我使用FlannBasedMatcher根據http://opencv.itseez.com/doc/tutorials/features2d/feature_homography/feature_homography.html#feature-homography。每次運行此行時,我都會收到錯誤「vector subscript out of range」double dist = matches [i] .distance;「任何人都可以幫忙嗎?我在這裏呆了一段時間..Opencv DMatch距離超出範圍
int minHessian = 400;
SurfFeatureDetector detector(minHessian);
std::vector<KeyPoint> keypoints_object, keypoints_scene;
detector.detect(img_object, keypoints_object);
detector.detect(img_scene, keypoints_scene);
//-- Step 2: Calculate descriptors (feature vectors)
SurfDescriptorExtractor extractor;
Mat descriptors_object, descriptors_scene;
extractor.compute(img_object, keypoints_object, descriptors_object);
extractor.compute(img_scene, keypoints_scene, descriptors_scene);
//-- Step 3: Matching descriptor vectors using FLANN matcher
FlannBasedMatcher matcher;
std::vector<DMatch> matches;
matcher.match(descriptors_object, descriptors_scene, matches);
double max_dist = 0; double min_dist = 100;
//-- Quick calculation of max and min distances between keypoints
for(int i = 0; i < descriptors_object.rows; i++)
{ double dist = matches[i].distance;
if(dist < min_dist) min_dist = dist;
if(dist > max_dist) max_dist = dist;
}
printf("-- Max dist : %f \n", max_dist);
printf("-- Min dist : %f \n", min_dist);
關鍵點大小爲100 – 2012-03-01 05:25:58
,它仍然不起作用。現在它顯示超時時間錯誤 – 2012-03-01 19:49:11
匹配器似乎找不到和匹配eventhough兩個圖像是相同的。比賽仍然是空的。 – 2012-03-01 19:58:33