Content-based power allocation for perception-friendly SoftCast

Shaoshuai Gao; Mengyu Jiao; Shouxin Zong

doi:10.1117/12.2539764

14 August 2019 Content-based power allocation for perception-friendly SoftCast

Shaoshuai Gao, Mengyu Jiao, Shouxin Zong

Proceedings Volume 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019); 1117909 (2019) https://doi.org/10.1117/12.2539764
Event: Eleventh International Conference on Digital Image Processing (ICDIP 2019), 2019, Guangzhou, China

Abstract

Gradient based image SoftCast (G-Cast) reconstructs the image by transmitting gradients and uses structural similarity (SSIM) as the image quality assessment standard. The reconstructed image is more consistent with the perception of human vision system, however, it is a little too smoothed. In order to overcome this disadvantage, a perception-friendly SoftCast scheme using content-based power allocation is put forward in this paper. Firstly, an image block classification algorithm is applied to divide the image into edge blocks, detail blocks and smooth blocks. Secondly, gradients in different blocks are allocated to different power factors according to their importance. As a result, the scheme improves the subjective quality of reconstructed images significantly. At the same time, the objective quality of the scheme is also improved.

Citation Download Citation

Shaoshuai Gao, Mengyu Jiao, and Shouxin Zong "Content-based power allocation for perception-friendly SoftCast", Proc. SPIE 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019), 1117909 (14 August 2019); https://doi.org/10.1117/12.2539764

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