ADC	Analog to Digital Converters
BLRR	Background Light Rejection Ratio
$C_{eq}$	Equivalent integration capacitance
CS-SRCNN	Compressive Sensing-Super-Resolution Convolutional Neural Network
CW-iTOF	Continuous-wave-Time-of-Flight
DDS	Direct digital synthesis
DMD	Digital micromirror device
Fmod-eq	Frequency modulation equivalent
FSRCNN	Fast Super-Resolution Convolutional Neural Network
GPU	Graphics processing unit
iTOF	Indirect Time-of-Flight
InGaAs	Indium Gallium Arsenide
NIR	Near infrared imaging
OMP	Orthogonal matching pursuit
PSNR	Peak Signal-to-Noise Ratio
PDE	Partial differential equation
RGB	Red–Green–Blue
RMSE	Root mean square error
SSIM	Structural Similarity Index Measure
SFS	Shape-from-Shading
SLM	Spatial light modulator
SNR	Signal-to-noise ratio
SPD	Pixel Detector System
SPI	Single-Pixel Imaging
UFV	unmanned flight vehicles
USFSM	Unified Shape-From-Shading model
VIS	Visible wavelengths