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PCM
2009
Springer

Image Quality Assessment Using Spatial Frequency Component

12 years 4 months ago
Image Quality Assessment Using Spatial Frequency Component
Image quality assessment (IQA) is a crucial technique in perceptual image/video coding, because it is not only a ruler for performance evaluation of coding algorithms but also a metric for ratio-distortion optimization in coding. In this paper, inspired by the fact that distortions of both global and local information influence the perceptual image quality, we propose a novel IQA method that inspects these information in the spatial frequency components of the image. The distortion of the global information mostly existing in low spatial frequency is measured by a rectified mean absolute difference metric, and the distortion of the local information mostly existing in high spatial frequency is measured by SSIM. These two measurements are combined using a newly proposed abruptness weighting that describes the uniformity of the residual image. Experimental results on LIVE database show that the proposed metric outperforms the SSIM and achieves performance competitive with the state-of-th...
Guangyao Cao, Luhong Liang, Siwei Ma, Debin Zhao
Added 26 Jul 2010
Updated 26 Jul 2010
Type Conference
Year 2009
Where PCM
Authors Guangyao Cao, Luhong Liang, Siwei Ma, Debin Zhao
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