AI	Artificial Intelligence
CV	Computer Vision
IoT	Internet of Things
PIR	Passive Infrared Sensor
SVM	Support Vector Machine
HOG	Histogram of Oriented Gradients
LBP	Local Binary Patterns
DCP	Dual Cross Patterns
DS	Dempster–Shafer (Evidence Theory)
PDF	Probability Density Function
FRR	Face Recognition Rate
EER	Equal Error Rate
FAR	False Acceptance Rate
TRR	True Rejection Rate
ORL	Olivetti Research Laboratory (Face Dataset)
FFT	Fast Fourier Transform
JPEG	Joint Photographic Experts Group
Wi-Fi	Wireless Fidelity