Hybrid image decomposition and projection
First Claim
1. A method for converting input image data for a hybrid image projection system, the input image data representing a two-dimensional (2D) input image, the method comprising:
- dividing the input image data by region decomposition into at least two image regions based on analysis of content of the input image, each of the at least two image regions being smaller than the input image data;
determining parameters for the at least two image regions, at least one parameter being an image decomposition parameter determined for each of the at least two image regions and representing optimal adaptation to local image content;
producing a first image component and a second image component by decomposing the input image based on the parameters, the first image component being orthogonal or quasi-orthogonal with the second image component;
displaying the first image component by a first display device; and
displaying the second image component by a second display device, the second image component being superimposed on the first image component to produce a final superimposed 2D version of the 2D input image with the same or better image quality as the 2D input image and that is brighter than the 2D input image.
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Abstract
Hybrid image projection systems and methods can superimpose image components of an input image. An input image can be divided into smaller regions and at least one parameter of each region can be determined. The input image can be decomposed based on the parameter of each region into multiple, less correlated, orthogonal or quasi-orthogonal image components. Each projector can display respective image components so that the images projected may be optically superimposed on a screen. The superposition of orthogonal or quasi-orthogonal image components can result in superposition of images in an existing multi-projector image systems being more insensitive to inter-projector image misalignment. Superimposing orthogonal or quasi-orthogonal images can be used to avoid visible image degradation, and provide more robust image quality in a multiple projector system implementation.
74 Citations
19 Claims
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1. A method for converting input image data for a hybrid image projection system, the input image data representing a two-dimensional (2D) input image, the method comprising:
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dividing the input image data by region decomposition into at least two image regions based on analysis of content of the input image, each of the at least two image regions being smaller than the input image data; determining parameters for the at least two image regions, at least one parameter being an image decomposition parameter determined for each of the at least two image regions and representing optimal adaptation to local image content; producing a first image component and a second image component by decomposing the input image based on the parameters, the first image component being orthogonal or quasi-orthogonal with the second image component; displaying the first image component by a first display device; and displaying the second image component by a second display device, the second image component being superimposed on the first image component to produce a final superimposed 2D version of the 2D input image with the same or better image quality as the 2D input image and that is brighter than the 2D input image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A multiple projector system, comprising:
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an input configured for receiving input image data representing a two-dimensional (2D) image; a processor configured for processing the input image data and for outputting a first image component and a second image component based on the input image data by dividing the 2D image, by region decomposition, into image regions based on analysis of image content, determining parameters for the image regions, and decomposing the 2D image into the first image component and into the second image component that is orthogonal or quasi-orthogonal to the first image component, each image region of the image regions being smaller than the input image data, the parameters including an image decomposition parameter determined for each image region of the image regions; a system function module configured for modifying the first image component and for modifying the second image component; a first projector configured to display the modified first image component; and a second projector configured to display the modified second image component superimposed on the modified first image component to produce a final superimposed 2D version of the 2D image with the same or better image quality as the 2D image and that is brighter than the 2D image. - View Dependent Claims (18, 19)
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Specification