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基于BWDSPHEVC的向量SIMD哈达玛变换并行设计 被引量:1

A Parallel Algorithm for SIMD Hadamard Transform Based on BWDSP
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摘要 针对HEVC中SATD率失真代价计算的特点,本文提出利用向量SIMD(单指令多数据流)技术,设计哈达玛变换的并行化方案.该方案采用多加法器和多乘法器协同工作模式,发挥处理器的并行性,通过合理的数据安排,很好地实现了多个宏中数据的并行计算,增大DSP的数据吞吐率,提高数据处理速度.实验结果表明其在单核BWDSP1041上的并行加速比达到87.9,证明了优化工作的有效性.
作者 佘成龙 段苓丽 汪辉 SHE Cheng-long;DUAN Ling-li;WANG Hui
出处 《电脑知识与技术》 2018年第7Z期222-224,共3页 Computer Knowledge and Technology
基金 中国电子科技集团第三十八研究所委托项目(W2017JSKF0213)
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