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1 Journal of Artificial Intelligence and Soft Computing Research

1 2011

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A two-layer neural system for reduced-reference visual quality assessment

Redi J., Gastaldo P., Zunino R.

Journal of Artificial Intelligence and Soft Computing Research

2011

Vol. 1, No. 1

27--41

Real-time assessment of visual quality can be efficiently supported by reduced-refe-rence paradigms, which require a very limited amount of information on the original signal, easily embeddable in the signal itself. In this paper, a reduced-reference system for image quality assessment is proposed, based on a small sized numerical description of images encoding the luminance distribution and its variations due to visual distortions. The assessment paradigm is implemented exploiting machine learning tools and articulates in two phases: first, a Support Vector Machines-based classifier identifies the kind of distortion affecting the image; then, the actual quality level of the distorted image is computed by a specifically trained SVM regressor. The general validity of the approach is supported by experimental validations based on subjective quality data.