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Visualization system for human mobility analysis
2015 14th RoEduNet International Conference - Networking in Education and Research (RoEduNet NER), 2015City-scale events, such as festivals, sport events, concerts gather thousands of people in different areas of a city. By installing large area Wi-Fi routers which record the presence of people using devices such as smartphones and tables, the density and the movements of the crowds can be estimated and classified.
Adriana Draghici +2 more
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The Effects of Atabrine on the Human Visual System
American Journal of Ophthalmology, 1946Atabrine (Quinacrine hydrochloride) is widely used today in the treatment of malaria. A review of the available literature fails to reveal reference to any temporary or permanent effects of this drug upon the human visual system. To this end, a study was undertaken to investigate (a) visual changes with increasing blood-atabrine levels, (b) any ...
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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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Suprathreshold Intrinsic Dynamics of the Human Visual System
Neural Computation, 2003Intrinsic high-frequency neural activities have been observed in the visual system of several species, but their functional significance for visual perception remains a fundamental puzzle in cognitive neuroscience. Spatiotemporal integration in the human visual system acts as a low-pass filter and makes the psychophysical observation of high-frequency
Gopathy Purushothaman +2 more
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Lightness computation by the human visual system
Journal of Electronic Imaging, 2017A model of achromatic color computation by the human visual system is presented, which is shown to account in an exact quantitative way for a large body of appearance matching data collected with simple visual displays. The model equations are closely related to those of the original Retinex model of Land and McCann.
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The human visual system averages speed information
Vision Research, 1992It has been known for many years that human observers are unable to detect modest accelerations and decelerations in moving visual stimuli. We find that human observers can integrate speeds over many dots, moving at different speeds, producing a global speed percept analogous to the global direction percept first reported by Williams, D. W. and Sekuler,
Watamaniuk, Scott N. J., Duchon, Andrew
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Capability of the human visual system
SPIE Proceedings, 2003Much of the guidance provided to designers of visual displays is highly simplified because of historical limitations of visual display hardware and software. Vast improvements have been made in processors, communication channel bandwidth, and display screen performance over the past 10 years; and the pace of these visual system improvements is ...
David G. Curry +2 more
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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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Image Processing by the Human Visual System
1991The processing power of the human visual system is truly awe-inspiring. Hundreds of millions of years of natural selection have led to the evolution of a visual system whose rapidity and accuracy is quite breathtaking. Images flashed on a screen can often be identified on the basis of only 100 to 150 ms of processing (see Thorpe & Imbert, 1989 ...
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