Multi-modal video search by examples - A video quality impact analysis - Guanfeng Wu; Abbas Haider; Xing Tian; Erfan Loweimi; Chi-Ho Chan; Mengjie Qian; Muhammad Junaid Awan; Ivor T. A. Spence; Rob Cooper; Wing W. Y. Ng; Josef Kittler; Mark J. F. Gales; et al. (IET Comput. Vis., 2024)

NPT-Loss: Demystifying Face Recognition Losses With Nearest Proxies Triplet - Syed Safwan Khalid; Muhammad Awais; Zhenhua Feng; Chi-Ho Chan; Ammarah Farooq; Ali Akbari; Josef Kittler (IEEE Trans. Pattern Anal. Mach. Intell., 2023)

NPT-Loss: A Metric Loss with Implicit Mining for Face Recognition - Syed Safwan Khalid; Muhammad Awais; Chi-Ho Chan; Zhenhua Feng; Ammarah Farooq; Ali Akbari; Josef Kittler (CoRR, 2021)

Resolution Invariant Face Recognition Using a Distillation Approach - Syed Safwan Khalid; Muhammad Awais; Zhenhua Feng; Chi-Ho Chan; Ammarah Farooq; Ali Akbari; Josef Kittler (IEEE Trans. Biom. Behav. Identity Sci., 2020)

Angular Sparsemax for Face Recognition - Chi-Ho Chan; Josef Kittler (25th International Conference on Pattern Recognition, ICPR 2020, Virtual Event / Milan, Italy, January 10-15, 2021, 2020)

Efficient 3D morphable face model fitting - Guosheng Hu; Fei Yan; Josef Kittler; William J. Christmas; Chi-Ho Chan; Zhenhua Feng; Patrik Huber (Pattern Recognit., 2017)

Unconstrained Face Detection and Open-Set Face Recognition Challenge - Manuel Günther; Peiyun Hu; Christian Herrmann; Chi-Ho Chan; Min Jiang; Shufan Yang; Akshay Raj Dhamija; Deva Ramanan; Jürgen Beyerer; Josef Kittler; Mohamad Al Jazaery; Mohammad Iqbal Nouyed; et al. (2017 IEEE International Joint Conference on Biometrics, IJCB 2017, Denver, CO, USA, October 1-4, 2017, 2017)

Unconstrained Face Detection and Open-Set Face Recognition Challenge - Manuel Günther; Peiyun Hu; Christian Herrmann; Chi-Ho Chan; Min Jiang; Shufan Yang; Akshay Raj Dhamija; Deva Ramanan; Jürgen Beyerer; Josef Kittler; Mohamad Al Jazaery; Mohammad Iqbal Nouyed; et al. (CoRR, 2017)

Face Recognition Using a Unified 3D Morphable Model - Guosheng Hu; Fei Yan; Chi-Ho Chan; Weihong Deng; William J. Christmas; Josef Kittler; Neil Martin Robertson (Computer Vision - ECCV 2016 - 14th European Conference, Amsterdam, The Netherlands, October 11-14, 2016, Proceedings, Part VIII, 2016)

Algorithm to estimate biometric performance change over time - Norman Poh; Josef Kittler; Chi-Ho Chan; Medha Pandit (IET Biom., 2015)

Full ranking as local descriptor for visual recognition: A comparison of distance metrics on s\(_n\) - Chi-Ho Chan; Fei Yan; Josef Kittler; Krystian Mikolajczyk (Pattern Recognit., 2015)

Generalizing DET Curves Across Application Scenarios - Norman Poh; Chi-Ho Chan (IEEE Trans. Inf. Forensics Secur., 2015)

Robust face recognition by an albedo based 3D morphable model - Guosheng Hu; Chi-Ho Chan; Fei Yan; William J. Christmas; Josef Kittler (IEEE International Joint Conference on Biometrics, Clearwater, IJCB 2014, FL, USA, September 29 - October 2, 2014, 2014)

Photometric Normalization for Face Recognition using Local discrete cosine Transform - Heydi Mendez Vazquez; Josef Kittler; Chi-Ho Chan; Edel B. García Reyes (Int. J. Pattern Recognit. Artif. Intell., 2013)

Multiscale Local Phase Quantization for Robust Component-Based Face Recognition Using Kernel Fusion of Multiple Descriptors - Chi-Ho Chan; Muhammad Atif Tahir; Josef Kittler; Matti Pietikäinen (IEEE Trans. Pattern Anal. Mach. Intell., 2013)

State-of-the-Art LBP Descriptor for Face Recognition - Chi-Ho Chan; Josef Kittler; Norman Poh (Local Binary Patterns: New Variants and Applications, 2013)

Local Ordinal Contrast Pattern Histograms for Spatiotemporal, Lip-Based Speaker Authentication - Chi-Ho Chan; Budhaditya Goswami; Josef Kittler; William J. Christmas (IEEE Trans. Inf. Forensics Secur., 2012)

Resolution-Aware 3D Morphable Model - Guosheng Hu; Chi-Ho Chan; Josef Kittler; Bill Christmas (British Machine Vision Conference, BMVC 2012, Surrey, UK, September 3-7, 2012, 2012)

Blur kernel estimation to improve recognition of blurred faces - Chi-Ho Chan; Josef Kittler (19th IEEE International Conference on Image Processing, ICIP 2012, Lake Buena Vista, Orlando, FL, USA, September 30 - October 3, 2012, 2012)

An intrinsic coordinate system for 3D face registration - W. P. Koppen; Chi-Ho Chan; William J. Christmas; Josef Kittler (Proceedings of the 21st International Conference on Pattern Recognition, ICPR 2012, Tsukuba, Japan, November 11-15, 2012, 2012)

Speaker authentication using video-based lip information - Budhaditya Goswami; Chi-Ho Chan; Josef Kittler; William J. Christmas (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011, May 22-27, 2011, Prague Congress Center, Prague, Czech Republic, 2011)

Evaluation of face recognition system in heterogeneous environments (visible vs NIR) - Debaditya Goswami; Chi-Ho Chan; David Windridge; Josef Kittler (IEEE International Conference on Computer Vision Workshops, ICCV 2011 Workshops, Barcelona, Spain, November 6-13, 2011, 2011)

Face recognition using multi-scale local phase quantisation and Linear Regression Classifier - Muhammad Atif Tahir; Chi-Ho Chan; Josef Kittler; Ahmed Bouridane (18th IEEE International Conference on Image Processing, ICIP 2011, Brussels, Belgium, September 11-14, 2011, 2011)

Kernel-based Speaker Verification Using Spatiotemporal Lip Information - Chi-Ho Chan; Budhaditya Goswami; Josef Kittler; William J. Christmas (Proceedings of the IAPR Conference on Machine Vision Applications (IAPR MVA 2011), Nara Centennial Hall, Nara, Japan, June 13-15, 2011, 2011)

An Evaluation of Video-to-Video Face Verification - Norman Poh; Chi-Ho Chan; Josef Kittler; Sébastien Marcel; Chris McCool; Enrique Argones-Rúa; José Luis Alba-Castro; Mauricio Villegas; Roberto Paredes; Vitomir Struc; Nikola Pavesic; Albert Ali Salah; et al. (IEEE Trans. Inf. Forensics Secur., 2010)

Local Ordinal Contrast Pattern histograms for spatiotemporal, lip-based speaker authentication - Budhaditya Goswami; Chi-Ho Chan; Josef Kittler; Bill Christmas (Fourth IEEE International Conference on Biometrics: Theory Applications and Systems, BTAS 2010, Washington, DC, USA, 27-29 September, 2010, 2010)

On Combining Local DCT with Preprocessing Sequence for Face Recognition under Varying Lighting Conditions - Heydi Mendez Vazquez; Josef Kittler; Chi-Ho Chan; Edel B. García Reyes (Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications - 15th Iberoamerican Congress on Pattern Recognition, CIARP 2010, Sao Paulo, Brazil, November 8-11, 2010. Proceedings, 2010)

Sparse representation of (Multiscale) histograms for face recognition robust to registration and illumination problems - Chi-Ho Chan; Josef Kittler (Proceedings of the International Conference on Image Processing, ICIP 2010, September 26-29, Hong Kong, China, 2010)

On the Results of the First Mobile Biometry (MOBIO) Face and Speaker Verification Evaluation - Sébastien Marcel; Chris McCool; Pavel Matejka; Timo Ahonen; Jan Cernocký; Shayok Chakraborty; Vineeth Nallure Balasubramanian; Sethuraman Panchanathan; Chi-Ho Chan; Josef Kittler; Norman Poh; Benoit G. B. Fauve; et al. (Recognizing Patterns in Signals, Speech, Images and Videos - ICPR 2010 Contests, Istanbul, Turkey, August 23-26, 2010, Contest Reports, 2010)

Kernel Fusion of Multiple Histogram Descriptors for Robust Face Recognition - Chi-Ho Chan; Josef Kittler; Muhammad Atif Tahir (Structural, Syntactic, and Statistical Pattern Recognition, Joint IAPR International Workshop, SSPR&SPR 2010, Cesme, Izmir, Turkey, August 18-20, 2010. Proceedings, 2010)

Face Video Competition - Norman Poh; Chi-Ho Chan; Josef Kittler; Sébastien Marcel; Christopher McCool; Enrique Argones-Rúa; José Luis Alba-Castro; Mauricio Villegas; Roberto Paredes; Vitomir Struc; Nikola Pavesic; Albert Ali Salah; et al. (Advances in Biometrics, Third International Conference, ICB 2009, Alghero, Italy, June 2-5, 2009. Proceedings, 2009)

(Multiscale) Local Phase Quantisation histogram discriminant analysis with score normalisation for robust face recognition - Chi-Ho Chan; Josef Kittler; Norman Poh; Timo Ahonen; Matti Pietikäinen (12th IEEE International Conference on Computer Vision Workshops, ICCV Workshops 2009, Kyoto, Japan, September 27 - October 4, 2009, 2009)

Multi-scale local Binary Pattern Histogram for Face Recognition - Chi-Ho Chan (University of Surrey, Guildford, UK, 2008)

Multi-scale Local Binary Pattern Histograms for Face Recognition - Chi-Ho Chan; Josef Kittler; Kieron Messer (Advances in Biometrics, International Conference, ICB 2007, Seoul, Korea, August 27-29, 2007, Proceedings, 2007)

MouthType: text entry by hand and mouth - Michael J. Lyons; Chi-Ho Chan; Nobuji Tetsutani (Extended abstracts of the 2004 Conference on Human Factors in Computing Systems, CHI 2004, Vienna, Austria, April 24 - 29, 2004, 2004)

Mouthbrush: drawing and painting by hand and mouth - Chi-Ho Chan; Michael J. Lyons; Nobuji Tetsutani (Proceedings of the 5th International Conference on Multimodal Interfaces, ICMI 2003, Vancouver, British Columbia, Canada, November 5-7, 2003, 2003)

Vital signs: exploring novel forms of body language - Michael J. Lyons; Daniel Kluender; Chi-Ho Chan; Nobuji Tetsutani (Proceedings of the SIGGRAPH 2003 Conference on Sketches & Applications: in conjunction with the 30th annual conference on Computer graphics and interactive techniques, 2003, San Diego, California, USA, July 27-31, 2003, 2003)

Address predictive color quantization image compression for multimedia applications - Lai-Man Po; Wen-Tao Tan; Chi-Ho Chan (Proceedings of ICASSP '94: IEEE International Conference on Acoustics, Speech and Signal Processing, Adelaide, South Australia, Australia, April 19-22, 1994, 1994)