Calibration system for display apparatus and operating method thereof

Patent metadata

Field	Value
Publication number	US-12217645-B2
Application number	US-202318136630-A
Country	US
Kind code	B2
Filing date	Apr 19, 2023
Priority date	Aug 26, 2022
Publication date	Feb 4, 2025
Grant date	Feb 4, 2025

Abstract

An operating method of a calibration system for a display device obtains image information about an image displayed on display device and wavelength information about pixels of the image information using a hyperspectral camera included in an electronic device, transmits the obtained image information and wavelength information to a first application in the electronic device, generates calibration data about the obtained image information and wavelength information through the first application and transmits the calibration data to a second application in the display device, and performs color calibration of the display device based on the calibration data transmitted to the second application to display a color calibrated image.

First claim

What is claimed is:

1. An operating method of a calibration system for a display device, the operating method comprising:
obtaining image information of an image displayed on a screen of the display device;
obtaining wavelength information about pixels of the image information using a hyperspectral camera included in an electronic device;
transmitting the obtained image information and wavelength information to a first application in the electronic device;
generating calibration data about the obtained image information and wavelength information through the first application and transmitting the calibration data to a second application in the display device; and
performing color calibration of the display device based on the calibration data transmitted to the second application to provide a color calibrated output image on the display device.

2. The operating method of claim 1 , wherein the first application of the electronic device generates calibration data by measuring at least one of color gamut and color fidelity based on the obtained image information and wavelength information.

3. The operating method of claim 2 , wherein the first application of the electronic device generates calibration data by further measuring at least one of white balance, corrected color temperature, brightness, and gamma.

4. The operating method of claim 1 , further comprising obtaining ambient light data of the display device through the hyperspectral camera, wherein the display device outputs color calibrated output image further adjusted for the ambient light.

5. The operating method of claim 4 , further comprising:
transmitting the obtained ambient light data to the first application in the electronic device;
generating first calibration data about the ambient light data and second calibration data about the obtained image information and wavelength information through the first application; and
transmitting the first calibration data and the second calibration data to the second application.

6. The operating method of claim 1 , wherein the obtaining of the image information comprises setting autofocus on a certain area of the display device through the hyperspectral camera.

7. The operating method of claim 1 , further comprising:
obtaining a plurality of pieces of image information and wavelength information about a plurality of display devices through the hyperspectral camera; and
generating a plurality of pieces of calibration data respectively corresponding to the plurality of display devices by analyzing the plurality of pieces of image information and wavelength information through the first application.

8. The operating method of claim 1 , wherein the first application of the electronic device and the second application of the display device each establish a wireless communication connection through a server.

9. The operating method of claim 1 , wherein generating the calibration data comprises generating a hyperspectral cube having a plurality of channel information at each spatial coordinate of respective pixels of the image information, and the plurality of channel information corresponds to the wavelength information of the pixels of the image information at respective spatial coordinates of the image information.

10. The operating method of claim 1 , wherein the hyperspectral camera obtains the wavelength information and a general camera obtains the image information.

11. A non-transitory computer-readable recording medium having recorded thereon a program for executing the operating method of claim 1 in a computer.

12. A calibration system for a display device, the calibration system comprising:
an electronic device comprising a hyperspectral camera; and
a display device,
wherein the electronic device includes a processor, and the processor is configured to
obtain image information about an image displayed on the display device;
obtain wavelength information about pixels of the image information through the hyperspectral camera,
transmit the obtained image information and wavelength information to a first application, and
generate calibration data about the obtained image information and wavelength information through the first application and transmits the calibration data to a second application in the display device, and
the display device is configured to perform color calibration of the display device based on the calibration data transmitted to the second application to provide a color calibrated output image on the display device.

13. The calibration system of claim 12 , wherein the first application of the electronic device is configured to generate calibration data by measuring at least one of color gamut and color fidelity based on the obtained image information and wavelength information.

14. The calibration system of claim 13 , wherein the first application of the electronic device is further configured to generate calibration data by further measuring at least one of white balance, corrected color temperature, brightness, and gamma.

15. The calibration system of claim 12 , wherein the electronic device is further configured to obtain ambient light data of the display device through the hyperspectral camera, and the display device outputs color calibrated output image further adjusted based on the ambient light.

16. The calibration system of claim 15 , wherein the electronic device is further configured to
transmit the obtained ambient light data to the first application,
generate first calibration data about the ambient light data and second calibration data about the obtained image information and wavelength information through the first application, and
transmit the first calibration data and the second calibration data to the second application.

17. The calibration system of claim 12 , wherein the electronic device is further configured to set autofocus on a certain area of the display device through the hyperspectral camera.

18. The calibration system of claim 12 , wherein the electronic device is further configured to
obtain a plurality of pieces of image information and wavelength information about a plurality of display devices through the hyperspectral camera, and
generate a plurality of pieces of calibration data respectively corresponding to the plurality of display devices by analyzing the plurality of pieces of image information and wavelength information through the first application.

19. The calibration system of claim 12 , wherein the first application of the electronic device and the second application of the display device are each configured to establish a wireless communication connection through a server.

20. The calibration system of claim 12 , wherein the processor generates the calibration data by generating a hyperspectral cube having a plurality of channel information at each spatial coordinate of respective pixels of the image information, and the plurality of channel information corresponds to the wavelength information of the pixels of the image information at respective spatial coordinates of the image information.

Assignees

• Samsung Electronics Co Ltd
• Univ Chung Ang Ind Acad Coop Found

Inventors

• Kim Unjeong
• Kim Hojung
• Son Hyungbin
• Lee Suyeon

Classifications

• G09G2360/144

  the light being ambient light · CPC title

• G09G2320/0666

  for control of colour parameters, e.g. colour temperature · CPC title

• G06T2207/10024

  Color image · CPC title

• G06T7/90

  Determination of colour characteristics · CPC title

• G09G2370/16

  Use of wireless transmission of display information · CPC title