基于CORDIC的高速Sobel算法实现  

An implementation of high speed Sobel based on CORDIC

作　　者：黄虎[1] 杨丁[1] 雷宇辉 谢佳讯 陈诗瑶 邹瑜 Huang Hu;Yang Ding;Lei Yuhui;Xie Jiaxun;Cheng Shiyao;Zou Yu(College of Information Science and Technology,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学信息科学与技术学院,四川成都610059

出　　处：《电子技术应用》2018年第9期87-90,共4页Application of Electronic Technique

摘　　要：为提高图像边缘检测的处理速度,提出一种基于CORDIC的高速Sobel算法实现。在FPGA平台上,在并行处理数据和流水线操作的基础上,使用扩展数据位和覆盖所有角度的流水线型CORDIC,提高Sobel的运算效率。实验结果表明,在保证运算精度的前提下,该算法相比传统加速方法可提速63.53%。The acceleration method proposed in this paper aims to improve the processing speed of image edge detection.On the basis of parallelism and pipeline technique,it works in the FPGA platform and uses extended data bits and the pipelined CORDIC algorithm covering all angles so that the efficiency of Sobel algorithm can be improved.The experimental results show that compared with the traditional acceleration method,under the premise of ensuring the operation precision,this method can speed up the efficiency by 63.53 percent.

关 键 词：边缘检测 CORDIC算法 硬件加速器 可编程器件 

分 类 号：TN911.73[电子电信—通信与信息系统]