Repository for OpenCV's extra modules

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opencv_contrib/modules/cudafeatures2d

History

Troels Ynddal 48b5dedb0b Merge pull request #3632 from troelsy:4.x ... Fix a bug in knnMatchConvert when a feature couldn't be matched #3632 After I started using a mask with `knnMatchAsync`, I found that the result from `knnMatchConvert` would be clipped at random. Investigating the issue, I found that `knnMatchAsync` will initialize all `trainIdx` to `-1`, which will be overwritten by the CUDA kernel. A mask can be used to prevent certain features from being matched and this will prevent the CUDA kernel from setting the match distance. `knnMatchConvert` is not properly incrementing the pointers when `trainIdx == -1`, so an unmatched feature will get it stuck at `if (trainIdx == -1)`. Eventually the outer for-loop finishes and returns a vector with the matches up until the first missing match distance. My solution is to increment the counters the same way as a successful iteration would. ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake		1 year ago
..
include/opencv2	Merge pull request #3296 from gvcallen:4.x	3 years ago
misc/python/test	Merge pull request #3296 from gvcallen:4.x	3 years ago
perf	Merge pull request #3296 from gvcallen:4.x	3 years ago
src	Merge pull request #3632 from troelsy:4.x	1 year ago
test	Merge pull request #3296 from gvcallen:4.x	3 years ago
CMakeLists.txt	build: add first class cuda support	1 year ago