Sample impementation of a stereo camera calibration including rectification using CvCalibFilter based on the forum post of Rafael Mu駉z Salinas at http://tech.groups.yahoo.com/group/OpenCV/message/48237

This technique allows to rectify stereo pairs when calibration data (perspective projection matrices) are not available. The only required input are point correspondences

双目视觉中标定的参数对双目镜头进行立体校正，可以得到极线校正。-The binocular vision calibration parameters for stereo calibration of the binocular cameras, can get very line correction.

本代码可有效提取图片的sift特征，适用于基于sift特征提取的对极校正-This code can extract the feature of sift in a image efficiently and can be applied to stereo rectify.