PURPOSE To investigate the variation and symmetry of cone density distribution along the nasal and temporal retina of fellow eyes. METHODS An adaptive optics retinal camera (rtx1; Imagine Eyes) was used to obtain images of the parafoveal cone mosaic in 20 healthy subjects. Cone density was estimated at 250, 420, 760, and 1,300 μm eccentricity from the fovea along the nasal and temporal retina...

New inference methods for the multivariate coefficient of variation and its reciprocal, standardized mean, are presented. While there various testing procedures both parameters in univariate case, it is less known how to do setting appropriately. There some existing but they rely on restrictive assumptions underlying distributions. We tackle this problem by applying Wald-type statistics context...

Feature point (FP) detection is a fundamental step of many computer vision tasks. However, FP detectors are usually designed for low dynamic range (LDR) images. In scenes with extreme light conditions, LDR images present saturated pixels, which degrade detection. On the other hand, high (HDR) no pixels but algorithms do not take advantage all information in such frequently relies on differentia...

The coefficient of variation (CV), also known as relative standard deviation, has been used to measure the constancy Weber fraction, a key signature efficient neural coding in time perception. It long debated whether or not duration judgments follow Weber's law, with arguments based on examinations CV. However, what largely ignored this debate is that observed CVs may be modulated by temporal c...