基于流处理器的图像灰度变换并行处理研究

Parallel processing of image gray transformation based on stream processor

提出了一种基于流处理器的图像灰度变换并行处理系统。该系统采用Strom-1系列SP16HP-G220流数字信号处理器构建硬件平台,根据流处理器体系结构特点建立了适应图像灰度变换并行处理的流程序模型,并对图像灰度变换进行算法并行性分析与算法流化。对利用流化过的算法与传统灰度变换算法进行了对比实验。实验结果表明,灰度变换加速比为200,可满足机器人系统对图像处理实时性的需求。

A parallel processing system of image gray transformation is proposed based on stream processor.The hardware platform employing SP16HP-G220 DSP of Strom-1 series is developed. The program model of stream processor that adapts the parallel processing of image gray transfmmation by architectural characteristic of stream processor is established, and the image grey transfor- mation executes the analysis of parallel algorithm and algorithm of stream-oriented. The comparative experiment of stream-oriented and traditional grey transformation algorithm are carried out.The experimental results show that the speedup of grey-scale intensity image can reach 200. This system can meet the real-time requirement for image processing in robot system.