Results 281 to 290 of about 2,630,775 (356)
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Color blindness and a color human visual system model
IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans, 2000A physiologically motivated human color visual system model which represents visual information with one brightness component (A) and two chromatic components (C/sub 1/ and C/sub 2/) is used to create stimuli for testing the color perception of deuteranomalous trichromats. Two experiments are performed.
C.E. Martin +3 more
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Image-detector model and parameters of the human visual system*
Journal of the Optical Society of America, 1973An image-detector model of the visual system is described. Analysis of detection-probability data combined with signal-to-noise analysis of contrast-sensitivity data yield the fundamental visual-system parameters required to predict image-detection performance.
A. Schnitzler
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Applications Of Physiological Human Visual System Model To Image Compression
SPIE Proceedings, 1984AbstractOver the past ten years many mathematical models of the human visual system (HVS) have been proposed for image processingapplications.1 -8 It has become clear that incorporating factors accounting for human perception can significantly improve overall picturequality.
Kou-Hu Tzou, To R. Hsing, J. G. Dunham
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The squirrel as a rodent model of the human visual system
Visual Neuroscience, 2006Over the last 50 years, studies of receptive fields in the early mammalian visual system have identified many classes of response properties in brain areas such as retina, lateral geniculate nucleus (LGN), and primary visual cortex (V1). Recently, there has been significant interest in understanding the cellular and network mechanisms that ...
Stephen D, Van Hooser, Sacha B, Nelson
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Human visual system models in Digital Watermarking
2015 International Conference and Workshop on Computing and Communication (IEMCON), 2015In this paper, a review of Human Visual System (HVS) based Digital Watermarking schemes are presented with their mathematical model. The HVS system exploits several properties of human eyes in spatial as well as frequency domain. In spatial domain, Just Noticeable Difference (JND) along with Luminance Sensitivity (LS), Contrast Masking (CM) and some ...
Hirak Mazumdar +5 more
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Mathematical Model of the Human Visual System
Optical Memory and Neural Networks, 2018A mathematical model of visual system of the human observing images on optoelectronic device display is proposed. The model allows to formalize in linear approximation the physiological processes of registration and transformation of halftone object images in the human visual system in the presence of external and internal noise, and to estimate the ...
Y. S. Gulina +2 more
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Modeling the masking effect of the human visual system with visual attention model
2009 7th International Conference on Information, Communications and Signal Processing (ICICS), 2009It is well known that the human visual system (HVS) cannot sense all changes in an image/video due to its underlying physiological and psychological mechanisms. We propose a complete masking estimation model for image/video in this paper. In our model, a very important mechanism of the HVS, visual attention, is incorporated to the existing just ...
Anmin Liu, Maansi Verma, Weisi Lin
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Clustering Model Based on the Human Visual System
2021Clustering involves the process of dividing a collection of abstract objects into a number of groups, which are integrated with similar elements. Several clustering methods have been introduced and developed in the literature with different performance levels. Among such approaches, density algorithms present the best advantages, since they are able to
Erik Cuevas +3 more
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Simulation of human visual perception properties using the human visual system model
SPIE Proceedings, 2003This article deals with evaluation of subjective and objective image quality. Another way how to assess an image quality is based on human vision models. Special model of the human visual system has been designed, tuned, tested. Its suitability for the image quality assessment has been evaluated using compressed images and by comparison of modeling ...
Jaroslav Dusek, K. Roubik
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JPEG2000 compression coding using human visual system model
Journal of Electronics (China), 2005In order to apply the Human Visual System (HVS) model to JPEG2000 standard, several implementation alternatives are discussed and a new scheme of visual optimization is introduced with modifying the slope of rate-distortion. The novelty is that the method of visual weighting is not lifting the coefficients in wavelet domain, but is complemented by code
Jiang Xiao, Chengke Wu
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