中文说明：应用背景有详细的说明和例子，能够快速实现SURF立体匹配，对于学习SURF的初学者极其有益。关键技术 快速检测到特征点，并算出这些特征点的主方向，进而生成特征表述符，最后通过最临近搜素实现匹配。
English Description：
Application backgroundWith detailed instructions and examples, can quickly achieve SURF stereo matching, for beginners to learn SURF is very useful.Key TechnologyQuickly detect feature points, and calculate the main direction of these characteristics, and then generate a feature representation, and finally through the nearest search to achieve matching.