Activity Representation Using 3D Shape Models
<p>Abstract</p> <p>We present a method for characterizing human activities using 3D deformable shape models. The motion trajectories of points extracted from objects involved in the activity are used to build models for each activity, and these models are used for classification an...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2008-01-01
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| Series: | EURASIP Journal on Image and Video Processing |
| Online Access: | http://jivp.eurasipjournals.com/content/2008/347050 |
| _version_ | 1819080866310127616 |
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| author | Roy-Chowdhury AmitK Akdemir Umut Abdelkader MohamedF Chellappa Rama |
| author_facet | Roy-Chowdhury AmitK Akdemir Umut Abdelkader MohamedF Chellappa Rama |
| author_sort | Roy-Chowdhury AmitK |
| collection | DOAJ |
| description | <p>Abstract</p> <p>We present a method for characterizing human activities using 3D deformable shape models. The motion trajectories of points extracted from objects involved in the activity are used to build models for each activity, and these models are used for classification and detection of unusual activities. The deformable models are learnt using the factorization theorem for nonrigid 3D models. We present a theory for characterizing the degree of deformation in the 3D models from a sequence of tracked observations. This degree, termed as deformation index (DI), is used as an input to the 3D model estimation process. We study the special case of ground plane activities in detail because of its importance in video surveillance applications. We present results of our activity modeling approach using videos of both high-resolution single individual activities and ground plane surveillance activities.</p> |
| first_indexed | 2024-12-21T19:51:41Z |
| format | Article |
| id | doaj.art-6bf045858c53470b899b1e85685581f9 |
| institution | Directory Open Access Journal |
| issn | 1687-5176 1687-5281 |
| language | English |
| last_indexed | 2024-12-21T19:51:41Z |
| publishDate | 2008-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Image and Video Processing |
| spelling | doaj.art-6bf045858c53470b899b1e85685581f92022-12-21T18:52:11ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-51761687-52812008-01-0120081347050Activity Representation Using 3D Shape ModelsRoy-Chowdhury AmitKAkdemir UmutAbdelkader MohamedFChellappa Rama<p>Abstract</p> <p>We present a method for characterizing human activities using 3D deformable shape models. The motion trajectories of points extracted from objects involved in the activity are used to build models for each activity, and these models are used for classification and detection of unusual activities. The deformable models are learnt using the factorization theorem for nonrigid 3D models. We present a theory for characterizing the degree of deformation in the 3D models from a sequence of tracked observations. This degree, termed as deformation index (DI), is used as an input to the 3D model estimation process. We study the special case of ground plane activities in detail because of its importance in video surveillance applications. We present results of our activity modeling approach using videos of both high-resolution single individual activities and ground plane surveillance activities.</p>http://jivp.eurasipjournals.com/content/2008/347050 |
| spellingShingle | Roy-Chowdhury AmitK Akdemir Umut Abdelkader MohamedF Chellappa Rama Activity Representation Using 3D Shape Models EURASIP Journal on Image and Video Processing |
| title | Activity Representation Using 3D Shape Models |
| title_full | Activity Representation Using 3D Shape Models |
| title_fullStr | Activity Representation Using 3D Shape Models |
| title_full_unstemmed | Activity Representation Using 3D Shape Models |
| title_short | Activity Representation Using 3D Shape Models |
| title_sort | activity representation using 3d shape models |
| url | http://jivp.eurasipjournals.com/content/2008/347050 |
| work_keys_str_mv | AT roychowdhuryamitk activityrepresentationusing3dshapemodels AT akdemirumut activityrepresentationusing3dshapemodels AT abdelkadermohamedf activityrepresentationusing3dshapemodels AT chellapparama activityrepresentationusing3dshapemodels |