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This paper describes an image quality assessment (IQA) metric based on the visual perception of image contents (VPIC)). In the metric, VPIC is firstly modelled by simulating the nonlinearity of luminance perception, masking properties and contrast sensitivity characteristics of human visual system (HVS). Then the source and distorted images are processed by this model respectively, and their intensity...
This paper proposes a new model to calculate minimum variance hedge ratio based on EGARCH-Copula-EWMA model. Based on Minimum variance hedging model, the new model calculates Futures yield rate by EGARCH model and Spot yield rate by EWMA model respectively when it calculates the median correlation coefficient of Futures yield rate and Spot yield rate. The new model make the nonlinear phase-matching...
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