Enhanced Block-Matching and 3D Filter for HEVC Screen Content Image Denoising
Mengmeng Zhang, Shuai Wang, Zhi Liu · 2017
Summary form only given. Screen content has been an important extension of high efficiency video coding widely used in wireless display and screen sharing. Reconstructed screen content images have distortions because of the quantization of transforming coefficients. Hence, this paper proposes an enhanced block-matching and 3D filter (BM3D) to attenuate the distortion by block classification and block segmentation. Experimental results show that the proposed algorithm achieves not only a peak signal-to-noise ratio increase but also subjective visual quality improvement for HEVC screen content images denoising.