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Efficient Residual DPCM Using an l(1) Robust Linear Prediction in Screen Content Video Coding

Title
Efficient Residual DPCM Using an l(1) Robust Linear Prediction in Screen Content Video Coding
Authors
Kang, Je-WonRyu, Soo-KyungKim, Na-YoungKang, Min-Joo
Ewha Authors
강제원
SCOPUS Author ID
강제원scopus
Issue Date
2016
Journal Title
IEEE TRANSACTIONS ON MULTIMEDIA
ISSN
1520-9210JCR Link1941-0077JCR Link
Citation
vol. 18, no. 10, pp. 2054 - 2065
Keywords
l(1) optimizationlossy and lossless codingmachine learningparallelismresidual differential pulse code modulation (RDPCM)screen content coding (SCC)
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Indexed
SCIE; SCOPUS WOS scopus
Abstract
In this paper, a residual differential pulse code modulation (RDPCM) coding technique using a weighted linear combination of neighboring residual samples is proposed to provide coding efficiency in the screen content video coding. The RDPCM performs the sample-based prediction of residue to reduce spatial redundancies. The proposed method uses the l(1) optimization in the weight derivation by considering the statistical characteristics of graphical components in videos in an intracoding. Specifically we use the least absolute shrinkage and selection operator to derive the weights because the solution is accurate in high variance residue. Furthermore, we enhance parallelism in a line processing by restricting the support to the row-wise prediction to above samples or the column-wise prediction to the left samples. The proposed method uses an explicit RDPCM scheme, so a coding mode determined by rate-distortion optimization is transmitted to a decoder. For coding the overhead, we develop a context design in CABAC based on correlation between an intraprediction direction and an RDPCM prediction mode. It is demonstrated with the experimental results that the proposed method provides a significant coding gain over the state-of-the-art reference codec for screen content video coding.
DOI
10.1109/TMM.2016.2595259
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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