Loop closure detection value

Posted by Steve Lee on
URL: http://official-rtab-map-forum.206.s1.nabble.com/Loop-closure-detection-value-tp9098.html

Hello, I'm a beginner.
I have a few questions about loop closure detection.
I use RTAB-map with lidar sensor(L515)
I wonder what the standard value is when you judge loop close detection.
Can you tell me if rtab-map uses depth values, geomagnetic sensors, or simple images when loop-close detection is done?
Or is there a document related to it?