立体视觉的四阶段预处理方法  

Four step pretreatment method for stereo vision

作　　者：于舒春[1] 闫继宏[1] 赵杰[1] 蔡鹤皋[1] 

机构地区：[1]哈尔滨工业大学机器人研究所,哈尔滨150080

出　　处：《吉林大学学报（工学版）》2007年第3期651-654,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2001AA422250)

摘　　要：针对LOG滤波方法的不足,提出了一种新的四阶段预处理方法。此方法分为4个阶段:①用均值滤波去除随机噪声;②用高斯滤波去除高斯噪声;③用直方图均衡化法平衡立体图对间的亮度差异;④用拉普拉斯锐化增强图像的边缘和细节。实验结果表明,此方法可以有效地去除图像的噪声,平衡立体图对间的亮度差异。In order to improve LOG filter performance for stereo vision, a four step pretreatment method was proposed. This method was divided into 4 steps, wiping out random noise by mean filter, reducing Gaussian noise by Gaussian filter, balancing brightness difference between stereo image pair through histogram equalization, and enhancing image edges and details by Laplace sharpness. Experimental results show that this four step pretreatment method can eliminate image noise and reduce brightness difference effectively.

关 键 词：自动控制技术 立体视觉 预处理 LOG滤波 直方图均衡 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]