TY - GEN
T1 - Motion based retrieval of dynamic objects in videos
AU - Liu, Che Bin
AU - Ahuja, Narendra
PY - 2004
Y1 - 2004
N2 - Most existing video retrieval systems use low-level visual features such as color histogram, shape, texture, or motion. In this paper, we explore the use of higher-level motion representation for video retrieval of dynamic objects. We use three motion representations, which together can retrieve a large variety of motion patterns. Our approach works on top of a tracking unit and assumes that each dynamic object has been tracked and circumscribed in a minimal bounding box in each video frame. We represent the motion attributes of each object in terms of changes in the image context of its circumscribing box. The changes are described via motion templates, self-similarity plots, and image dynamics. Initially, denned criteria of the retrieval process are interactively refined using relevance feedback from the user. Experimental results demonstrate the use of the proposed motion models in retrieving objects undergoing complex motion.
AB - Most existing video retrieval systems use low-level visual features such as color histogram, shape, texture, or motion. In this paper, we explore the use of higher-level motion representation for video retrieval of dynamic objects. We use three motion representations, which together can retrieve a large variety of motion patterns. Our approach works on top of a tracking unit and assumes that each dynamic object has been tracked and circumscribed in a minimal bounding box in each video frame. We represent the motion attributes of each object in terms of changes in the image context of its circumscribing box. The changes are described via motion templates, self-similarity plots, and image dynamics. Initially, denned criteria of the retrieval process are interactively refined using relevance feedback from the user. Experimental results demonstrate the use of the proposed motion models in retrieving objects undergoing complex motion.
KW - Content-Based Video Retrieval
KW - Motion Analysis.
UR - http://www.scopus.com/inward/record.url?scp=13444256095&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=13444256095&partnerID=8YFLogxK
U2 - 10.1145/1027527.1027593
DO - 10.1145/1027527.1027593
M3 - Conference contribution
AN - SCOPUS:13444256095
SN - 1581138938
SN - 9781581138931
T3 - ACM Multimedia 2004 - proceedings of the 12th ACM International Conference on Multimedia
SP - 288
EP - 291
BT - ACM Multimedia 2004 - proceedings of the 12th ACM International Conference on Multimedia
PB - Association for Computing Machinery
T2 - ACM Multimedia 2004 - proceedings of the 12th ACM International Conference on Multimedia
Y2 - 10 October 2004 through 16 October 2004
ER -