Patent ID: 9473709
Filing Date: 2016-10-18
CPC Classification: G03B,H04N

Claim Text:
1. An image blending system, comprising: a plurality of projection devices, configured to project a desired image, and respectively configured for projection at a plurality of projection regions onto a projection surface, wherein the projection regions are partially overlapped to each other; an image capturing device, configured for image capturing from the projection surface, wherein a captured image from image capturing has an image capturing coordinate system based on a resolution of the captured image; a blending device coupled to the projection devices; a video input module, configured to transmit an input video signal corresponding to the desired image to the blending device, wherein the projection devices receive the input video signal transmitted from the blending device for projection, and the input video signal has an input video coordinate system based on a resolution of the input video signal; and a computing module, configured to calculate for obtaining a plurality of mapping relationships according to the image capturing coordinate system and the input video coordinate system, and for further obtaining an image blending relationship through the mapping relationships and an overlapping area of the projection regions, wherein the image blending relationship has a first image blending relationship and a second image blending relationship, wherein the computing module calculates to obtain the overlapping area of the projection regions, wherein each of the projection devices respectively and sequentially projects at least one second default pattern in the overlapping area according to the first image blending relationship, and the image capturing device captures the second default patterns respectively projected from the projection devices to obtain a plurality of second captured images corresponding to the second default patterns.