Thread Safety for SURF.create(...)

[trausch]

I have noticed that with a high computing load (LoadAvarage from 30 and higher) the detector is created, but undefinable errors occur when I use it. All input parameters (of the detector at create and the images) are identical.

SURF detector = SURF.create(...)

Has anyone else noticed this?

I use 4.6.0 on Linux.

Here is my first troubleshooting question about it:

Nn_index.h:71: error: (-215:Assertion failed) in Java

I have the below error in Java. However, it only occurs when I evaluate many frames in parallel in many threads and the load level rises above 30: opencv-4.6.0/modules/flann/include/opencv2/flann/nn_index.h:71: error: (-215:Assertion failed) queries.cols == veclen() in function ‘knnSearch’