[Tutorial] RGBD mapping using iPad

src: https://github.com/gisbi-kim/depth-mapping-matlab/ Recommended to see these videos first - 1. using RTAB-Map app, run a session https://www.youtube.com/watch?v=69WoEvwzc14&t=4s - 2. the keyframe data extraction https://www.youtube.com/watch?v=WcRcJCH67ds