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Contrast discrimination by the human visual system
Biological Cybernetics, 1981In vision of everyday scenes, features requiring detection are frequently observed in the presence of suprathreshold background structures. Detection of such features is a contrast discrimination task and is often necessary for the subsequent process of recognition.
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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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Human visual system based VOP extraction
1999 IEEE Third Workshop on Multimedia Signal Processing (Cat. No.99TH8451), 1999One of the main problems associated with object based video coding systems, is how to efficiency extract objects. MPEG-4 is an object based system using video object planes (VOPs), however MPEG-4 does not define how VOPs are extracted from video sequences. This article presents a human visual system based technique for extracting objects, that combines
J.J. Soraghan, R.J. Fergusson, M. Currie
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ELECTRIC RESPONSES OF THE HUMAN VISUAL SYSTEM
Archives of Ophthalmology, 1954IN RESPONDING to the high distinction of being selected to deliver the Fourth Annual John E. Weeks Memorial Lecture, I have chosen a topic which may seem somewhat remote from the field of endeavor of the man whose memory we are honoring tonight. When John E.
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Human visual system features enabling watermarking
Proceedings. IEEE International Conference on Multimedia and Expo, 2003Digital watermarking consists of hiding subliminal information into digital media content, also called host data. It can be the basis of many applications, including security and media asset management. In this paper, we focus on the imperceptibility requirement for image watermarking. We present the main features of the human visual system (HVS) to be
J.F. Delaigle +3 more
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The human visual system described through visual illusions
2017Visual illusions have always been a fascinating subject of study. However, they are not just fascinating: they reveal insights into an understanding of our vision system. In this chapter, we show a selection of colour illusions, representative of various mechanisms of our visual system.
Alessandro Rizzi; Cristian Bonanomi +1 more
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Visual inspection systems and human sensitivity
SPIE Proceedings, 2007For long years, image processing researchers pay tremendous effort to develop visual inspection systems. To develop the visual inspection systems requires long and severe effort of image processing experts. But in many cases, human operators can detect the defects, very easily.
Seiji Hata +2 more
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Cervical cancer prevention and control in women living with human immunodeficiency virus
Ca-A Cancer Journal for Clinicians, 2021Philip E Castle, Vikrant V Sahasrabuddhe
exaly