Projection system, semiconductor integrated circuit, and image correction method

摘要

A projection system includes a projection apparatus that projects, onto an object, pattern light indicating pattern images obtained by conversion of projection coordinates defined in a projection coordinate system to codes, an imaging apparatus that captures images created on the object by projecting the pattern light onto the object and that generates first captured images, and an image correction apparatus that generates, based on the first captured images, first coordinate conversion information which associates the projection coordinates with imaging pixel coordinates defined in an imaging coordinate system of the imaging apparatus and that corrects a projection image, which is prepared in advance, by using the first coordinate conversion information.

主权项

1. A projection system comprising:
a projection apparatus that projects pattern light onto an object, the pattern light including pattern images corresponding to information that indicates coded projection coordinates in a projection coordinate system, the pattern images including a first pattern image and a second pattern image, the first pattern image including two or more continuous areas including a first continuous area having a first color and a second continuous area having a second color, the first continuous area touching the second continuous area, the second pattern image including two or more continuous areas including a third continuous area having the first color, a fourth continuous area having the second color, and a fifth continuous area having the first color, the fourth continuous area touching the third continuous area and the fifth continuous area, and a total number of the two or more continuous areas of the first pattern image being different from a total number of the two or more continuous areas of the second pattern image; an imaging apparatus that captures images created on the object by projecting the pattern light projected onto the object and that generates first captured images including imaging pixel values at imaging pixel coordinates in an imaging coordinate system; and an image correction apparatus that generates, based on the first captured images, first coordinate conversion information which associates the projection coordinates with the imaging pixel coordinates and that corrects a projection image, which is prepared in advance, by using the first coordinate conversion information.