INTERACTIVE PROJECTOR, INTERACTIVE PROJECTION SYSTEM, AND METHOD FOR CONTROLLING INTERACTIVE PROJECTOR

摘要

Detection accuracy of contact of a pointing element with a screen surface is to be improved. An interactive projector includes a projection unit, a plurality of cameras including a first camera and a second camera that capture an image of the projected screen, a position detection unit that detects a three-dimensional position of the pointing element with respect to the projected screen based on a plurality of images including the pointing element of which the image is captured by the plurality of cameras, a function calculation unit that calculates a curved-surface function representing a three-dimensional shape of the projected screen based on a captured image including a specific image captured by the camera when the specific image is projected, and a contact detection unit that detects contact of the pointing element with the projected screen using the three-dimensional position of the pointing element detected by the position detection unit and the curved-surface function calculated by the function calculation unit, and the function calculation unit detects three-dimensional positions of a plurality of reference points which are different from each other, on the projected screen based on the captured image including the specific image and calculates the curved-surface function based on the three-dimensional positions of the plurality of reference points.