基于FPGA的图像维纳滤波算法设计  

Design of Image Wiener Filtering Based on FPGA

作　　者：赵倩[1] 潘虎[1] 

机构地区：[1]上海电力学院电子信息与工程学院

出　　处：《上海电力学院学报》2013年第1期87-91,共5页Journal of Shanghai University of Electric Power

基　　金：教育部科学技术研究重点项目(210072);上海市教育委员会科研创新项目(10ZZ118)

摘　　要：针对软件去噪算法难以满足实时图像处理的问题,采用基于FPGA的硬件滤波算法,该方案相对于软件算法具有高度的并行性和灵活的硬件可编程性.采用Matlab和QuartusII的联合测试平台,分析和优化了基于FPGA的维纳滤波算法的设计,同时通过实验结果比较了十字型与3×3型滤波窗口设计对滤波效果的影响,实验证明3×3窗口的滤波效果比十字窗口的滤波效果更好.Image filtering algorithms based on software do not often meet real-time image pro- cessing system. The solution to filtering algorithms based on FPGA not only provides an effective method to realize real-time parallel processing of large volume of data but also possesses the flexi- bility of hardware programability. Testing platform combined with Matlab and QuartuslI is adopted to analyze and optimize wiener filtering algorithm based on FPGA. The filtering results of the de- signed methods of cross window and are compared with those of the 3 x 3 window, with the con- clusion that the performance of the 3 x 3 window is better.

关 键 词：可编程门阵列 图像预处理 图像滤波 维纳滤波 

分 类 号：TP715[自动化与计算机技术—检测技术与自动化装置]