ADC	analog–digital converter
AO	acousto–optic
AOD	acousto–optic deflector
APD	avalanche photodiode
AUV	autonomous underwater vehicle
BRDF	bidirectional reflection distribution function
CAD	computer-aided design
CCD	charge-coupled device
CMM	coordinate measurement machine
CMOS	complementary metal-oxide-semiconductor
CW	continuous wave
DLP	digital light processor
DMD	digital micro-mirror device
DOE	diffractive optical element
DoF	degree of freedom
EO	electro–optic
EOD	electro–optic deflector
FoV	field of view
GCPS	gray code phase stepping
GLV	grating light valve
IMR	inspection, maintenance and repair
IMU	inertial measurement unit
INS	inertial navigation system
IR	infrared
KTN	potassium tantalate niobate
LCD	liquid crystal display
LED	light emitting diode
LiDAR	light detection and ranging
LLS	laser line scanner
MEMS	microelectromechanical systems
MFPS	multi-frequency phase stepping
MPPC	multipixel photon counter
NTU	nephelometric turbidity units
OPA	optical phased array
PMT	photomultiplier tube
ROV	remotely operated vehicle
SfM	structure from motion
SiPM	silicon photomultiplier
SLAM	simultaneous localization and mapping
SLM	spatial light modulator
SNR	signal-to-noise ratio
SONAR	sound navigation ranging
SPAD	single-photon avalanche photodiode
SVP	single view-point
TCSPC	time-correlated single-photon counting
ToF	time of flight
UUV	unmanned underwater vehicle