DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kyung, Chong-Min | - |
dc.contributor.advisor | 경종민 | - |
dc.contributor.author | Do, Jung-Ho | - |
dc.contributor.author | 도정호 | - |
dc.date.accessioned | 2011-12-14T02:08:57Z | - |
dc.date.available | 2011-12-14T02:08:57Z | - |
dc.date.issued | 2009 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=327330&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/38780 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2009. 8., [ v, 26 p. ] | - |
dc.description.abstract | In this paper, we proposed a rate-distortion (R-D) optimization-based intra encoder for better R-D performance. To reduce the computational complexity of R-D optimization-based mode decision, we proposed two schemes; an early block type decision method and a rate estimation method for context-based adaptive variable length coding (CAVLC). Using the first method, we decided early the best block size for R-D optimization-based mode decision among luma 4×4, 8×8 and 16×16 block. The proposed method is used for R-D cost of a subblock (8×16 block) instead of that of macroblock (MB) with the proposed encoding order for the intra prediction of 4×4 and 8×8 block. The luma components of total R-D cost are only used for the mode decision without chroma components. The chroma components have small potion of total R-D cost of MB due to subsampling (4:2:0) and relatively small variance between chroma pixels. This method achieved the reduction of computational complexity with average 0.04dB PSNR degradation and rate increase of less than 1% compared with the full search method. The second method is based on replacing the CAVLC table for three key parameters, $\textit{Coefficient\_token}$, $\textit{Total\_zeros}$, and $\textit{Run\_before}$ into simple arithmetic expressions. Experimental results show that the proposed scheme reduced the encoding time by about 50% for full high definition and achieves almost the same PSNR at about 0.1% bit-rate increment compared with the JM reference software. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | H.264/AVC | - |
dc.subject | Intra prediction | - |
dc.subject | RDO | - |
dc.subject | block type decision | - |
dc.subject | rate estimation | - |
dc.subject | H.264/AVC | - |
dc.subject | 인트라 예측 | - |
dc.subject | 율왜곡최적화 | - |
dc.subject | 블럭 타입 결정 | - |
dc.subject | 율 예측 | - |
dc.subject | H.264/AVC | - |
dc.subject | Intra prediction | - |
dc.subject | RDO | - |
dc.subject | block type decision | - |
dc.subject | rate estimation | - |
dc.subject | H.264/AVC | - |
dc.subject | 인트라 예측 | - |
dc.subject | 율왜곡최적화 | - |
dc.subject | 블럭 타입 결정 | - |
dc.subject | 율 예측 | - |
dc.title | Rate-distortion optimization-based intra encoder design | - |
dc.title.alternative | 율-왜곡 최적화 기술을 이용한 인트라 인코더 설계 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 327330/325007 | - |
dc.description.department | 한국과학기술원 : 전기및전자공학전공, | - |
dc.identifier.uid | 020074143 | - |
dc.contributor.localauthor | Kyung, Chong-Min | - |
dc.contributor.localauthor | 경종민 | - |
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