[C++ GMS]，why not use GPU ORB to detect and compute keypoints？

JiawangBian / GMS-Feature-Matcher

GMS: Grid-based Motion Statistics for Fast, Ultra-robust Feature Correspondence (CVPR 17 & IJCV 20)

http://jwbian.net/gms

BSD 3-Clause "New" or "Revised" License

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Closed klob closed 7 years ago

klob commented 7 years ago

I am confused about that I got less keypoints when I used GPU ORB to detect keypoints. opencv3.2.0

JiawangBian commented 7 years ago

I don't know the reason, but I am sure that the GPU implementation of ORB is not as good as the CPU version in OpenCV library.

klob commented 7 years ago

Thanks，I also found GPU_ORB crashed using Multithread.