An efficient VLSI architecture for H.264 variable block size motion estimation
An efficient VLSI architecture for H.264 variable block size motion estimation
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用于 H.264 可变块大小运动估计的高效 VLSI 架构
DOI：
10.1109/tce.2005.1561858
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发表时间：
2005
影响因子：
4.3
通讯作者：
Wen
中科院分区：
文献类型：
--
作者：
C. Ou;Chian;Wen
本文提出了一种新的灵活的VLSI结构的实现可变块大小的运动估计（VBSME）。该架构能够在4/spl倍/4块大小的整数倍上执行全运动搜索。为了使用该架构，源帧的每个16/spl乘以/16宏块应该被划分成16个4/spl乘以/4不重叠的子块，称为原语子块。该架构包含16个模块和一个VBSME处理器。每个模块由ID脉动阵列级联实现，负责不同基元子块的块匹配操作。该实现具有高吞吐量、高灵活性和100%处理元件（PE）利用率的优点。并行执行所有原始子块的运动估计。由于这些原始子块可用于形成由H. 264规定的不同大小的41个子块，因此VBSME处理器用于从原始子块的SAD并行地计算所有41个子块的绝对差之和（SAD）。这种新的架构具有更低的延迟和更高的吞吐量比其他现有的VBSME架构的硬件实现的H.264编码器。
This paper proposes a novel flexible VLSI architecture for the implementation of variable block size motion estimation (VBSME). The architecture is able to perform a full motion search on integral multiples of 4/spl times/4 blocks sizes. To use the architecture, each 16/spl times/16 macroblock of the source frames should be partitioned into sixteen 4/spl times/4 non-overlapping subblocks, called primitive subblocks. The architecture contains sixteen modules and one VBSME processor. Each module, realized by cascading ID systolic arrays, is responsible for the block-matching operations of a different primitive subblock. The realization has the advantages of high throughput, high flexibility and 100 % processing element (PE) utilization. The motion estimation of all the primitive subblocks is performed in parallel. Because these primitive subblocks can be used to form the 41 subblocks of different sizes specified by the H.264, the VBSME processor is employed to concurrently compute the sums of absolute differences (SADs) of all the 41 subblocks from the SADs of the primitive subblocks. This new architecture has lower latency and higher throughput over other exiting VBSME architectures for the hardware implementation of H.264 encoders.
DOI：
10.1109/tcsvt.2003.815165
发表时间：
2003-07-01
影响因子：
8.4
作者：
Wiegand, T;Sullivan, GJ;Luthra, A
通讯作者：
Luthra, A
关于H.264/AVC中由于改变参考帧而导致嵌入信息量的增加
DOI：
--
发表时间：
2012
期刊：
影响因子：
--
作者：
李鵬;戚意強;呉海元;三浦浩一;瀧寛和;高木洋
通讯作者：
高木洋