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CLC number: TN919.8

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Received: 2008-07-01

Revision Accepted: 2008-10-26

Crosschecked: 2009-05-27

Cited: 1

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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.8 P.1160~1168

http://doi.org/10.1631/jzus.A0820502


Parallel processing architecture of H.264 adaptive deblocking filters


Author(s):  Hu WEI, Tao LIN, Zheng-hui LIN

Affiliation(s):  Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Corresponding email(s):   microtiger@sjtu.org

Key Words:  Deblocking filter, Adaptive dynamic power, Parallel processing, Pipeline, H.264


Hu WEI, Tao LIN, Zheng-hui LIN. Parallel processing architecture of H.264 adaptive deblocking filters[J]. Journal of Zhejiang University Science A, 2009, 10(8): 1160~1168.

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author="Hu WEI, Tao LIN, Zheng-hui LIN",
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%DOI 10.1631/jzus.A0820502

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T1 - Parallel processing architecture of H.264 adaptive deblocking filters
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0820502


Abstract: 
In h.264, computational complexity and memory access of deblocking filters are variable, dependent on video contents. This paper proposes a VLSI architecture of deblocking filters with adaptive dynamic power, which avoids redundant computations and memory accesses by precluding the blocks that can be skipped. The vertical and horizontal edges are simultaneously processed in an advanced scan order to speed up the decoder. As a result, dynamic power of the proposed architecture can be reduced adaptively (up to about 89%) for different videos, and the off-chip memory access is improved when compared to previous designs. Moreover, the processing capability of the proposed architecture is in particular appropriate for real-time deblocking of high-definition television (HDTV, 1920×1080 pixels/frame, 60 frames/s video signals) video operation at 62 MHz. Using the proposed architecture, power can be reduced by up to about 89% and processing time by from 25% to 81% compared with previous designs.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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