Symmetrical narrow-band spectral image driven multi-primary color display method and device

By employing a symmetrical narrowband spectral image driving method, and utilizing the symmetrical setup of a narrowband spectral camera and a multi-primary-color display screen, spectral parameters are calculated and adjusted to directly acquire the driving image of the multi-primary-color display screen. This solves the problems of brightness non-uniformity and error in color reproduction in multi-primary-color display systems, and achieves high-precision color reproduction.

CN116758844BActive Publication Date: 2025-12-16BEIJING INST OF TECH +1
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Patent Information

Application Number
CN202310751055.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-25
Publication Date
2025-12-16
Estimated Expiration
2043-06-25

AI Technical Summary

Technical Problem

Existing multi-color display systems suffer from uneven brightness distribution and color reproduction quality issues during image acquisition, making it difficult to effectively acquire high-quality multi-color driven images.

Method used

A symmetrical narrowband spectral image driving method is adopted. By symmetrically setting up a narrowband spectral camera and a multi-primary-color display screen, the spectral reflectance and spectral transmittance of the target are obtained, the tristimulus values ​​and color difference data are calculated, the center wavelength and bandwidth of the narrowband spectral camera are adjusted, and the driving image of the multi-primary-color display screen is directly captured.

Benefits of technology

It achieves high-precision reproduction of color target scenes in multi-primary-color display systems, avoids color perception errors caused by metamerism, and improves the accuracy of color reproduction.

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Abstract

The application discloses a kind of symmetric narrow-band spectral image driven multi-primary color display method and device, it is related to color image display technical field, method includes: based on the spectral reflectivity of target to be photographed calculation three stimulus value;Based on the spectral transmittance of any channel in the narrow-band spectral camera to be used, the spectral emission power of corresponding primary color channel in the multi-primary color display screen to be used and the spectral reflectivity of target to be photographed, the three stimulus value of color output by the multi-primary color display screen to be used is calculated;According to the three stimulus value of target to be photographed and the three stimulus value of color output by the multi-primary color display screen to be used, color difference data is calculated;Based on color difference data, the center wavelength and bandwidth of any channel in the narrow-band spectral camera to be used are adjusted;Image shooting is carried out to target to be photographed by the adjusted narrow-band spectral camera to be used, and the image obtained by shooting is used as the driving image of the multi-primary color display screen to be used, to obtain target color display image.The application improves the accuracy of color reproduction of color target scene.
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