منابع مشابه
Cues to an equivalent lighting model.
We investigate how human observers make use of three candidate cues in their lightness judgments. Each cue potentially provides information about the spatial distribution of light sources in complex, rendered 3D scenes. The illumination (lighting model) of each scene consisted of a punctate light source combined with a diffuse light source. The cues were (1) cast shadows, (2) surface shading, a...
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We define a new structured and general model of computation: circuits using arbitrary fan-in arithmetic gates over the characteristic-two finite fields (F,:,). These circuits have only one input and one output. We show how they correspond naturally to boolean computations with n inputs and n outputs. We show that if circuit sizes are polynomially related, then the arithmetic circuit depth and t...
متن کاملImplementing a Practical Light Transmission System in order to Lighting an Office with Zero Energy Consumption
One of the recently considered applications of fiber optic, in their usage in building lighting systems. In this research, in order to reduce energy consumption, by transmission of sun light from the roof to the desired place (i.e. an office), the required standard luminance is produced. The main aims of this research are : 1. Reduction of energy consumption. 2. Making the place compatible with...
متن کاملImplementing a Practical Light Transmission System in order to Lighting an Office with Zero Energy Consumption
One of the recently considered applications of fiber optic, in their usage in building lighting systems. In this research, in order to reduce energy consumption, by transmission of sun light from the roof to the desired place (i.e. an office), the required standard luminance is produced. The main aims of this research are :1. Reduction of energy consumption.2. Making the place compatible with t...
متن کاملAn Initiative Plan of the Equivalent Model for Simulation of the Welding Process
Many researchers content themselves with the 2D simulation of welding process instead of the 3D simulation, because of the time and the cost factors of the latter. In this research, the number of elements and nodes are reduced by an initiative plan (defining an equivalent model) for the simulation of welding. The welding process has been simulated by an uncoupled thermal-mechanical finite eleme...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2006
ISSN: 1534-7362
DOI: 10.1167/6.2.2