Blind image quality assessment for screen content images based on patch-wise multi-order derivatives

Wenming Yang; Zhengda Zeng; Wen Sun; Qingmin Liao

doi:10.1117/12.2503354

9 August 2018 Blind image quality assessment for screen content images based on patch-wise multi-order derivatives

Wenming Yang, Zhengda Zeng, Wen Sun, Qingmin Liao

Proceedings Volume 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018); 108064S (2018) https://doi.org/10.1117/12.2503354
Event: Tenth International Conference on Digital Image Processing (ICDIP 2018), 2018, Shanghai, China

Abstract

The Screen content images (SCIs) are images containing textual and pictorial regions, which have become more and more connected with our daily life with the widespread adoption of multimedia applications. In particular, the image quality assessment (IQA) of SCIs is important because of its good property to guide and optimize lots of image processing systems. However, the no-reference (NR) IQA algorithms receive little attention and achieve unsatisfactory performance. Hence, this paper proposes a novel no-reference IQA method based on patch-wise multi-order derivatives for SCIs. This method includes two stages: patch-wise image quality evaluation and quality pooling. The first stage focuses on learning visual quality of local regions. Two features of image patches are extracted: multi-order derivative statistics, multi-order derivative histograms, which respectively describe the global and local information of the multiorder derivatives. Then the support vector regression (SVR) is applied to measure visual quality of image patches given a set of extracted features. The second stage aims at pooling patch-wise quality to an overall quality score with weights derived from entropy of gradient information of SCIs. Experimental results show that our method obtains superior performance against state-of-the-art NR-IQA approaches on the SIQAD database of SCIs, and also achieves competitive performance against state-of-the-art FR-IQA methods for SCIs.

Citation Download Citation

Wenming Yang, Zhengda Zeng, Wen Sun, and Qingmin Liao "Blind image quality assessment for screen content images based on patch-wise multi-order derivatives", Proc. SPIE 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018), 108064S (9 August 2018); https://doi.org/10.1117/12.2503354

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KEYWORDS

Image quality

Databases

Feature extraction

Neodymium

Photonic integrated circuits

Visualization

Image segmentation

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