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Title: Redundancy reduction technique for dual-bitstream MPEG video streaming with VCR functionalities
Authors: Ip, TP
Chan, YL 
Siu, WC 
Issue Date: Sep-2008
Source: IEEE transactions on broadcasting, Sept. 2008, v. 54, no. 3, p. 412-418
Abstract: With the proliferation of online video contents, it is highly desirable that video streaming systems are able to provide fast and effective video browsing. However, the predictive coding techniques adopted in current compression standards such as MPEG severely complicate these browsing operations. One approach to achieve browsing functionalities is to store an additional reverse-encoded bitstream into the server. Unfortunately, this extra bitstream approximately doubles the storage requirement of the video server. In this paper, we make use of the redundancy inherent between the forward and reverse-encoded bitstreams in order to achieve a substantial reduction on the size of the reverse-encoded bitstream. A novel macroblock-selection strategy is then proposed in the server to access and manipulate various macroblocks from the forward and reverse-encoded bistreams to facilitate various browsing operations. Experimental results show that, as compared to the conventional dual-bitstream scheme, the new scheme significantly alleviates the storage increase due to the additional reverse-encoded bitstream.
Keywords: Digital video browsing
Digital video cassette recording (VCR)
Dual-bitstream scheme
MPEG video
Streaming video
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE transactions on broadcasting 
ISSN: 0018-9316
EISSN: 1557-9611
DOI: 10.1109/TBC.2008.2000289
Rights: © 2008 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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