基于改进Sobel算法的实时边缘检测系统  

Real-Time Edge Detection System Based on Improved Sobel Algorithm

作　　者：王军辉[1] 李瑞克[1] 刘小洋[1] 

机构地区：[1]西北工业大学电子信息学院机载电子综合信息系统研究生创新实验室,西安710129

出　　处：《计算机与数字工程》2012年第6期130-132,共3页Computer & Digital Engineering

摘　　要：针对传统的Sobel边缘检测算存在对噪声敏感和缺乏自适应能力等缺点,提出了一种结合中值滤波与自适应阈值的改进So-bel边缘检测算法。并使用Verilog HDL语言在FPGA上实现了基于该算法的实时边缘检测系统。实验结果表明,该系统对环境有很强的适应能力,能够实时有效地提取出图像边缘。Aiming at the problem that the traditional Sobel algorithm has shortcomings such as sensitivity to noise and lack of adaptive capacity,an improved Sobel edge detection algorithm combined with median filtering and self-adaptive threshold is proposed.And the real-time edge detection system based on this algorithm is realized in FPGA by using Verilog HDL language.Experimental results show that the system is adaptive to the environment and can extract the edge of image efficiently and duly.

关 键 词：边缘检测 SOBEL FPGA 中值滤波 自适应阈值 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]