| CPC H04N 9/3185 (2013.01) [H04N 9/3194 (2013.01)] | 11 Claims |
|
1. A projection system comprising:
a projector configured to project a content image and a pattern image satisfying a predetermined condition onto a projection surface having a front surface, the front surface being not a solid color;
a camera configured to photograph the projection surface at a photographing timing, the photographing timing being a timing at which the pattern image is projected;
a processor; and
a storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by the processor, perform processing of:
calculating a texture deformation value indicating a change in position, orientation, or shape of the projection surface on the basis of a camera image, the camera image being a photographing result of the camera, and
acquiring a projector deformation value of image deformation for converting an image projected by the projector into an image according to a state of the projection surface on the basis of the pattern image captured in the camera image and the texture deformation value,
wherein the predetermined condition includes a condition that a plurality of types of solid color regions having different brightness values are included, and
wherein the computer program instructions perform processing of:
calculating texture deformation value on the basis of a pattern of the front surface of the projection surface captured in a region captured in the camera image, the region being a region inside the solid color region and being a region located at a position away from an outer circumference of the solid color region by a distance according to a speed of movement or rotation of the projection surface and an interval between timings of photographing by the camera.
|