-OpenCV static matrices changed to Eigen matrices. The average code speed-up is 16% in tracking and 19% in mapping, w.r.t. times reported in the ORB-SLAM3 paper.
-New calibration file format, see file Calibration_Tutorial. Added options for stereo rectification and image resizing.
-Added load/save map functionalities.
-Added examples of live SLAM using Intel Realsense cameras.
-Fixed several bugs.