Quality Assessment of Motion Picture Transmission over Digital Channels
Keywords:
digital broadcasting, digital cable television, head-end, digital channels, transport stream, subjective test, video quality analysisAbstract
Digital technology forms our environment day by day and we can enjoy its advantages in more and more fields everyday. As a matter of fact television and computer networking technology take over the leading role. The real error analysis of digital channels is the best way for modeling the behaviour of motion picture transmission over digital channels. In this paper digital transmission has been focused on considering such factors as noises, disturbances and movement as well as the mathematical modeling of digital transfer channels has been shown. The paper first presents the most important standardized subjective quality assessment methods described in the ITU-R BT.500 recommendation. We briefly summarise why these subjective tests are so important. Finally, we discuss the implementation of the new subjective video quality measurement related to impaired digital quality television programs. Our aim is to improve these subjective picture quality assessment methods to get sophisticated results, which correlate better with objective picture quality test results.