1D	One-dimensional
2D	Two-dimensional
3D	Three-dimensional
IoT	Internet of Things
TRSI	Translation, rotation, and scale invariants
CNN	Convolutional neural networks
ANN	Artificial neural network
OM	Orthogonal moments
OP	Orthogonal polynomials
TTR	Three-term recurrence
FOBP	Fast overlapped block processing
SVM	Support vector machine
GN	Gaussian noise
SPN	Salt-and-Pepper noise
SPKN	Speckle noise