A perceptual visibility metric for banding artifacts
A perceptual visibility metric for banding artifacts
复制标题
带状伪影的感知可见性指标
DOI：
10.1109/icip.2016.7532722
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
A. Kokaram
中科院分区：
文献类型：
--
作者：
Yilin Wang;S. Kum;Chao Chen;A. Kokaram
条带化是一种常见的视频伪影，它是由粗量化压缩低纹理区域引起的。相对较少的以前的尝试存在，以解决捆绑和没有纳入主观测试校准测量。在本文中，我们提出了一种新的指标，该指标结合了边缘长度和边缘对比度来测量视频条带。我们进一步介绍了参考和非参考指标。我们的研究结果表明，新的指标有一个非常高的相关性与主观评价，肯定优于PSNR，SSIM，和VQM。
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.