ICP	Iterative Closest Point
FGR	Fast Global Registration
SIFT	Scale-Invariant Feature Transform
SURF	Speeded Up Robust Features
SGM	Semi-Global Matching
RUM	Recurrent Update Module
AGCL	Adaptive Group Correlation Layer
ORB	Oriented FAST and Rotated BRIEF)
RANSAC	Random Sample Consensus
FPFH	Fast Point Feature Histograms
TSDF	Truncated Signed Distance Function
SLAC	Simultaneous Localization and Calibration
CNN	Convolutional Neural Network
RMSE	Root Mean Squared Error