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On the Effect of Approximate-Computing in Motion Estimation

机译:关于近似计算在运动估计中的影响

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摘要

Motion estimation is the key engine of modern video coding systems. Despite being an effective technique to exploit temporal redundancy, it features high computational complexity, being also a power-hungry block. Stemming from an optimized architecture for the computation of the Sum of Absolute Differences (SADs) in the context of the High Efficiency Video Coding (HEVC) standard, this work analyses the effects and the advantages offered by approximated adders. Experimental results show that the adoption of approximate adders can effectively save power while introducing a small error, in particular when dealing with larger Prediction Units.
机译:运动估计是现代视频编码系统的关键引擎。 尽管是利用时间冗余的有效技术,但它具有高的计算复杂性,也是一种令人掌的块。 在高效视频编码(HEVC)标准的上下文中计算绝对差异(SADS)总和的优化架构,这项工作分析了近似加法器的效果和优势。 实验结果表明,通过近似添加剂的采用可以有效地节省电力,同时引入小错误,特别是在处理更大的预测单元时。

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