Fast CABAC decoding for the real-time processing of HD H.264/AVC = 실시간 HD급 H.264/AVC 처리를 위한 문맥적응적 이진산술부호의 고속복호화

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 271
  • Download : 0
The decoding of context-based adaptive binary arithmetic coding (CABAC) imposes a heavy performance requirement on H.264/AVC decoding systems particularly for largescale video sequences. As a simple approach of elevating the operating frequency is not sufficient to meet the performance requirement, this paper proposes an efficient approach to accelerate the decoding, which is effective under relatively low operating frequency. Since the CABAC decoding procedure is highly sequential and has strong data dependencies, it is difficult to exploit parallelism and pipeline schemes. The proposed approach resolves the difficulties by modifying the operation chain based on a thorough analysis, eventually enabling both parallel operations and pipelining. More specifically, 1) several context models are simultaneously loaded from memory while context selection is performed in parallel; and 2) bin-level pipelining is enabled by employing a small storage to remove structural hazards and data dependencies. Experimental results show that the proposed approach leads to the decoding throughput of about 1 symbol/cycle, thus enabling the real-time decoding of HD sequences.
Advisors
Park, In-Cheolresearcher박인철researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2007
Identifier
268731/325007  / 020015206
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 전기및전자공학전공, 2007. 8 , [ viii, 101 p. ]

Keywords

CABAC

URI
http://hdl.handle.net/10203/35425
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=268731&flag=dissertation
Appears in Collection
EE-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0