leunam's profile - activity

I got that -> So I think the Documentation should be corrected. Who is able to do that?

Oh, that's sad - it changes the behaviour. You can not prefilter which descriptor should be matched against which, only exclude some totally, which could also be done by just leaving them out of the query vector. I didn't read the multi index hashing paper - maybe it has the disadvantage that you can only always match against all trainDescriptors?

This should be fixed in the Documentation, at multiple places... Who can fix the wrong Documentation?

The Mask does not work as the documentation states: ( docs.opencv.org/3.1.0/db/d39/classcv_1_1DescriptorMatcher.html#a8737756123c4aba88ae5fc15982e0dee ) Optional mask (or masks) can be passed to specify which query and training descriptors can be matched. Namely, queryDescriptors[i] can be matched with trainDescriptors[j] only if mask.at<uchar>(i,j) is non-zero.

But the implementation only lets you choose which queryDescriptors shall be matched (against all trainDescriptors, no choice against which of them).

GitHubCode: github.com/opencv/opencv_contrib/blob/master/modules/line_descriptor/src/binary_descriptor_matcher.cpp#L197

Am I mistaken or is the documentation inconsistent with the implementation. The documentations states what would actually be desirable here.