基于FPGA的双边滤波器设计  

Design of a Bilateral Filter Based on FPGA

作　　者：张爱杰 刘士建[1,2,3] 张瑞 李冰[1,2,3] ZHANG Aijie;LIU Shijian;ZHANG Rui;LI Bing(Shanghai Institute of Technical Physics,Shanghai 200083,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Infrared System Detection and Imaging Technology,Chinese Academy of Sciences,Shanghai 200083,China)

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]中国科学院大学,北京100049 [3]中国科学院红外探测与成像技术重点实验室,上海200083

出　　处：《红外技术》2019年第1期13-17,共5页Infrared Technology

基　　金：国家"十二五"国防预研项目;上海物证重点实验室基金(2011xcwzk04);中国科学院青年创新促进会资助(2014216)

摘　　要：针对串行架构的处理器如ARM和DSP等实现双边滤波算法消耗资源过多的情况,提出了一种基于FPGA加速的双边滤波去噪的实现方法。根据双边滤波算法的原理以及FPGA的硬件资源,充分发挥FPGA在并行计算上的优势,在滤波器的系数生成和除法操作上进行了优化。在减少了FPGA所消耗的资源的同时,保证了图像去除噪声的实时性,从而为后期的视频采集与传输系统奠定了一个良好的开端。Considering that general serial processors,such as ARM and DSP,consume too many resources,we propose a method for a bilateral filter based on FPGA acceleration.According to the theory of a bilateral filter and the hardware resources that an FPGA can provide,we optimize the coefficient generation and division operation of the filter in the FPGA,which takes full advantage of the parallel computing capabilities in the FPGA.This ensures that the image is filtered in real-time,while reducing the resources consumed by the FPGA,and provides a good foundation for the later design of the video capture and transmission systems.

关 键 词：双边滤波 FPGA加速 实时图像处理 

分 类 号：TN215[电子电信—物理电子学]