基于多核DSP的H.264图像压缩编码的并行化实现  

Research of H.264 parallel image compression based on multicore DSP

作　　者：李素钧 廖胜[2] 李强[2] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]中国科学院大学,北京100049

出　　处：《电子设计工程》2017年第4期126-129,共4页Electronic Design Engineering

摘　　要：高分辨率、高帧频成像技术使用日益广泛,导致图像实时压缩传输难以实现,针对此问题,本文通过对H.264并行编码模型以及多核DSP并行调度方案的分析,提出了以x264开源代码和TMS320C6678多核DSP为基础的静态划分和动态划分Slice级并行编码算法。实验结果表明,多核并行编码效率要高于单核编码,且编码效率随着核数的增加而增加;动态划分相对于静态划分能够更好地做到负载均衡化,提升编码效率。With high frame rate, high-resolution imaging techniques used increasingly widespread ,it isdifficult to implement real-time copmpression. To solve the problem, though the analysis of parallelencoding model and Multicore DSP parallel scheduling program, this paper proposes a parallel encodingalgorithm based on x264 open source and Multicore DSP, which is Slice level encoding algorithm basedon static division and dynamic division. The expermental results demonstrate that multicore parallelencoding is more efficient than single-core encoding and encoding efficiency increases with theincreasing of core, besides dynamic partitioning than static division can do a better load equalization andget higher encoding efficienet.

关 键 词：H.264 图像压缩 X264 多核DSP 并行化 

分 类 号：TN919[电子电信—通信与信息系统]