Applying CUDA Architecture to Accelerate Full Search Block Matching Algorithm for High Performance Motion Estimation in Video Encoding

Eduarda Monteiro, B. Vizzotto, C. Diniz, B. Zatt, S. Bampi
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引用次数: 14

Abstract

This work presents a parallel GPU-based solution for the Motion Estimation (ME) process in a video encoding system. We propose a way to partition the steps of Full Search block matching algorithm in the CUDA architecture. A comparison among the performance achieved by this solution with a theoretical model and two other implementations (sequential and parallel using OpenMP library) is made as well. We obtained a O(n^2/log^2n) speed-up which fits the proposed theoretical model considering different search areas. It represents up to 600x gain compared to the serial implementation, and 66x compared to the parallel OpenMP implementation.
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应用CUDA架构加速视频编码中高性能运动估计的全搜索块匹配算法
本文提出了一种基于并行gpu的视频编码系统运动估计(ME)处理方案。提出了一种基于CUDA架构的全搜索块匹配算法的步骤划分方法。并将该解决方案与理论模型和其他两种实现(使用OpenMP库的顺序和并行)的性能进行了比较。我们得到了一个O(n^2/log^2n)的加速,这符合所提出的理论模型,考虑了不同的搜索区域。与串行实现相比,它代表高达600倍的增益,与并行OpenMP实现相比,它代表高达66倍的增益。
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