Hi, I’m trying to test different ways to get the keypoints to use in SparsePyrLKOpticalFlow. My code at the moment more or less is the following: std::vector cv::KeyPo int> keypoints; cv::Ptr<cv::cuda::FastFeatureDetector> p = cv::cuda::FastFeatureDetector::create(); p->detect(prev_grey, keypoin…

Hi, The buffer format is RGBA in calling createSobelFilter(). Probably the format is not supported in SparsePyrLKOpticalFlow functions?

Problem with SparsePyrLKOpticalFlow and CUDA

DaneLLL December 17, 2020, 2:09am 3

Hi,
We have tried cv::cuda::createSobelFilter in the sample code:

could you check if SobelFilter works in your environment? Would like to know if it is specific to SparsePyrLKOpticalFlow APIs.