CUDA equivalent of estimateRigidTransform in OpenCV 3

Question

I'm working on a video stabilisation project using OpenCV, and I've got a CPU implementation working but the performance needs improvement so I'm trying to move most of the processing to the GPU.

The current implementation primarily uses these four OpenCV functions:

• cv::goodFeaturesToTrack
• cv::calcOpticalFlowPyrLK
• cv::estimateRigidTransform
• cv::warpAffine

So far I've found the following equivalents on the GPU:

• cv::cuda::createGoodFeaturesToTrackDetector
• cv::cuda::SparsePyrLKOpticalFlow
• cv::cuda::warpAffine

Is there a CUDA equivalent of estimateRigidTransform?

Answer 1

OpenCV doesn't have implementation for estimateRigidTransform on CUDA. There is opencv based project on github, which has functions for computing homographies and estimating rigid transforms: https://github.com/danielsuo/cuSIFT

Here is function you need: https://github.com/danielsuo/cuSIFT/blob/master/extras/rigidTransform.cu