A Lossless Re-Encoding of MPEG-2 Coded File by Integrating Four Motion Vectors

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Provided by: Technomathematics Research Foundation
Topic: Software
Format: PDF
Re-encoding of once compressed files is one of the difficult challenges in measuring the efficiency of coding methods. Variable length coding with a variable source delimiting scheme is a promising method for improving re-encoding efficiency. Analyses of coded files with fixed length delimiting and with variable length delimiting are reviewed. Motion vector codes of MPEG-2 encoded files are modified as a variable-to-variable coding point of view. Length, bit-rates, and varieties of videos are examined. One of the largest file is 16 seconds of D1 full size at 720 ×480, and in total, the length of videos used in the experiments is more than 750 seconds.
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