超长指令字DSP上的数字图像处理算法优化方法  

Optimization Methods of Digital Image Process Algorithm on VLIW DSP

作　　者：张帆[1] 葛颖增[2] 窦勇[1] 

机构地区：[1]国防科大计算机学院,长沙410073 [2]河南公安高等专科学校信息安全系,郑州450002

出　　处：《微计算机应用》2008年第10期1-6,共6页Microcomputer Applications

基　　金：国家自然科学基金资助项目(606633050)

摘　　要：数字图像处理(Digital Image Processing)广泛应用于航空航天、生物医学工程、通信工程、工业和工程、军事公安、文化艺术等方面。由于一些应用的实时性和环境要求,通常采用数字信号处理器(Digital Signal Processing,简称DSP)处理图像。采用超长指令字(Very Long Instruction Word,简称VLIW)体系结构的DSP由于功耗低、硬件结构简单和并行性好等优点,在实时图像处理应用中使用广泛。根据图像处理算法特点和VLIW DSP体系结构特点提出在VLIW DSP上优化图像处理算法的一般方法,包括存储优化方法和指令级并行优化方法。最后采用提出的方法对多个常用的图像处理算法优化,试验结果表明有较好优化效果。Digital image processing widely used in aerospace, bio - medical engineering, communications engineering, industrial and engineering, military and police, arts and culture, and so on. Since the real - time and environmental requirements, some applications often use digital signal processors to process image. The DSP with VLIW architecture widely used in real - time image processing appli- cations because of advantage of low power consumption, simple hardware and good parallel. According to image processing algorithms features and VLIW DSP architecture features , proposed some general optimization of image processing algorithms on VLIW DSP, including the storage optimization method and instruction - level parallelism optimization methods. Finally used the methods on a number of commonly used image - processing algorithms, test results showed good results.

关 键 词：数字图像处理 数字信号处理 超长指令字 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TP314[自动化与计算机技术—计算机科学与技术]