Journal Papers

D. Chen and J. Yang, "Robust Object Tracking Via Online Spatial Bias Appearance Model Learning", in IEEE Transactions on Pattern Analysis and Machine Intelligence Dec. 2007.

D. Chen, Q. Liu, M. Sun and J. Yang, “Mining Appearance Models Directly from Compressed Video”, to appear in IEEE Transactions on  Multimedia.

D. Chen, Y. Chang, R. Yan and J. Yang, “Tools for Protecting The Priavcy of Specific Individuals in Video”, to appear in EURASIP Journal on Applied Signal Processing special issue on Signal Processing Technologies for Ambient Intelligence in Home-Care Applications.

D. Chen, J. Yang, R. Malkin, H. D. Wactlar, “Detecting Social Interaction of Elderly in a Nursing Home Environment”, in the ACM Transactions on Multimedia Computing, Communication and Application, Feb. 2007.

D. Chen and J-M. Odobez, “Video Text Recognition Error Reduction Using ROVER”, Pattern Recognition Letters, vol. 26(9), pp:1386-1403, 2005.

D. Chen, J-M. Odobez and J-P. Thiran, “Monte Carlo Video Text Segmentation", International Journal of Pattern Recognition and Artificial Intelligence, vol. 5(19), pp: 647-661, 2005.

D. Chen, J-M. Odobez, and H. Bourlard, “Text Detection and Recognition in Images and Video Frames", Pattern Recognition, vol. 3(37) pp: 595-608, 2004.

D. Chen, J-M. Odobez and J-P. Thiran, “A Localization/Verification Scheme for Finding Text in Images and Videos Based on Contrast Independent Features and Machine Learning Methods", Signal Processing: Image Communication, vol. 3(19), pp: 205-217, 2004.


Conference and Workshop Papers

D. Chen, “Modeling vs. Segmenting Images Using A Probabilistic Approach”, in Proceedings of IEEE International Conference on Image Processing 2007.

D. Chen, A. Bharucha, and H. Wactlar, “People Identification through Ambient Camera Networks”, International Conference on Multimedia and Ambient Intelligence 2007.

D. Chen, A. Bharucha, and H. Wactlar, “Intelligent Monitoring to Improve Safety of Older Persons”, EMBC 2007.

D. Chen, Q. Liu, M. Sun and J. Yang, “Mining Appearance Models Directly from Compressed Video”, in Proceedings of the12th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining. August 20-23, 2006, Philadelphia, PA, USA .

R. Malkin, D. Chen, J. Yang, A. Waibel, “Multimodal Estimation of User Interruptibility for Smart Mobile Telephones”, in Proceedings of ACM International Conference on Multimodal Interface, 2006.

D. Chen and J. Yang, “Exploiting High Dimensional Video Features Using Layered Gaussian Mixture Models”, in Proceedings of IAPR International Conference on Pattern Recognition, 2006.

D. Liu, D. Chen and T. Chen, “Latent Layout Analysis for Discovering Objects in Images”, in Proceedings of IAPR International Conference on Pattern Recognition, 2006.

D. Liu, D. Chen and T. Chen, “Unsupervised Image Layout Extraction”, in Proceedings of IEEE Conference on Image Processing, 2006.

A. J. Bharucha, C. Atkeson, S. Stevens, D. Chen, H. Wactlar, B. Pollock, M. A. Dew, “CareMedia: Automated Video and Sensor Analysis for Geriatric Care”, in Proceedings of Annual Meeting of the American Association for Geriatric Psychiatry, San Juan, Puerto Rico, March 12, 2006.

Q. Liu, D. Chen, M. Sun and R. J. Sclabassi, “Specialized Video and Physiological Data Coding System for Remote Monitoring”, in Proceedings of IEEE Conference on Multimedia Expo, 2006.

R. Malkin, D. Chen, and J. Yang, “Directing Attention in Online Aggregate Sensor Streams via Auditory Blind Value Assignment”, in Proceedings of IEEE Conference on Multimedia Expo, 2006.

Y. Chang, R. Yan, D. Chen, and J. Yang, “People Identification with Limited Labels in Privacy-Protected Video”, in Proceedings of IEEE Conference on Multimedia Expo, 2006.

D. Chen and J. Yang, "Image Registration in Uncalibrated Omnidirectional Camera Network", in Proceedings of IEEE Workshop on Applications of Computer Vision, 2005.

A.J. Bharucha, D. Chen, H. Wactlar, S. Stevens, C. Atkeson, M.A. Dew, B.G. Pollock, “CareMedia: Automated Video and Sensor Analysis for Geriatric Care”, in Proceedings of the WPIC research day, University of Pittsburgh School of Medicine 2005.

D. Chen, J. Yang and H. Wactlar, “A Study of Detecting Social Interaction in a Nursing Home Environment”, in Proceedings of International Conference on Computer Vision workshop on Human-Computer Interaction, 2005.

S. Stevens, A. Bharucha, M. Christel, H. Wactlar, C. Atkeson, D. Chen, A. Hauptmann, J. Yang, “Continuous Audiovisual Capture of Behavior in a Dementia Unit: Recruitment and Ethical Issues in Biopsychosocial Research”, in Proceedings of Annual Meeting of the Gerontological Society of America, Orlando, FL, Nov. 18-22, 2005 .

W. Wu, D. Chen, J. Yang, “Integrating Co-training and Recognition for Text Detection in Images”, in Proceedings of IEEE Conference on Multimedia Expo, 2005.

D. Chen and J. Yang, “Online Learning Region Confidences for Object Tracking”, in Proceedings of International Conference on Computer Vision workshop on Video Surveillance Performance Evaluation of Tracking and Surveillance, 2005.

W. Wang, D. Chen, W. Gao and J. Yang , “Modeling Background from Compressed Video”, in Proceedings of International Conference on Computer Vision workshop on Video Surveillance Performance Evaluation of Tracking and Surveillance, 2005.

D. Chen, J. Yang, H. Wactlar, "Towards Automatic Analysis of Social Interaction Patterns in a Nursing Home Environment from Video", in Proceedings of 6th ACM SIGMM International Workshop on Multimedia Information Retrieval(MIR 2004), 2004.

D. Chen, R. Malkin, J. Yang, "Multimodal Detection of Human Interaction Events in a Nursing Home Environment", in Proceedings of ACM International Conference on Multimodal Interface, 2004.

H. D. Wactlar, M. Christel, A. Hauptmann, D. Chen, J. Yang, "Infrastructure for Machine Understanding of Video Observations in Skilled Care Facilities - Implications of Early Results from CareMedia Case Studies", In Proceedings of UbiHealth 2004.

D. Chen and J-M. Odobez, "Sequential Monte Carlo Video Text Segmentation", in Proceedings of International Conference on Image Processing, 2003.

D. Chen, J-M. Odobez, and H. Bourlard, "Text Segmentation and Recognition in Complex Background Based on Markov Random Field", in Proceedings of International Conference on Pattern Recognition, 2002.

J-M. Odobez and D. Chen, "Video Text Recognition Based on Markov Random Field and grayscale consistency constraint", in Proceedings of International Conference on Image Processing, 2002.

D. Chen, H. Bourlard, and J-P. Thiran, "Text identification in complex background using SVM", in Proceedings of IEEE Computer Vision and Pattern Recognition, 2001.

D. Chen, K. Shearer, and H. Bourlard, "Text enhancement with asymmetric filter for video OCR", in Proceedings of the 11th International Conference on Image Analysis and Processing, 2001.

D. Chen, K. Shearer, and H. Bourlard, "Video OCR for sport video annotation and retrieval", in Proceedings of the 8th IEEE International Conference on Mechatronics and Machine Vision in Practice, 2001.

D. Chen and J. Luettin, "Multiple hypothesis Video OCR", in Proceedings of the 4th IAPR workshop on Document Analysis System, 2000.

D. Chen, H. Gellerson, "Cognition Based Collaboration Log for CSCW", in Proceedings of International Conference on Cognitive Science, 1999

D. Chen, A. Schmidt, H. Gellerson, "An Architecture for Multi-Sensor Fusion in Mobile Environments", in Proceedings of International Conference on Information Fusion, 1999

D. Chen, H. Gellerson, "Recognition and Reasoning in an Awareness Support system for Generation of Storyboard-like Views of Recent Activity", in Proceedings of ACM International Conference on Supporting Group Work (ACM SIGGROUP), 1999

F. Wu, W. Gao, Y. Xiang, and D. Chen, "On-line sprite encoding with large global motion estimation", in Proceedings of IEEE Conference on Data Compression, 1998.

F. Wu, W. Gao, and D. Chen, “MPEG-4 Audio Encoding”, in Proceedings of the 5th conference on Human Computer and Speech Communication, pp357-361 ,July 1998.

D. Chen, W. Gao, X. Chen, "A New Approach to Recover 3D Shape Based on Structure-Lighting", in Proceedings of IEEE International Conference on Signal Processing, 1996.

D. Chen, W. Gao, X. Chen, "Build Perception Model To Multimodal Interface", in Proceedings of International Conference on Multimodal Interface, 1996.


Technical Reports

D. Chen, X. Chen and J. Yang, "A Framework for Object Tracking Using Spatial-Temporal Markov Random Field", 2004.

D. Chen and J-M. Odobez, “A new method of contrast normalization for verification of extracted video text having complex backgrounds”, RR-02-16, IDIAP, Nov. 08 2002.

D. Chen and J-M. Odobez, “Comparison of support vector machine and neural network for text texture verification”, RR-02-19, IDIAP, Apr. 12 2002.

D. Chen and J. Luettin, “A survey of text detection and recognition in images and videos”, RR-00-38, IDIAP, Aug. 2000.