Patent attributes
Provided is a real-time-measurement projection device which can measure a distance to a changing target object in real time, and, particularly, can appropriately perform projection and mapping on a changing target object. A real-time-measurement projection device includes a projection device that projects pattern light including a pattern image onto a projection target, an imaging device that electronically acquires a captured image of the projection target irradiated with the pattern light for each pixel for a predetermined exposure time, and a calculation device that calculates a distance to each point of the projection target by contrasting data of the captured image with data of the pattern image, in which the imaging device temporally deviates a start point and an end point of the predetermined exposure time for each pixel.
