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IMAGE BLENDING METHOD AND PROJECTION SYSTEM

  • US 20200134798A1
  • Filed: 10/25/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/31/2018
  • Status: Active Grant
First Claim
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1. An image blending method configured for a plurality of images projected by a plurality of projectors, the method comprising:

  • projecting a first image and a second image onto a projection surface by a first projector of the plurality of projectors and a second projector of the plurality of projectors respectively, wherein the first image and the second image overlap each other in an overlapping area;

    projecting, by the first projector, a first control pattern onto the first image;

    adjusting the first control pattern in the first image by the first projector according to a first input operation applied to a first input interface of the first projector, such that a first control pattern frame of the first control pattern matches a boundary of the overlapping area;

    identifying, by the first projector, a position of a first non-overlapping area in the first image according to a position of the matched first control pattern frame, wherein the first non-overlapping area of the first image does not overlap the second image;

    projecting a second control pattern onto the second image by the second projector;

    adjusting the second control pattern in the second image by the second projector according to a second input operation applied to a second input interface of the second projector, such that a second control pattern frame of the second control pattern matches the boundary of the overlapping area;

    identifying, by the second projector, a position of a second non-overlapping area in the second image according to a position of the matched second control pattern frame, wherein the second non-overlapping area of the second image does not overlap the first image; and

    adjusting, by the first projector and the second projector, image parameters of all pixels of the first non-overlapping area and the second non-overlapping area according to the position of the first non-overlapping area and the position of the second non-overlapping area, such that a black-level brightness of a first non-overlapping image in the first non-overlapping area of the first image and a black-level brightness of a second non-overlapping image in the second non-overlapping area correspond to a black-level brightness of an overlapping image in the overlapping area.

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