Activity Recognition
Paper: ACM IWVSSN (2006) on “Unsupervised Analysis of Activity Sequences Using Event Motifs”
R. Hamid, S. Maddi, A. Bobick, I. Essa. “Unsupervised Analysis of Activity Sequences Using Event Motifs”, In proceedings of 4th ACM International Workshop on Video Surveillance and Sensor Networks (in conjunction with ACM Multimedia 2006). Abstract We present an unsupervised framework to discover characterizations of everyday human activities, and demonstrate how such representations can be […]
Paper: IEEE ISWC (2006) "Discovering Characteristic Actions from On-Body Sensor Data"
Discovering Characteristic Actions from On-Body Sensor Data (IEEEXplore) Minnen, D. Starner, T. Essa, I. Isbell, C. College of Computing, Georgia Institute of Technology, Atlanta, GA 30332 USA. This paper appears in: Wearable Computers, 2006 10th IEEE International Symposium on Publication Date: Oct. 2006 On page(s): 11 – 18 Number of Pages: 11 – 18 Location: […]
Paper: IEEE CVPR (2006) on “Learning Temporal Sequence Model from Partially Labeled Data”
Yifan Shi, Bobick, A. Essa, I. (2006), “Learning Temporal Sequence Model from Partially Labeled Data” Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2006 Volume: 2, page(s): 1631 – 1638, ISSN: 1063-6919, ISBN: 0-7695-2597-0, Digital Object Identifier: 10.1109/CVPR.2006.174 [IEEEXplore] Abstract Graphical models are often used to represent and recognize activities. Purely […]
Paper: IEEE CVPR (2005) "Tracking multiple objects through occlusions"
Huang, Y and Essa, I. (2005) “Tracking multiple objects through occlusions”, In Proceedings of IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2005 (CVPR 2005), Volume: 2 page(s): 1051 – 1058 vol. 2, ISSN: 1063-6919, ISBN: 0-7695-2372-2, INSPEC Accession Number:8633324 DOI: 10.1109/CVPR.2005.350, [IEEEXplore#] 20-25 June 2005 ABSTRACT We present an approach for tracking […]
Talk at USC's IRIS (2004): "Temporal Reasoning from Video to Temporal Synthesis of Video"
Irfan Essa (2004), “Temporal Reasoning from Video to Temporal Synthesis of Video” Talk at USC’s IRIS-Vision Seminars (Fall 2004). Temporal Reasoning from Video to Temporal Synthesis of Video Abstract In this talk, I will present some ongoing work on extracting spatio-temporal cues from video for both synthesis of novel video sequences, and recognition of complex […]
Paper: IEEE CVPR (2004) "Propagation networks for recognition of partially ordered sequential action"
Yifan Shi, Yan Huang, Minnen, D., Bobick, A., Essa, I. (2004), “Propagation networks for recognition of partially ordered sequential action” In Proceedings of the 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2004 (CVPR 2004). Volume: 2, page(s): II-862 – II-869 Vol.2, ISSN: 1063-6919, ISBN: 0-7695-2158-4, INSPEC Accession Number:8161557, Digital Object Identifier: […]
Paper AAAI (2002): "Recognizing Multitasked Activities from Video using Stochastic Context-Free Grammar"
D. Moore and I. Essa (2002). “Recognizing multitasked activities from video using stochastic context-free grammar”, in Proceedings of AAAI 2002. [PDF | Project Site] Abstract In this paper, we present techniques for recognizing com- plex, multitasked activities from video. Visual information like image features and motion appearances, combined with domain-specific information, like object context is […]
Talk: Invited Speaker at CMU's Robotics Institute (2002): "Temporal Reasoning from Video to Temporal Synthesis of Video"
Irfan Essa, “Temporal Reasoning from Video to Temporal Synthesis of Video” CMU’s Robotics Institute: Seminar, February 15, 2002 Temporal Reasoning from Video to Temporal Synthesis of Video Abstract In this talk, I will present some ongoing work on extracting spatio-temporal cues from video for both synthesis of novel video sequences, and recognition of complex activities. […]