Structured sparse representation of residue in screen content video coding
- 등재 SCIE, SCOPUS
- 발행기관 Institution of Engineering and Technology
- 발행년도 2015
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000120459
- 본문언어 영어
- Published As http://dx.doi.org/10.1049/el.2015.0746
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
A novel transform method providing a regionally structured sparse model of residue for a video coding is proposed. Conventional learningbased video coding methods consider only the number of transformed coefficients in a dictionary construction but disregard any structural form of residue. A structural form of coefficients is used for another factor, specified by a set of local block patterns, in a transform design so as to yield the regionally compact distribution of the coefficients. A transform coefficient coding method is also developed because the distribution of the coefficients is different with that of conventional transforms. It is demonstrated with experiments that the proposed method outperforms the coding efficiency and visual quality over high efficiency video coding/screen content coding reference software. © The Institution of Engineering and Technology 2015.
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