Function to draw epipolar lines

用于摄影测量中，已知内外方位元素，用于绘制核线-For Photogrammetry, known outside elements, used to draw lines nuclear

Secondly，the stereo matching way based on feature has been studied，takes the preprocess method fit for the task．In image segmentation，this paper proposes serfadaptive threshold method which has been changed a bit to make it more suitable for the