THREE-DIMENSIONAL SURFACE SHAPE MEASUREMENT METHOD AND APPARATUS USING COLOR INFORMATION

摘要

PURPOSE: A three-dimensional surface shape measurement method and apparatus is provided to measure the three-dimensional shape of an object in a real time basis at a high speed, while obtaining an optimized measurement result by arranging the detection unit at the position optimum for the shape of the object. CONSTITUTION: A three-dimensional surface shape measurement method, comprises the steps of arranging an illumination device(30) over an object(45); arranging an image sensor(43) as a detection unit over the object; scanning multi-wavelength to the object through the illumination device; and calculating a height information for the object corresponding to a Hue-value, by detecting, through the detection unit, the bandpass distributed in accordance with the height of the object, and converting the detected wavelength into the Hue-value. The height information for the object is determined by the function of only the Hue-value.