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Several frequently used image quality metrics were selected to systematically study the correlations between them using many distorted videos, which were revised by gradual changes of usual types of distortion. A modified power-law equation was found as a general relation between the metrics. The parameters obtained by data fittings on the experimental results can be approximated as additions of independent...
Digital imaging enables us to easily obtain, store, process and display images as digital data, and it is used not only for digital cameras but also for surveillance and in-vehicle cameras, measuring devices, and so on. On the basis of our studies, a free-form optic is not suitable for a high-definition zooming capability; however, it makes optical devices smaller, thinner and lighter. Therefore,...
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