Guidance for extracting descriptors cooresponding to the detected key points

[SRainGit]

Hi again,

I'm sorry. But I am afraid you need to help me again.

There is no guidance in README for how to extract descriptors. Specifically, it's about how to extract the features using the saved key points that generated from save_keypoints.py. I trained the network using kitti/train_descriptor.py but don't know how to use the trained model to extract features with saved keypoints as input.

There are several places where use from kitti import options_descriptor, but couldn't find out how to use it. I am confused. Thanks at first.