IMAGE BLENDING METHOD AND PROJECTION SYSTEM
First Claim
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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Accused Products
Abstract
The disclosure provides an image blending method. The method includes projecting a first image and a second image onto a projection surface by a first projector and a second projector, respectively, and the first image and the second image overlap each other; and projecting the first control pattern onto the first image, adjusting the first control pattern such that a first control pattern frame matches a boundary of an overlapping area, and thereby identifying a position of a first non-overlapping area in the first image. Additionally, a similar operation is performed by the second projector to identify a second non-overlapping area in the second image. All pixels in the first non-overlapping area and the second non-overlapping area are adjusted such that the black-level brightness of the first non-overlapping area and the second non-overlapping area correspond to the black-level brightness of the overlapping area to obtain better brightness uniformity.
5 Citations
20 Claims
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1. An image blending method configured for a plurality of images projected by a plurality of projectors, the method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A projection system, wherein the projection system comprises a first projector and a second projector, wherein:
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the first projector comprises a first processor, a first input interface, a first connection interface, and a first projection module; and the second projector comprises a second processor, a second input interface, a second connection interface, and a second projection module, wherein the first processor is configured to instruct the first projection module to project a first image onto a projection surface according to a first image data, and the second processor is configured to instruct the second projection module to project a second image onto the projection surface according to a second image data, wherein an image of a first portion of the first image projected on the projection surface and an image of a second portion of the second image overlap with each other in an overlapping area on the projection surface, wherein the first processor is configured to render a first control pattern, and instruct the first projection module to project the first control pattern onto the first image, wherein the first processor is configured to adjust the first control pattern in the first image according to a first input operation applied to the first input interface, such that a first control pattern frame of the first control pattern matches a boundary of the overlapping area, wherein the first processor is configured to identify 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, wherein the second processor is configured to render a second control pattern, and instruct the second projection module to project the second control pattern onto the second image, wherein the second processor is configured to adjust the second control pattern in the second image according to a second input operation applied to the second input interface, such that a second control pattern frame of the second control pattern matches a boundary of the overlapping area, wherein the second processor is configured to identify 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, wherein the first processor and the second processor are each configured to adjust 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 of the second image correspond to a black-level brightness of an overlapping mage in the overlapping area. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification