A New Approach to Hierarchically Retrieve MPEG Video

Authors:
Yang Liu;Huanqiang Zhang;Zhimei Wu
Affiliations:
-;-;-
Venue:
IDEAL '02 Proceedings of the Third International Conference on Intelligent Data Engineering and Automated Learning
Year:
2002

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Abstract

Many researchers have devoted into video retrieval research and given lots of efficient video retrieval algorithms. Most of past algorithms were done in pixel domain, which needed lots of decoding calculations. What's more, the same matching algorithm was used to all the video clips, which also wasted many unnecessary calculations. This paper presents a new approach to hierarchically retrieve video by example video in MPEG compressed domain. Firstly, the dct_dc_size field in I frames is analyzed to filter out the obviously different video clips quickly, and then the precise matching analysis of DC image is used to get the final retrieval result. Our experiment results show that this approach needs a few calculations and has high precision ratio.