PGF-BIQA: Blind image quality assessment via probability multi-grained cascade forest

Líu, Hao; Li, Ce; Jin, Shangang; Gao, Weizhe; Liu, Fenghua; Du, Shaoyi; Ying, Shihui

doi:10.1016/j.cviu.2023.103695

Cited by 3 publications

(1 citation statement)

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“…To quantitatively compare the advantages and disadvantages of the denoising performance, we used the peak signal-to-noise ratio [44] (PSNR) and structural similarity [45] (SSIM) for quantitative evaluation and analysis. In recent research, new methods [46][47][48][49] for image quality assessment have been proposed, which have potential implications for the performance evaluation of image denoising algorithms.…”

Section: Evaluation Metricmentioning

confidence: 99%

FEUSNet: Fourier Embedded U-Shaped Network for Image Denoising

Li,

Han,

Yuan

et al. 2023

Entropy

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Deep convolution neural networks have proven their powerful ability in comparing many tasks of computer vision due to their strong data learning capacity. In this paper, we propose a novel end-to-end denoising network, termed Fourier embedded U-shaped network (FEUSNet). By analyzing the amplitude spectrum and phase spectrum of Fourier coefficients, we find that low-frequency features of an image are in the former while noise features are in the latter. To make full use of this characteristic, Fourier features are learned and are concatenated as a prior module that is embedded into a U-shaped network to reduce noise while preserving multi-scale fine details. In the experiments, we first present ablation studies on the Fourier coefficients’ learning networks and loss function. Then, we compare the proposed FEUSNet with the state-of-the-art denoising methods in quantization and qualification. The experimental results show that our FEUSNet performs well in noise suppression and preserves multi-scale enjoyable structures, even outperforming advanced denoising approaches.

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