Three-Dimensional Shape Measurement using patterned image projection

摘要

An image input unit 110 of an information processing apparatus 101 inputs image data of a measurement object photographed by a camera 100 in a state where a predetermined pattern light is projected by a projector 105. An association unit 120 calculates associations between coordinates on the image data of the measurement object and coordinates on image data of the predetermined pattern light. A three-dimensional coordinate calculation unit 140 calculates a viewing vector of the camera 100 from which lens distortion thereof has been eliminated and a viewing vector of the projector 105 to which lens distortion thereof has been added. The calculation unit 140 calculates coordinates of a point, in a three-dimensional space, of intersection between the camera viewing vector and the projector viewing vector, for each association.