DocumentCode :
2064154
Title :
A highly pipelined VLSI architecture for all modes and block sizes intra prediction in HEVC encoder
Author :
Cong Liu ; Weiwei Shen ; Tianlong Ma ; Yibo Fan ; Xiaoyang Zeng
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
fYear :
2013
fDate :
28-31 Oct. 2013
Firstpage :
1
Lastpage :
4
Abstract :
The adoption of 35 prediction modes and quad-tree structure in intra coding of High Efficiency Video Coding (HEVC) significantly improves the coding efficiency. In this paper, a highly pipelined 16-pixel parallel VLSI architecture of intra prediction in HEVC encoder is proposed, supporting all prediction modes and all block sizes. Original pixels are used to help to decide prediction mode and block partition in the premise of negligible PSNR degradation, and a universal predictor is presented. In order to reduce internal buffers when scanning full-mode and full-size predictions in encoder, post-order traversal is applied to the quad-tree structure blocks. It takes 8967 cycles to complete the intra prediction of a whole 32×32 treeblock, including prediction and the decision of mode and block partition. This design is synthesized with TSMC 65nm CMOS technology. It can run at 600 MHz, supporting real-time encoding of 1080P@30fps video sequence.
Keywords :
CMOS integrated circuits; VLSI; parallel architectures; quadtrees; video coding; HEVC encoder; PSNR degradation; TSMC CMOS technology; block partition; block size intraprediction mode; frequency 600 MHz; full-size predictions; high efficiency video coding; highly pipelined 16-pixel parallel VLSI architecture; internal buffer reduction; post-order traversal; quad-tree structure blocks; scanning full-mode; size 65 nm; universal predictor; video sequence; Computer architecture; Engines; Hardware; Standards; Throughput; Very large scale integration; Video coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
ASIC (ASICON), 2013 IEEE 10th International Conference on
Conference_Location :
Shenzhen
ISSN :
2162-7541
Print_ISBN :
978-1-4673-6415-7
Type :
conf
DOI :
10.1109/ASICON.2013.6811849
Filename :
6811849
Link To Document :
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