Title :
A distortion measure for blocking artifacts in digital video
Author :
Suthaharan, S. ; Wu, H.R.
Author_Institution :
School of Comput. & Inf. Technol., Monash Univ., Clayton, Vic., Australia
Abstract :
A method is proposed to measure the blocking artifact which is a common problem in block-based coding mechanisms used in various digital image and video coding standards. In this method, the quantitative distortion measure, the generalized block-edge impairment metric (GBIM), is modified to accommodate the local statistical characteristics, based on directional inter-pixel differences between adjoining blocks, of a video image. This modified block-edge impairment metric (MGBIM) gives results which are consistent and highly correlated with subjective evaluations
Keywords :
code standards; edge detection; statistical analysis; telecommunication standards; transform coding; video coding; block-based coding; blocking artifacts; digital image standards; digital video; directional inter-pixel differences; distortion measure; generalized block-edge impairment metric; local statistical characteristics; modified block-edge impairment metric; subjective evaluations; transform coding; video coding standards; video image; Digital images; Digital systems; Discrete cosine transforms; Distortion measurement; Image coding; Image reconstruction; Information technology; Measurement standards; PSNR; Video coding;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.652257
