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2007

Compressed domain video retrieval using object and global motion descriptors

8 years 11 months ago
Compressed domain video retrieval using object and global motion descriptors
Video content description has become an important task with the standardization effort of MPEG-7, which aims at easy and efficient access to visual information. In this paper we propose a system to extract the object-based and global features from compressed MPEG video using the motion vector information for video retrieval. The reliability of the motion information is enhanced by a motion accumulation process. The global features like motion activity and camera motion parameters are extracted from the above enhanced motion information. The object features such as speed, area and trajectory are then obtained after the proposed object segmentation. The number of objects in a given video shot is determined by the proposed K-means clustering procedure. The object segmentation is done by applying EM algorithm. Key words: Compressed Domain, Content-based Video Retrieval, Motion Descriptors, Object trajectory, MPEG-7
R. Venkatesh Babu, K. R. Ramakrishnan
Added 27 Dec 2010
Updated 27 Dec 2010
Type Journal
Year 2007
Where MTA
Authors R. Venkatesh Babu, K. R. Ramakrishnan
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