Gait analysis for classification
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002. === Includes bibliographical references (p. 121-124). === This thesis describes a representation of gait appearance for the purpose of person identification and classification. This ga...
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ndltd-MIT-oai-dspace.mit.edu-1721.1-81162019-05-02T16:12:24Z Gait analysis for classification Lee, Lily, 1971- W.E.L. Grimson. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002. Includes bibliographical references (p. 121-124). This thesis describes a representation of gait appearance for the purpose of person identification and classification. This gait representation is based on simple localized image features such as moments extracted from orthogonal view video silhouettes of human walking motion. A suite of time-integration methods, spanning a range of coarseness of time aggregation and modeling of feature distributions, are applied to these image features to create a suite of gait sequence representations. Despite their simplicity, the resulting feature vectors contain enough information to perform well on human identification and gender classification tasks. We demonstrate the accuracy of recognition on gait video sequences collected over different days and times, and under varying lighting environments. Each of the integration methods are investigated for their advantages and disadvantages. An improved gait representation is built based on our experiences with the initial set of gait representations. In addition, we show gender classification results using our gait appearance features, the effect of our heuristic feature selection method, and the significance of individual features. by Lily Lee. Ph.D. 2005-08-24T20:28:02Z 2005-08-24T20:28:02Z 2002 2002 Thesis http://hdl.handle.net/1721.1/8116 51541439 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 124 p. 9708920 bytes 9708679 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
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Electrical Engineering and Computer Science. |
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Electrical Engineering and Computer Science. Lee, Lily, 1971- Gait analysis for classification |
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002. === Includes bibliographical references (p. 121-124). === This thesis describes a representation of gait appearance for the purpose of person identification and classification. This gait representation is based on simple localized image features such as moments extracted from orthogonal view video silhouettes of human walking motion. A suite of time-integration methods, spanning a range of coarseness of time aggregation and modeling of feature distributions, are applied to these image features to create a suite of gait sequence representations. Despite their simplicity, the resulting feature vectors contain enough information to perform well on human identification and gender classification tasks. We demonstrate the accuracy of recognition on gait video sequences collected over different days and times, and under varying lighting environments. Each of the integration methods are investigated for their advantages and disadvantages. An improved gait representation is built based on our experiences with the initial set of gait representations. In addition, we show gender classification results using our gait appearance features, the effect of our heuristic feature selection method, and the significance of individual features. === by Lily Lee. === Ph.D. |
author2 |
W.E.L. Grimson. |
author_facet |
W.E.L. Grimson. Lee, Lily, 1971- |
author |
Lee, Lily, 1971- |
author_sort |
Lee, Lily, 1971- |
title |
Gait analysis for classification |
title_short |
Gait analysis for classification |
title_full |
Gait analysis for classification |
title_fullStr |
Gait analysis for classification |
title_full_unstemmed |
Gait analysis for classification |
title_sort |
gait analysis for classification |
publisher |
Massachusetts Institute of Technology |
publishDate |
2005 |
url |
http://hdl.handle.net/1721.1/8116 |
work_keys_str_mv |
AT leelily1971 gaitanalysisforclassification |
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1719036563074056192 |