How to use AKAZE descriptor extractor with KAZE keypoint detector
NOVICE question: http://docs.opencv.org/3.0-beta/modul... states that AKAZE descriptors can only be used with KAZE or AKAZE keypoints. Try to avoid using extract and detect instead of operator() due to performance reasons.
so I tried to use KAZE detector with AKAZE descriptor extractor:
Ptr<Feature2D> detector = cv::KAZE::create();
Ptr<DescriptorExtractor> extractor = cv::AKAZE::create();
...
vector<KeyPoint> keypoint;
Mat features;
detector->detect(img, keypoint);
extractor->compute(img, keypoint, features); //<- error at this line
generate the following error:
OpenCV Error: Assertion failed (0 <= kpts[i].class_id && kpts[i].class_id < static_cast<int>(evolution_.size()))
in cv::AKAZEFeatures::Compute_Descriptors, file ..\..\..\src\opencv\modules\features2d\src\kaze\AKAZEFeatures.cpp, line 712
However, when both detector and extractor are the same, there is no problem. Any help is appreciated, thanks. JC
Did you find a solution for this. I got the same error. Any help from your end.