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[1]付 航,章秀华*,贺 武.多视点去模糊算法在双核DSP上的并行优化[J].武汉工程大学学报,2015,37(11):74-78.[doi:10. 3969/j. issn. 1674-2869. 2015. 11. 015]
 ,Parallel optimization of multi-view deblurring algorithm in dual-core digital signal processor[J].Journal of Wuhan Institute of Technology,2015,37(11):74-78.[doi:10. 3969/j. issn. 1674-2869. 2015. 11. 015]
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多视点去模糊算法在双核DSP上的并行优化(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年11期
页码:
74-78
栏目:
机电与信息工程
出版日期:
2015-12-30

文章信息/Info

Title:
Parallel optimization of multi-view deblurring algorithm in dual-core digital signal processor
文章编号:
1674-2869(2015)11-074-05
作者:
付 航章秀华*贺 武
武汉工程大学电气信息学院,湖北 武汉 430205
Author(s):
FU HangZHANG Xiu-huaHE Wu
School of Electrical and Information Engineering, Wuhan Institute of Technology, Wuhan 430205,China
关键词:
DSP双核并行多视点去模糊
Keywords:
digital signal processor parallel optimization multi-views deblurring
分类号:
TP391
DOI:
10. 3969/j. issn. 1674-2869. 2015. 11. 015
文献标志码:
A
摘要:
为了实现多视点去模糊算法在小型设备上快速运行,提出了一种并行优化的方法. 采用TMS320C6657双核数字信号处理器 (DSP,Digital signal processor)作为主要运算芯片,使用CCSv5.2作为软件开发环境. 为了解决算法在单核上运行时间长的问题,首先使用时间戳计数器对算法中各部分功能函数的运行时间进行了详细的统计和分析; 然后将运行时间最长的子函数中矩阵相乘部分的算法进行了优化,采用一个分界点将矩阵相乘部分算法划分为两块,将计算量均等的分配到DSP的两个核心上,使这部分算法能够同时在两个核心上并行运算. 结果表明对分界点的求解是正确有效的;优化后的图像去模糊算法极大的缩短了DSP上的运算时间,提高了运算效率.
Abstract:
To realize fast running of the multi-view deblurring algorithm in small devices, aparallel optimization algorithm was proposed.TMS320C6657 dual-core digital signal processor (DSP) was used as the primary computing chip, and the CCSv5.2 was used as the software development environment. To solve the problem of time consume of the single core, the time of each sub-function in the algorithm was analyzed by using the time stamp counter. Then the algorithm of matrix multiplication that consumes the longest time in the sub-function was optimized by dividing into two parts using a dividing point, and the amount of calculation was assigned to the two cores of DSP equally to ensure the algorithm run in parallel. The results show that the solving method of the dividing point is correct and effective; the running time of the DSP is reduced significantly by the optimized algorithm of multi-view deblurring and the operation efficiency is improved.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-10-23基金项目:国家自然科学基金面上项目(61175013);湖北省自然科学基金创新群体项目(2012FFA046);武汉市国际科技合作计划项目(2014030709020310)作者简介:付航(1991-),男,湖北随州人,硕士研究生. 研究方向:图像处理与目标识别. * 通信联系人
更新日期/Last Update: 2015-12-13