Title :
A multi-metric objective picture-quality measurement model for MPEG video
Author :
Tan, K.T. ; Ghanbari, Mohammed
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
fDate :
10/1/2000 12:00:00 AM
Abstract :
Different coding schemes introduce different artifacts to the decoded pictures, making it difficult to design an objective quality model capable of measuring all of them. A feasible approach is to design a picture-quality model for each kind of known distortion, and combine the results from the models according to the perceptual impact of each type of impairment. In this letter, a multi-metric model comprising of a perceptual model and a blockiness detector is proposed, designed for MPEG video. Very high correlation between the objective scores from the model and the subjective assessment results has been achieved
Keywords :
coding errors; video coding; MPEG video; artifacts; blockiness detector; coding schemes; decoded pictures; distortion; multi-metric objective picture-quality measurement model; objective quality model; objective scores; perceptual impact; subjective assessment results; Decoding; Detectors; Distortion measurement; Helium; Humans; Modeling; Quantization; Transform coding; Video compression; Visual system;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on