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|Title:||Efficient algorithm for reverse playback in MPEG video streaming|
Video tape recorders
|Source:||ISIMP 2004 : proceedings of 2004 International Symposium on Intelligent Multimedia, Video and Speech Processing : October 20-22, 2004, Hong Kong, p. 659-662 How to cite?|
|Abstract:||Reverse playback is the most common video cassette recording (VCR) functions in many digital video players. However, the predictive processing techniques employed in MPEG severely complicate the reverse-play operation. Previously. we have proposed a compressed-domain algorithm for the MPEG video streaming system to provide efficient reverse playback. In the proposed video streaming server, it classifies macroblocks in the requested frame into two categories - a backward macroblock (BMB) and a forward macroblock (FMB). For BMB, a sign inversion technique has been proposed to reduce the number of macroblocks that need to be decoded by the decoder. However, the required number of macroblocks for reconstructing FMBs is still very high. In this paper, the server identifies the related previous macroblocks of FMBs and reduces the redundancies of those related macroblocks to further reduce the computational complexity of the client decoder. Experimental results show that, as compared to the conventional and the previously proposed algorithms, the new streaming algorithm reduces the required network bandwidth and the decoding complexity significantly.|
|Rights:||© 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
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|Appears in Collections:||Conference Paper|
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Checked on May 21, 2017
Checked on May 21, 2017
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