DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kyung, Chong-Min | - |
dc.contributor.advisor | 경종민 | - |
dc.contributor.author | Lee, Sang-Heon | - |
dc.contributor.author | 이상헌 | - |
dc.date.accessioned | 2011-12-14 | - |
dc.date.available | 2011-12-14 | - |
dc.date.issued | 2010 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=418779&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/35582 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 전기 및 전자공학과, 2010.2, [ viii, 68 p. ] | - |
dc.description.abstract | In recent video applications such as MPEG or H.264/AVC, the bandwidth requirement for frame memory has become one of the most critical problems. Compressing pixel data before storing in off-chip frame memory is required to alleviate this problem. This thesis proposed a lossless frame memory recompression scheme including 1) a lossless pixel compression algorithm with hierarchical prediction scheme and entropy coding scheme or low latency decoding process which maintains the balance between memory access cycles and decompression cycles, 2) an efficient organization of the address table with pattern based compression method to preserve random accessibility for the compressed data with the small size of embedded memory, and 3) frame memory placement scheme for the compressed data to reduce the effective access time of SDRAM by suppressing row switching. Experimental results show that the proposed method reduces the frame data to 46% compared to that of the uncompressed one with H.264/AVC high profile encoder system, where 6.1kB of SRAM is required for the address table of full HD video. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | address table | - |
dc.subject | lossless compression | - |
dc.subject | frame memory recompression | - |
dc.subject | decompression latency | - |
dc.subject | 복원 시간 | - |
dc.subject | 주소 테이블 | - |
dc.subject | 무손실 압축 | - |
dc.subject | 프레임 재압축 | - |
dc.title | Lossless frame memory recompression for video codec preserving random accessibility of coding unit | - |
dc.title.alternative | 비디오 코덱에서의 임의 접근성을 유지하는 무손실 데이터 압축 방법에 대한 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 418779/325007 | - |
dc.description.department | 한국과학기술원 : 전기 및 전자공학과, | - |
dc.identifier.uid | 020035219 | - |
dc.contributor.localauthor | Kyung, Chong-Min | - |
dc.contributor.localauthor | 경종민 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.