https://scholars.lib.ntu.edu.tw/handle/123456789/147603
Title: | Architecture Design of Context-Based Adaptive Variable-Length Coding for H.264/AVC | Authors: | Chen, Tung-Chien Huang, Yu-Wen Tsai, Chuan-Yung Hsieh, Bing-Yu LIANG-GEE CHEN |
Keywords: | Context-based adaptive variable-length coding (CAVLC);H.264/AVC;VLSI architecture | Issue Date: | Sep-2006 | Publisher: | Taipei:National Taiwan University Dept Elect Engn | Journal Volume: | 53 | Journal Issue: | 9 | Start page/Pages: | 832 - 836 | Source: | IEEE Transactions on Circuits and Systems II: Express Briefs | Abstract: | Context-based adaptive variable-length coding (CAVLC) is a new and important feature of the latest video coding standard, H.264/AVC. The direct VLSI implementation of CAVLC modified from the conventional run-length coding architecture will lead to low throughput and utilization. In this brief, an efficient CAVLC design is proposed. The main concept is the two-stage block pipelining scheme for parallel processing of two 4 4 blocks. When one block is processed by the scanning engine to collect the required symbols, its previous block is handled by the coding engine to translate symbols into bitstream. Our dual-block-pipelined architecture doubles the throughput and utilization of CAVLC at high bit rates. Moreover, a zero skipping technique is adopted to reduce up to 90% of cycles at low bit rates. Last but not least, Exp-Golomb coding for other general symbols and bitstream encapsulation for the network abstraction layer are integrated with CAVLC as a complete H.264/AVC baseline profile entropy coder. Simulation shows that our design is capable of real-time processing for 1920 1088 30-fps videos with 23.6 K logic gates at 100 MHz. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/200611150121898 https://www.scopus.com/inward/record.uri?eid=2-s2.0-34047165800&doi=10.1109%2fTCSII.2006.880014&partnerID=40&md5=79a0422a9a0ae333e048727a8bec0e49 |
ISSN: | 15497747 | Other Identifiers: | 246246/200611150121898 | DOI: | 10.1109/TCSII.2006.880014 |
Appears in Collections: | 電機工程學系 |
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