RGB-D	Red, green, blue-depth
IR	Infrared
AD	Absolute difference
BT	Sampling-insensitive absolute difference of Birchfield and Tomasi
SAD	Sum of absolute difference
ZSAD	Zero-mean sum of absolute difference
NCC	Normalized cross-correlation
ZNCC	Zero-mean normalized cross-correlation
LoG	Laplacian of Gaussian
BilSub	Background subtraction by bilateral filtering
Census	Census transform
Window	Window-based stereo matching
SGM	Semi-global matching
GC	Graph cut stereo matching
ToF	Time-of-flight
LiDAR	Light detection and ranging
FOV	Field of view