منابع مشابه
Modeling Daytime and Night Illumination
Modeling illumination of outdoor objects by natural light sources the Sun, the Moon and the stars is a very difficult problem due to highly complex physics of light rays and the Earth’s atmosphere. Although there are many studies in the literature on modeling of astronomic and atmospheric phenomena, of emission, scattering and absorption of light rays through the atmosphere, and of the illumina...
متن کاملVehicle Detection under Day and Night Illumination
Effective detection of vehicles in urban traffic scenes can be achieved by exploiting image analysis techniques. Nevertheless, vehicle detection in daytime and at night can’t be approached with the same image analysis algorithms, due to the strongly different illumination conditions. This paper describes the two different sets of image analysis algorithms that have been used in the VTTS system ...
متن کاملStudy on Optimization of Night Illumination in Expressway Long Tunnels
Night illumination of expressway long tunnels in China was far from drivers’ demand and caused lots of traffic accidents and electricity wasting. In order to solve this problem, reasonable night luminosity in expressway long tunnels in China was studied. Based on a visual disturbance generation mechanism, the mistakes in night illumination of Chinese expressway long tunnels were analyzed. Real ...
متن کاملMulti-Vehicle Tracking Under Day and Night Illumination
Traffic surveillance plays a vital role in computer vision and Intelligent Transportation Systems (ITS). Image analysis provides several effective techniques to detect moving objects in images. Thus, it has been extensively used for traffic monitoring systems. Recently, the problem of detecting and tracking vehicles is an important emerging research area for intelligent transportation systems. ...
متن کاملPotent circadian effects of dim illumination at night in hamsters.
Conventional wisdom holds that the circadian pacemaker of rodents and humans is minimally responsive to light of the intensity provided by dim moonlight and starlight. However, dim illumination (<0.005 lux) provided during the daily dark periods markedly alters entrainment in hamsters. Under dimly lit scotophases, compared to completely dark ones phases, the upper range of entrainment is increa...
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ژورنال
عنوان ژورنال: JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
سال: 1932
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1917.16.10_39