opencv SURF特征点匹配时描数字descriptor提取失败
白菜选手 2015-04-21 11:04:39 用下述代码对视频提取每帧,并对相邻两帧进行SURF匹配
SurfDescriptorExtractor extractor;
Mat descriptors1, descriptors2;
extractor.compute(srcImage1, keyPoint1, descriptors1);
extractor.compute(srcImage2, keyPoint2, descriptors2);
但某帧,descriptors1和descriptors2提取失败,cols和type等为0,想问一下这是什么原因,谢谢!