Image pickup apparatus and method, and recording medium

摘要

An image pickup apparatus for picking up an image signal used for measurement of three-dimensional shape, comprising: projecting means for projecting non-periodic pattern light on an object of measurement; generating means for generating image signals of a plurality of frames by using optical images of the object of measurement; limiting means for limiting input of the optical images of the object of measurement to the generating means; and timing control means for controlling the projecting means, the limiting means, and the generating means so that a signal of a pattern image of the object of measurement being irradiated with the non-periodic pattern light and a signal of a texture image of the object of measurement not being irradiated with the non-periodic pattern light are generated as the image signals of the frames in succession; wherein the timing control means allows the projecting means to project the non-periodic pattern light on the object of measurement for a period of time shorter than an open time within the open time, the open time being a period during which the limiting means does not limit input of the optical images of the object of measurement to the generating means.