一种新的非参数变换定义及立体匹配方法

提出了一种基于邻域差值的非参数变换立体匹配方法.该非参数变换方法是在图像中选定一个点,然后再找到与这个点水平方向相隔一定距离的一点,以这两个点为中心各选取一个窗口,比较两个窗口中对应像素的灰度大小差异,以这个差异值取代原图像的像素灰度值,这样产生的一个新的图像就是本文方法变换后的图像.将左右图像经过这种变换后,求变换后左右图像上点的匹配来产生立体视差.实验表明,在同等条件下,尤其存在噪声时,该方法与非参数rank变换和census变换比较,能得到更为准确的视差.

New Definition of Non-parametric Transform for Stereo Matching

A new Non-parametric transform for stereo matching was proposed.In the image,one point and the other one in a fixed interval on the same scan line were chose.Two windows which center are the two point were chose respectively,the two windows were transform windows and interval windows,the original image was substituted with the different of transform windows and interval windows,both of the original lest and right image were transformed into new images.Stereo matching algorithm was used in transformed images...