MD1989's profile - activity

If you're looking for a detailed answer, I would recommend providing much more concise question - more commonly known as an SSCCE (see: http://sscce.org/). Posting a badly formatted source, with no indication about your current understanding and the specific sections you are confused by, will only get you downvoted.

It seems the images I'm trying to run this on are generating >25,000 key points - which may be causing some kind of stack issue? When I try it with images generating ~18k keypoints the issue seems to vanish.

How can I limit the number of keypoints being generated?

Hello,

I'm trying to run the example file "surf_keypoint_matcher.cpp". I've downloaded and compiled the latest version of both 'opencv' and 'opencv_contrib' for Windows and VS2010.

The application compiles and runs the feature detection fine. However when it attempts to run the brutefore matcher (in the lines of code shown below), I get a graphic's card crash and an Unknown Error.

65:  Ptr<cv::cuda::DescriptorMatcher> matcher = 
                   cv::cuda::DescriptorMatcher::createBFMatcher(surf.defaultNorm());
66:  vector<DMatch> matches;    
67:  matcher->match(descriptors1GPU, descriptors2GPU, matches);

The error I'm seeing is:

OpenCV Error: Gpu API call (unknown error) in cv::cuda::device::bf_match::matchUnrolledCached, file  C:/....../cudafeatures2d/src/cuda/bf_match.cu, line 183

I'm currently in the process of trying a bunch of different NVIDIA drivers to see if that fixes it, however I've had no luck so far. I'm running a Quadro 2000 and CUDA 6.5.

Thanks for your help!