FRP	Freezing Robot Problem
RGB-D	Red, Green, Blue-Depth
HSV	Hue, Saturation, and Value
FoV	Field of View
SSD	Single Shot Detector
GPU	Graphics Processing Unit
CPU	Central Processing Unit
LOP	Last Observed Position
SLAM	Simultaneous Localization and Mapping
ROS	Robot Operating System
CNNs	Convolutional Neural Networks
YOLO	You Only Look Once
R-CNN	Regions with Convolutional Neural Network
SIFT	Scale Invariant Feature Transformation
HOG	Histograms of Oriented Gradient
ROI	Region of Interest
PID	Proportional Integral Derivative
WC	Walking Counter
Exp.	Experiment
Elev.	Elevator
lab	Laboratory
ADHD	Attention-Deficit Hyperactivity Disorder
fps	Frame per Second