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BBAND Index: A No-Reference Banding Artifact Predictor
arXiv - CS - Multimedia Pub Date : 2020-02-27 , DOI: arxiv-2002.11891
Zhengzhong Tu, Jessie Lin, Yilin Wang, Balu Adsumilli, and Alan C. Bovik

Banding artifact, or false contouring, is a common video compression impairment that tends to appear on large flat regions in encoded videos. These staircase-shaped color bands can be very noticeable in high-definition videos. Here we study this artifact, and propose a new distortion-specific no-reference video quality model for predicting banding artifacts, called the Blind BANding Detector (BBAND index). BBAND is inspired by human visual models. The proposed detector can generate a pixel-wise banding visibility map and output a banding severity score at both the frame and video levels. Experimental results show that our proposed method outperforms state-of-the-art banding detection algorithms and delivers better consistency with subjective evaluations.

中文翻译:

BBAND 指数:无参考条带伪影预测器

条带伪影或假轮廓是一种常见的视频压缩障碍,往往出现在编码视频的大面积平坦区域上。这些阶梯状的色带在高清视频中非常明显。在这里,我们研究了这种伪影,并提出了一种新的特定于失真的无参考视频质量模型,用于预测带状伪影,称为盲带检测器(BBAND 指数)。BBAND 的灵感来自人类视觉模型。所提出的检测器可以生成像素级条带可见性图,并在帧和视频级别输出条带严重性分数。实验结果表明,我们提出的方法优于最先进的条带检测算法,并且与主观评估具有更好的一致性。
更新日期:2020-02-28
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