad; Ajay Kumar 001; David Zhang 001 (CVPR Workshops, 2009)

Development of a New Cryptographic Construct Using Palmprint-Based Fuzzy Vault. - Amioy Kumar; Ajay Kumar 001 (EURASIP J. Adv. Signal Process., 2009)

User Authentication Using Fusion of Face and Palmprint. - Ajay Kumar 001; David Zhang 001 (Int. J. Image Graph., 2009)

On estimating performance indices for biometric identification. - Jay R. Bhatnagar; Ajay Kumar 001 (Pattern Recognit., 2009)

Personal authentication using finger knuckle surface. - Ajay Kumar 001; Ch. Ravikanth (IEEE Trans. Inf. Forensics Secur., 2009)

Personal Authentication Using Hand Vein Triangulation and Knuckle Shape. - Ajay Kumar 001; K. Venkata Prathyusha (IEEE Trans. Image Process., 2009)

Fusion, Rank-Level. - Ajay Kumar 001 (Encyclopedia of Biometrics, 2009)

Anatomy of Hand. - Amioy Kumar; Tanvir Singh Mundra; Ajay Kumar 001 (Encyclopedia of Biometrics, 2009)

Improved palmprint authentication using contactless imaging. - Aythami Morales Moreno; Miguel A. Ferrer; Ajay Kumar 001 (BTAS, 2010)

Contactless palm vein identification using multiple representations. - Yingbo Zhou; Ajay Kumar 001 (BTAS, 2010)

Human hand identification with 3D hand pose variations. - Vivek Kanhangad; Ajay Kumar 001; David Zhang 001 (CVPR Workshops, 2010)

Palmprint recognition using rank level fusion. - Ajay Kumar 001; Sumit Shekhar (ICIP, 2010)

Personal Identification from Iris Images Using Localized Radon Transform. - Yingbo Zhou; Ajay Kumar 001 (ICPR, 2010)

Comparison and combination of iris matchers for reliable personal authentication. - Ajay Kumar 001; Arun Passi (Pattern Recognit., 2010)

Robust palmprint verification using 2D and 3D features. - David Zhang 001; Vivek Kanhangad; Nan Luo; Ajay Kumar 001 (Pattern Recognit., 2010)

A new framework for adaptive multimodal biometrics management. - Ajay Kumar 001; Vivek Kanhangad; David Zhang 001 (IEEE Trans. Inf. Forensics Secur., 2010)

Improving Biometric Authentication Performance From the User Quality. - Ajay Kumar 001; David Zhang 001 (IEEE Trans. Instrum. Meas., 2010)

Contactless fingerprint identification using level zero features. - Ajay Kumar 001; Yingbo Zhou (CVPR Workshops, 2011)

Automated segmentation of iris images using visible wavelength face images. - Chun-Wei Tan; Ajay Kumar 001 (CVPR Workshops, 2011)

Incorporating color information for reliable palmprint authentication. - Aythami Morales; Ajay Kumar 001; Miguel A. Ferrer (ICIP, 2011)

A Unified Framework for Contactless Hand Verification. - Vivek Kanhangad; Ajay Kumar 001; David Zhang 001 (IEEE Trans. Inf. Forensics Secur., 2011)

Human Identification Using Palm-Vein Images. - Yingbo Zhou; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2011)

Contactless and Pose Invariant Biometric Identification Using Hand Surface. - Vivek Kanhangad; Ajay Kumar 001; David Zhang 001 (IEEE Trans. Image Process., 2011)

Personal Identification Using Multibiometrics Rank-Level Fusion. - Ajay Kumar 001; Sumit Shekhar (IEEE Trans. Syst. Man Cybern. Part C, 2011)

Can we use minor finger knuckle images to identify humans? - Ajay Kumar 001 (BTAS, 2012)

Efficient iris segmentation using Grow-Cut algorithm for remotely acquired iris images. - Chun-Wei Tan; Ajay Kumar 001 (BTAS, 2012)

Iris recognition using quaternionic sparse orientation code (QSOC). - Ajay Kumar 001; Tak-Shing Chan (CVPR Workshops, 2012)

Human identification from at-a-distance face images using sparse representation of local iris features. - Ajay Kumar 001; Tak-Shing Chan; Chun-Wei Tan (ICB, 2012)

Human identification from at-a-distance images by simultaneously exploiting iris and periocular features. - Chun-Wei Tan; Ajay Kumar 001 (ICPR, 2012)

Automated human identification using ear imaging. - Ajay Kumar 001; Chenye Wu (Pattern Recognit., 2012)

Reliable ear identification using 2-D quadrature filters. - Tak-Shing Chan; Ajay Kumar 001 (Pattern Recognit. Lett., 2012)

Human Identification Using Finger Images. - Ajay Kumar 001; Yingbo Zhou (IEEE Trans. Image Process., 2012)

Unified Framework for Automated Iris Segmentation Using Distantly Acquired Face Images. - Chun-Wei Tan; Ajay Kumar 001 (IEEE Trans. Image Process., 2012)

Adaptive and localized iris weight map for accurate iris recognition under less constrained environments. - Chun-Wei Tan; Ajay Kumar 001 (BTAS, 2013)

Robust ear identification using sparse representation of local texture descriptors. - Ajay Kumar 001; Tak-Shing Chan (Pattern Recognit., 2013)

Towards Online Iris and Periocular Recognition Under Relaxed Imaging Constraints. - Chun-Wei Tan; Ajay Kumar 001 (IEEE Trans. Image Process., 2013)

Can We Use Second Minor Finger Knuckle Patterns to Identify Humans? - Ajay Kumar 001; Zhihuan Xu (CVPR Workshops, 2014)

Adaptive Security for Human Surveillance Using Multimodal Open Set Biometric Recognition. - Amioy Kumar; Ajay Kumar 001 (ICPR, 2014)

Periocular Recognition Using Unsupervised Convolutional RBM Feature Learning. - Lei Nie; Ajay Kumar 001; Song Zhan (ICPR, 2014)

Integrating ocular and iris descriptors for fake iris image detection. - Chun-Wei Tan; Ajay Kumar 001 (IWBF, 2014)

Importance of Being Unique From Finger Dorsal Patterns: Exploring Minor Finger Knuckle Patterns in Verifying Human Identities. - Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2014)

Efficient and Accurate At-a-Distance Iris Recognition Using Geometric Key-Based Iris Encoding. - Chun-Wei Tan; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2014)

Accurate Iris Recognition at a Distance Using Stabilized Iris Encoding and Zernike Moments Phase Features. - Chun-Wei Tan; Ajay Kumar 001 (IEEE Trans. Image Process., 2014)

An Accurate Iris Segmentation Framework Under Relaxed Imaging Constraints Using Total Variation Model. - Zijing Zhao 001; Ajay Kumar 001 (ICCV, 2015)

Towards Contactless, Low-Cost and Accurate 3D Fingerprint Identification. - Ajay Kumar 001; Cyril Kwong (IEEE Trans. Pattern Anal. Mach. Intell., 2015)

Recovering and matching minutiae patterns from finger knuckle images. - Ajay Kumar 001; Bichai Wang (Pattern Recognit. Lett., 2015)

Fusion, Rank-Level. - Ajay Kumar 001 (Encyclopedia of Biometrics, 2015)

Anatomy of the Hand. - Amioy Kumar; Tanvir Singh Mundra; Ajay Kumar 001 (Encyclopedia of Biometrics, 2015)

On matching cross-spectral periocular images for accurate biometrics identification. - N. Pattabhi Ramaiah; Ajay Kumar 001 (BTAS, 2016)

Improving cross sensor interoperability for fingerprint identification. - Chenhao Lin; Ajay Kumar 001 (ICPR, 2016)

A Cell-Array-Based Multibiometric Cryptosystem. - Amioy Kumar; Ajay Kumar 001 (IEEE Access, 2016)

Interdigital palm region for biometric identification. - Aythami Morales; Ajay Kumar 001; Miguel A. Ferrer (Comput. Vis. Image Underst., 2016)

Adaptive management of multimodal biometrics fusion using ant colony optimization. - Amioy Kumar; Ajay Kumar 001 (Inf. Fusion, 2016)

A 3D Feature Descriptor Recovered from a Single 2D Palmprint Image. - Qian Zheng; Ajay Kumar 001; Gang Pan 001 (IEEE Trans. Pattern Anal. Mach. Intell., 2016)

Personal Identification Using Minor Knuckle Patterns From Palm Dorsal Surface. - Ajay Kumar 001; Zhihuan Xu (IEEE Trans. Inf. Forensics Secur., 2016)

Suspecting Less and Doing Better: New Insights on Palmprint Identification for Faster and More Accurate Matching. - Qian Zheng; Ajay Kumar 001; Gang Pan 001 (IEEE Trans. Inf. Forensics Secur., 2016)

Multi-Siamese networks to accurately match contactless to contact-based fingerprint images. - Chenhao Lin; Ajay Kumar 001 (IJCB, 2017)

Towards More Accurate Iris Recognition Using Deeply Learned Spatially Corresponding Features. - Zijing Zhao 001; Ajay Kumar 001 (ICCV, 2017)

Accurate Periocular Recognition Under Less Constrained Environment Using Semantics-Assisted Convolutional Neural Network. - Zijing Zhao 001; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2017)

Toward More Accurate Iris Recognition Using Cross-Spectral Matching. - Pattabhi Ramaiah Nalla; Ajay Kumar 001 (IEEE Trans. Image Process., 2017)

Advancing Surface Feature Encoding and Matching for More Accurate 3D Biometric Recognition. - Kevin H. M. Cheng; Ajay Kumar 001 (ICPR, 2018)

Contactless 3D fingerprint identification without 3D reconstruction. - Qian Zheng; Ajay Kumar 001; Gang Pan 001 (IWBF, 2018)

A Deep Learning based Framework to Detect and Recognize Humans using Contactless Palmprints in the Wild. - Yang Liu; Ajay Kumar 001 (CoRR, 2018)

Tetrahedron Based Fast 3D Fingerprint Identification Using Colored LEDs Illumination. - Chenhao Lin; Ajay Kumar 001 (IEEE Trans. Pattern Anal. Mach. Intell., 2018)

Contactless and partial 3D fingerprint recognition using multi-view deep representation. - Chenhao Lin; Ajay Kumar 001 (Pattern Recognit., 2018)

Improving Periocular Recognition by Explicit Attention to Critical Regions in Deep Neural Network. - Zijing Zhao 001; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2018)

Matching Contactless and Contact-Based Conventional Fingerprint Images for Biometrics Identification. - Chenhao Lin; Ajay Kumar 001 (IEEE Trans. Image Process., 2018)

Contactless 3D Fingerprint Identification - Ajay Kumar 001 (Springer, 2018)

Multibiometrics User Recognition using Adaptive Cohort Ranking. - Abhinav Anand; Amioy Kumar; Ajay Kumar 001 (ICB, 2019)

Cross-spectral iris recognition using CNN and supervised discrete hashing. - Kuo Wang; Ajay Kumar 001 (Pattern Recognit., 2019)

A deep learning based unified framework to detect, segment and recognize irises using spatially corresponding features. - Zijing Zhao 001; Ajay Kumar 001 (Pattern Recognit., 2019)

Finger vein identification using Convolutional Neural Network and supervised discrete hashing. - Cihui Xie; Ajay Kumar 001 (Pattern Recognit. Lett., 2019)

Toward Pose Invariant and Completely Contactless Finger Knuckle Recognition. - Ajay Kumar 001 (IEEE Trans. Biom. Behav. Identity Sci., 2019)

Toward More Accurate Matching of Contactless Palmprint Images Under Less Constrained Environments. - Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2019)

A CNN-Based Framework for Comparison of Contactless to Contact-Based Fingerprints. - Chenhao Lin; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2019)

Toward More Accurate Iris Recognition Using Dilated Residual Features. - Kuo Wang; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2019)

Revisiting Outlier Rejection Approach for Non-Lambertian Photometric Stereo. - Kevin H. M. Cheng; Ajay Kumar 001 (IEEE Trans. Image Process., 2019)

Numerical Reflectance Compensation for Non-Lambertian Photometric Stereo. - Qian Zheng; Ajay Kumar 001; Boxin Shi; Gang Pan 001 (IEEE Trans. Image Process., 2019)

Distinctive Feature Representation for Contactless 3D Hand Biometrics using Surface Normal Directions. - Kevin H. M. Cheng; Ajay Kumar 001 (IJCB, 2020)

Segmentation-Aware and Adaptive Iris Recognition. - Kuo Wang; Ajay Kumar 001 (CoRR, 2020)

Contactless Biometric Identification Using 3D Finger Knuckle Patterns. - Kevin H. M. Cheng; Ajay Kumar 001 (IEEE Trans. Pattern Anal. Mach. Intell., 2020)

Contactless Palmprint Identification Using Deeply Learned Residual Features. - Yang Liu; Ajay Kumar 001 (IEEE Trans. Biom. Behav. Identity Sci., 2020)

Towards More Accurate Contactless Fingerprint Minutiae Extraction and Pose-Invariant Matching. - Hanzhuo Tan; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2020)

Efficient and Accurate 3D Finger Knuckle Matching Using Surface Key Points. - Kevin H. M. Cheng; Ajay Kumar 001 (IEEE Trans. Image Process., 2020)

Accurate 3D Finger Knuckle Recognition Using Auto-Generated Similarity Functions. - Kevin H. M. Cheng; Ajay Kumar 001 (IEEE Trans. Biom. Behav. Identity Sci., 2021)

Deep Feature Collaboration for Challenging 3D Finger Knuckle Identification. - Kevin H. M. Cheng; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2021)

Minutiae Attention Network With Reciprocal Distance Loss for Contactless to Contact-Based Fingerprint Identification. - Hanzhuo Tan; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2021)

Periocular-Assisted Multi-Feature Collaboration for Dynamic Iris Recognition. - Kuo Wang; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2021)

Think Twice Before Detecting GAN-generated Fake Images from their Spectral Domain Imprints. - Chengdong Dong; Ajay Kumar 001; Eryun Liu (CVPR, 2022)

A Characteristic Function-Based Method for Bottom-Up Human Pose Estimation. - Haoxuan Qu; Yujun Cai; Lin Geng Foo; Ajay Kumar 001; Jun Liu 036 (CVPR, 2023)

Detecting Locally, Patching Globally: An End-to-End Framework for High Speed and Accurate Detection of Fingerprint Minutiae. - Yulin Feng; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2023)

Completely Contactless and Online Finger Knuckle Identification for Real World Applications. - Zhenyu Zhou 003; Ajay Kumar 001 (IEEE J. Sel. Top. Signal Process., 2023)

BEST: Building evidences from scattered templates for accurate contactless palmprint recognition. - Yulin Feng; Ajay Kumar 001 (Pattern Recognit., 2023)

Synthesis of Multi-View 3D Fingerprints to Advance Contactless Fingerprint Identification. - Chengdong Dong; Ajay Kumar 001 (IEEE Trans. Pattern Anal. Mach. Intell., 2023)

Towards More Accurate Fake Detection on Images Generated from Advanced Generative and Neural Rendering Models. - Chengdong Dong; Vijayakumar Bhagavatula; Zhenyu Zhou 003; Ajay Kumar 001 (CoRR, 2024)

Finger-Knuckle Assisted Slap Fingerprint Identification System for Higher Security and Convenience. - Zhenyu Zhou 003; Ajay Kumar 001 (IEEE Trans. Inf. Forensics Secur., 2024)

Towards Explainable and Unprecedented Accuracy in Matching Challenging Finger Crease Patterns. - Zhenyu Zhou 003; Chengdong Dong; Ajay Kumar 001 (CVPR, 2025)

Insights on 'Complex-Valued Iris Recognition Network'. - Ajay Kumar 001 (IEEE Trans. Pattern Anal. Mach. Intell., 2025)

A Mixed-Primitive-based Gaussian Splatting Method for Surface Reconstruction. - Haoxuan Qu; Yujun Cai; Hossein Rahmani 001; Ajay Kumar 001; Junsong Yuan 001; Jun Liu 036 (CoRR, 2025)

Bridging Dimensions in Fingerprints to Advance Distinctiveness: Recovering 3D Minutiae From a Single Contactless 2D Fingerprint Image. - Chengdong Dong; Ajay Kumar 001 (IEEE Trans. Pattern Anal. Mach. Intell., 2025)