BRIEF	binary robust independent elementary features
BRISK	binary robust invariant scalable keypoints
CNN	convolutional neural network
DCT	discrete cosine transform
FAST	features from accelerated segment test
FR	full-reference
GPR	Gaussian process regressor
GPU	graphical processing unit
HVS	human visual system
IQA	image quality assessment
KADID	Konstanz artificially distorted image quality database
KROCC	Kendall rank order correlation coefficient
LIVE	laboratory for image and video engineering
NR	no-reference
NSS	natural scene statistics
ORB	oriented FAST and rotated BRIEF
PLCC	Pearson linear correlation coefficient
RR	reduced-reference
SPAQ	smartphone photography attribute and quality
SROCC	Spearman rank order correlation coefficient
SURF	speeded up robust features
SVR	support vector regressor
TID	Tampere image database