A Perceptual Visibility Metric for Banding Artifacts
Venue
IEEE International Conference on Image Processing (2016) (to appear)
Publication Year
2016
Authors
Anil Kokaram, Chao Chen, Sang-Uok Kum, Yilin Wang
BibTeX
Abstract
Banding is a common video artifact caused by compressing low texture regions with
coarse quantization. Relatively few previous attempts exist to address banding and
none incorporate subjective testing for calibrating the measurement. In this paper,
we propose a novel metric that incorporates both edge length and contrast across
the edge to measure video banding. We further introduce both reference and
non-reference metrics. Our results demonstrate that the new metrics have a very
high correlation with subjective assessment and certainly outperforms PSNR, SSIM,
and VQM.
