Proceedings PaperPhotometric ranging and 3-D vision
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This paper describes a method of active light ranging, which in principle is based on triangulation, but where the range information is deduced from at least two measurements of the luminance of the object. With this tech- nique it is possible in a simple manner to obtain range data for each pixel in a computer vision system. The sources of error inherent in the method are discussed and a number of examples of photometric range finders and 3-D vision systems are given.