Objective Measurement of Compressed Digital Television Picture Quality

We have introduced “criticality” as a quantitative measure of the difficulty in digitally coding for the purpose of analyzing picture quality of television programs statistically. Picture quality in digital coding depends greatly on picture characteristics such as spatial details and motion. Therefore it is not easy to confirm how well a system performs from only a subjective assessment test, in which a limited number of test sequences are used. — A definition of criticality is proposed, and results of criticality measurement for broadcast television programs are reported. Also proposed is a method to obtain a statistical distribution of picture quality for digital television programs. By measuring the frequency of occurrence of criticality and relating it to subjective picture quality, it becomes possible to obtain statistical quality distribution in digital television broadcasting.

Print ISSN

0036-1682

Published

1998-06

Content type

Original Research

DOI

10.5594/J08388