A low bit-rate video-coding algorithm based upon variable pattern selection

Recent research into pattern representation of moving regions in block-based motion estimation and compensation in video sequences has focused mainly upon using a fixed number of regularly shaped patterns. These are used to match the macroblocks in a frame that have two distinct regions involving st...

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Bibliographic Details
Published inICSP' 02 : 2002 6th International Conference on Signal Processing proceedings, August 26-30, 2002, Beijing, China Vol. 2; pp. 933 - 936 vol.2
Main Authors Paul, M., Murshed, M., Dooley, L.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Australia
Bandwidth
Degradation
Focusing
Frequency
Image coding
Motion estimation
PSNR
Video coding
Video sequences
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ISBN9780780374881
0780374886
DOI10.1109/ICOSP.2002.1179940

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Summary:Recent research into pattern representation of moving regions in block-based motion estimation and compensation in video sequences has focused mainly upon using a fixed number of regularly shaped patterns. These are used to match the macroblocks in a frame that have two distinct regions involving static background and moving objects. A new variable pattern selection (VPS) algorithm is presented which selects a preset number of best-matched patterns from a pattern codebook of regular shaped patterns. While more patterns are used than in the previous work, the performance of the VPS algorithm in using variable length coding, by exploiting the frequency of the best-matched patterns, leads to a higher compression ratio, without degrading the overall image quality.
ISBN:9780780374881
0780374886
DOI:10.1109/ICOSP.2002.1179940