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Action! Improved Action Recognition and Localization in Video

Stan Sclaroff, Boston University

Wednesday, February 26, 2014

10 AM

Room 442 Dana

 

Action! Improved Action Recognition and Localization in Video

 

 Abstract:

The Web images and video present a rich, diverse - and challenging - resource for learning and testing models of human actions.  In the first part of this talk, I will describe an unsupervised
method for learning human action models. The approach is unsupervised in the sense that it requires no human intervention other than the action keywords to be used to form text queries to Web image and video search engines; thus, we can easily extend the vocabulary of actions, by simply making additional search engine queries.  In the second part of this talk, I will describe a Multiple Instance Learning framework for exploiting properties of the scene, objects, and humans in video to gain improved action classification.  In the third part of this talk, I will describe a new representation for action recognition and localization, Hierarchical Space-Time Segments, which is helpful in both recognition and localization of actions in video. An unsupervised method is proposed that can generate this representation from video, which extracts both static and non-static relevant space-time segments, and also preserves their hierarchical and temporal relationships.

 

This work was conducted in collaboration with Shugao Ma and Jianming Zhang (Boston U), and Nazli Ikizler Cinbis  (Hacettepe University).

 

 Bio:

Stan Sclaroff founded the Image and Video Computing research group. He received the PhD degree from MIT in 1995. In 1996, he received an ONR Young Investigator Award and an NSF Faculty Early Career Development Award. Professor Sclaroff has coauthored numerous scholarly publications in the areas of tracking, video-based analysis of human motion and gesture, surveillance, deformable shape matching and recognition, as well as image/video database indexing, retrieval and data mining methods. He has served on the technical program committees of over 60 computer vision conferences and workshops. Stan Sclaroff has served as an Associate Editor for IEEE Transactions on Pattern Analysis, 2000-2004, and 2006-present. He is a Senior Member of the IEEE.

 

Host:  Prof Octavia Camps

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