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Desired Visual Image Reduction Method in Color Compensation Mapping Domain

A color and image technology, applied in the field of desired visual image reduction, can solve the problems of pre-projection image color compensation failure, and achieve the effect of optimizing global performance

Active Publication Date: 2020-03-17
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a desired visual image reduction method in the color compensation mapping domain, aiming to solve the problem of color compensation failure of the pre-projection image corresponding to the desired visual image

Method used

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  • Desired Visual Image Reduction Method in Color Compensation Mapping Domain
  • Desired Visual Image Reduction Method in Color Compensation Mapping Domain

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and embodiment the present invention will be further described; figure 1 It is the working flow chart of the desired visual image reduction method, wherein: "abnormal data cleaning" corresponds to S2-S4 in the specific implementation steps; "global map offset and compression" corresponds to S5-S10 in the specific implementation steps; figure 2 It is a schematic diagram of the working image and effective projection area when the projector-camera system is in working state. The desired visual image reduction method of the color compensation mapping domain is characterized in that: the pixel resolution of the pre-projection image GP is Q×P, wherein: the horizontal pixel resolution Q=1024 of the pre-projection image GP, the pixel resolution of the pre-projection image GP Vertical pixel resolution P=768, the concrete implementation steps of this method are as follows:

[0030] Step S1, set the image acquisition pixel resolutio...

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Abstract

The invention relates to an expected visual image reduction method of a color compensation mapping domain. The pixel resolution of a pre-projected image GP is Q*P, wherein the horizontal pixel resolution of the pre-projected image GP is Q=1024, the longitudinal pixel resolution of the pre-projected image GP is P=768, a color transformation parameter applied to the pre-projected image can be accurately obtained, and the global representation of an expected visual image and the quantitative regulation and control of a projection display image are effectively optimized; and color transformation can be dynamically performed on the pre-projected image according to different color distribution conditions of the pre-projected image to generate the optimal expected visual image.

Description

technical field [0001] The invention relates to a method for reducing a desired visual image in a color compensation mapping domain, and belongs to the fields of augmented reality technology and projection display technology. Background technique [0002] The traditional universal projection receiving surface has the physical characteristics of diffuse reflection or near diffuse reflection, which is a standardized ideal surface with uniform reflectivity. In line with the rapid development of data visualization, augmented reality, interactive film and television and other fields, in order to present novel, dazzling, shocking, integrated visual images and special display effects, intelligent projection systems with various forms are being used more and more. The more targeted. Due to changes in physical properties such as material, texture, shape, and external environmental factors of the projection surface, it will inevitably cause geometric distortion and color distortion o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/31
CPCH04N9/3176H04N9/3182H04N9/3188
Inventor 张超韩成杨帆蒋振刚于翠红丁莹
Owner CHANGCHUN UNIV OF SCI & TECH