Scalable VLSI Architecture for Variable Block Size Integer Motion Estimation in H.264/AVC(<Special Section>Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
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概要
- 論文の詳細を見る
Because of the data correlation in the motion estimation (ME) algorithm of H.264/AVC reference software, it is difficult to implement an efficient ME hardware architecture. In order to make parallel processing feasible, four modified hardware friendly ME workflows are proposed in this paper. Based on these workflows, a scalable full search ME architecture is presented, which has following characteristics: (1) The sum of absolute differences (SAD) results of 4×4 sub-blocks is accumulated and reused to calculate SADs of bigger sub-blocks. (2) The number of PE groups is configurable. For a search range of M×N pixels, where M is width and N is height, up to M PE groups can be configured to work in parallel with a peak processing speed of N×16 clock cycles to fulfill a full search variable block size ME (VBSME). (3) Only conventional single port SRAM is required, which makes this architecture suitable for standard-cell-based implementation. A design with 8 PE groups has been realized with TSMC 0.18μm CMOS technology. The core area is 2.13mm×1.60mm and clock frequency is 228MHz in typical condition (1.8V, 25℃).
- 社団法人電子情報通信学会の論文
- 2006-04-01
著者
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GOTO Satoshi
Graduate School of Information, Production and Systems, Waseda University
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Ikenaga Takeshi
Graduate school of Information, Production and Systems, Waseda University
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Ikenaga Takeshi
Graduate School Of Information Production And System Waseda University
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Ikenaga Takeshi
Graduate School Of Ips Waseda University
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SONG Yang
Graduate School of Information, Production and Systems, Waseda University
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Song Yang
Graduate School Of Ips Waseda University
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Liu Zhenyu
Kitakyushu Foundation For The Advancement Of Industry Science And Technology
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Liu Zhenyu
Ips Waseda University
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Song Yang
Graduate School Of Information Production And Systems Waseda University
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Goto Satoshi
Graduate School Of Information Production And System Waseda University
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Liu Zhenyu
Tsinghua University
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IKENAGA Takeshi
Graduate School of Fundamental Science and Engineering, Waseda University
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Goto Satoshi
Graduate School of Infomlation Production and Systems Waseda University
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