Patent ID: 8816937
Filing Date: 2014-08-26
Classification: H04N

Abstract:
1. A multiprojection display system in which a plurality of two-dimensional scanning projectors project images onto a screen, comprising: a set of cameras that capture images of predetermined vertex regions including vertexes of said projected images; an image-capturing timing control unit that controls said set of cameras to capture a set of images on said screen during a predetermined period, selected based on a scanning direction or scanning timing of said two-dimensional scanning projectors; a vertex position detection unit that determines, based on the captured set of images, for each of the projected images, an edge that is adjacent to a region outside of the projected image, detects the vertexes of said projected images based on the edge determination, and outputs data indicating positions of the detected vertexes; and a projector control unit that adjusts a scanning range of at least one of the two-dimensional scanning projectors based on a determination that at least one of the detected vertexes is shifted from a reference position of the at least one detected vertex.