US-12621526-B2 - Electronic apparatus and method of controlling the same

US12621526B2US 12621526 B2US12621526 B2US 12621526B2US-12621526-B2

Abstract

An example electronic apparatus includes a processor configured to identify reference apparatus characteristics and reference cognitive characteristics defined for content to be displayed; identify apparatus characteristics of the electronic apparatus and user cognitive characteristics; and control a display to display an image of the content based on a calibration value of image characteristics based on at least one of a relationship between the reference apparatus characteristics and the apparatus characteristics of the electronic apparatus or a relationship between the reference cognitive characteristics and the user cognitive characteristics.

Inventors

Guiwon SEO
Jonghwan KIM
Youngshin Kwak
Youngsu Moon
Sungwon Seo
Younghoon JEONG
Minjeong KO
Yeseul BAEK

Assignees

SAMSUNG ELECTRONICS CO., LTD.
UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)

Dates

Publication Date: 20260505
Application Date: 20230427
Priority Date: 20201027

Claims (16)

1 . An electronic apparatus, comprising: memory; and at least one processor comprising processing circuitry, wherein the memory stores instructions which, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising: obtaining, from an external apparatus, content and characteristic data generated based on reference apparatus characteristics and reference cognitive characteristics defined for the content, the reference apparatus characteristics comprising a reference spectral power distribution (SPD) of a display used to create the content, the reference cognitive characteristics comprising a reference color matching function (CMF) representing color cognitive characteristics of a content creator, and the characteristic data comprising a value obtained by an operation for mathematically combining sampled values of the reference SPD and sampled values of the reference CMF; identifying the reference apparatus characteristics and the reference cognitive characteristics from the characteristic data by performing an inverse of the operation for mathematically combining the sampled values of the reference SPD and the sampled values of the reference CMF; identifying apparatus characteristics of the electronic apparatus and user cognitive characteristics, the apparatus characteristics comprising a unique SPD of a display of the electronic apparatus and the user cognitive characteristics comprising a unique CMF representing color cognitive characteristics of a user; and controlling the display to display an image of the content based on a calibration value of image characteristics based on a first relationship between the reference SPD and the unique SPD and a second relationship between the reference CMF and the unique CMF, wherein the at least one processor is configured to display the image of the content by transforming sampled values of an RGB input of the image of the content into values of an RGB output based on the calibration value, and transforming unsampled values of the RGB input into the values of an RGB output based on interpolation.
2 . The electronic apparatus of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising identifying the calibration value of the image characteristics based on a difference between the reference apparatus characteristics and the apparatus characteristics of the electronic apparatus.
3 . The electronic apparatus of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising identifying the user cognitive characteristics to be the same as the reference cognitive characteristics.
4 . The electronic apparatus of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising: identifying the user cognitive characteristics to be different from the reference cognitive characteristics; and identifying the calibration value of the image characteristics based on a difference between the reference cognitive characteristics and the user cognitive characteristics.
5 . The electronic apparatus of claim 4 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising: displaying a second image on each of a first display and a second display; and identifying the user cognitive characteristics based on apparatus characteristics of the first and second displays and user cognitive feedback information about the second image.
6 . The electronic apparatus of claim 4 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising identifying user cognitive characteristics corresponding to a user who is using the electronic apparatus among a plurality of user cognitive characteristics grouped based on cognitive characteristics of a plurality of users.
7 . The electronic apparatus of claim 6 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising: obtaining personal information of the user; and identifying user cognitive characteristics corresponding to the user based on the obtained personal information.
8 . The electronic apparatus of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic apparatus to perform operations comprising deriving the calibration value of image characteristics to transform unique data corresponding to the apparatus characteristics and the user cognitive characteristics of the electronic apparatus into reference data corresponding to the reference apparatus characteristics and the reference cognitive characteristics.
9 . A method of controlling an electronic apparatus, the method comprising: obtaining, from an external apparatus, content and characteristic data generated based on reference apparatus characteristics and reference cognitive characteristics defined for the content, the reference apparatus characteristics comprising a reference spectral power distribution (SPD) of a display used to create the content, the reference cognitive characteristics comprising a reference color matching function (CMF) representing color cognitive characteristics of a content creator, and the characteristic data comprising a value obtained by an operation for mathematically combining sampled values of the reference SPD and sampled values of the reference CMF; identifying the reference apparatus characteristics and the reference cognitive characteristics from the characteristic data by performing an inverse of the operation for mathematically combining the sampled value of the reference SPD and the sampled values of the reference CMF; identifying apparatus characteristics of the electronic apparatus and user cognitive characteristics, the apparatus characteristics comprising a unique SPD of a display of the electronic apparatus and the user cognitive characteristics comprising a unique CMF representing color cognitive characteristics of a user; and controlling the display to display an image of the content based on a calibration value of image characteristics based on a first relationship between the reference SPD and the unique SPD and a second relationship between the reference CMF and the unique CMF, wherein the method further comprises displaying the image of the content by transforming sampled values of an RGB input of the image of the content into values of an RGB output based on the calibration value, and transforming unsampled values of the RGB input into the values of an RGB output based on interpolation.
10 . The method of claim 9 , further comprising identifying the calibration value of the image characteristics based on a difference between the reference apparatus characteristics and the apparatus characteristics of the electronic apparatus.
11 . The method of claim 9 , wherein the identifying of the user cognitive characteristics comprises identifying the user cognitive characteristics to be the same as the reference cognitive characteristics.
12 . The method of claim 9 , wherein the identifying of the user cognitive characteristics comprises identifying the user cognitive characteristics to be different from the reference cognitive characteristics; and the method further comprises identifying the calibration value of the image characteristics based on a difference between the reference cognitive characteristics and the user cognitive characteristics.
13 . The method of claim 12 , wherein the identifying of the user cognitive characteristics comprises: displaying a second image on each of a first display and a second display; and identifying the user cognitive characteristics based on apparatus characteristics of the first and second displays and user cognitive feedback information about the second image.
14 . The method of claim 12 , wherein the identifying of the user cognitive characteristics comprises identifying user cognitive characteristics corresponding to a user who is using the electronic apparatus among a plurality of user cognitive characteristics grouped based on cognitive characteristics of a plurality of users.
15 . The method of claim 9 , further comprising deriving the calibration value of image characteristics to transform unique data corresponding to the apparatus characteristics of the electronic apparatus and the user cognitive characteristics into reference data corresponding to the reference apparatus characteristics and the reference cognitive characteristics.
16 . A non-transitory computer-readable storage medium storing instructions which, when executed by at least one processor of an electronic apparatus, cause the electronic apparatus to perform operations comprising: obtaining, from an external apparatus, content and characteristic data generated based on reference apparatus characteristics and reference cognitive characteristics defined for the content, the reference apparatus characteristics comprising a reference spectral power distribution (SPD) of a display used to create the content, the reference cognitive characteristics comprising a reference color matching function (CMF) representing color cognitive characteristics of a content creator, and the characteristic data comprising a value obtained by an operation for mathematically combining sampled values of the reference SPD and sampled values of the reference CMF; identifying the reference apparatus characteristics and the reference cognitive characteristics from the characteristic data by performing an inverse of the operation for mathematically combining the sampled value of the reference SPD and the sampled values of the reference CMF; identifying apparatus characteristics of the electronic apparatus and user cognitive characteristics, the apparatus characteristics comprising a unique SPD of a display of the electronic apparatus and the user cognitive characteristics comprising a unique CMF representing color cognitive characteristics of a user; and controlling the display to display an image of the content based on a calibration value of image characteristics based on a first relationship between the reference SPD and the unique SPD and a second relationship between the reference CMF and the unique CMF, wherein the operations further comprise displaying the image of the content by transforming sampled values of an RGB input of the image of the content into values of an RGB output based on the calibration value, and transforming unsampled values of the RGB input into the values of an RGB output based on interpolation.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of PCT/KR2021/015002, designating the United States, filed Oct. 25, 2021, in the Korean Intellectual Property Receiving Office, which claims priority to Korean Patent Application No. 10-2020-0139962, filed Oct. 27, 2020, in the Korean Intellectual Property Office. The contents of each of these applications are incorporated by reference herein in their entireties. BACKGROUND Field The disclosure relates to an electronic apparatus and a method of controlling the same, and, for example, to an electronic apparatus, which displays an image calibrated reflecting a user's characteristics, and a method of controlling the same. Description of Related Art A TV or similar electronic apparatus with a display receives various pieces of content from an external source and displays an image based on the received content. The electronic apparatus may employ various types of displays, such as a liquid crystal display (LCD), an organic light emitting diode (OLED), and a micro-LED, and is varied in a reproduction range of colors depending on the types of displays. Further, a user may have a unique sensitivity in perceiving colors, and therefore different user may perceive the same image to have different colors. In other words, a user may distort and perceive an image as having colors different from those intended by a creator. Accordingly, there is a demand for an electronic apparatus that reduces distortion in image perception and provides the characteristics (e.g., colors) of an image to a user if possible as it is intended by a content provider. Example embodiments of the disclosure can provide an electronic apparatus, and a method of controlling the same, in which an image is calibrated in consideration of apparatus characteristics and cognitive characteristics of a user who is viewing the image, so that an image having colors intended by a creator can be provided to a user. SUMMARY According to an example embodiment of the disclosure, an electronic apparatus may include a processor configured to identify reference apparatus characteristics and reference cognitive characteristics defined for content to be displayed; identify apparatus characteristics of the electronic apparatus and user cognitive characteristics; and control a display to display an image of the content based on a calibration value of image characteristics based on at least one of a relationship between the reference apparatus characteristics and the apparatus characteristics of the electronic apparatus or a relationship between the reference cognitive characteristics and the user cognitive characteristics. In an example embodiment, the processor may be configured to identify the calibration value of the image characteristics based on a difference between the reference apparatus characteristics and the apparatus characteristics of the electronic apparatus. In an example embodiment, the processor may be configured to identify the user cognitive characteristics as the same user cognitive characteristics as the reference cognitive characteristics. In an example embodiment, the processor may be configured to identify the user cognitive characteristics different from the reference cognitive characteristics; and identify the calibration value of the image characteristics based on a difference between the reference cognitive characteristics and the user cognitive characteristics. In an example embodiment, the processor may be configured to display a second image on each of a first display and a second display; and identify the user cognitive characteristics based on the apparatus characteristics of the first and second displays and user cognitive feedback information about the second image. In an embodiment, the processor may be configured to identify user cognitive characteristics corresponding to a user who is using the electronic apparatus among a plurality of user cognitive characteristics grouped based on cognitive characteristics of a plurality of users. In an example embodiment, the processor may be configured to obtain personal information of the user; and identify user cognitive characteristics corresponding to the user based on the obtained personal information. In an example embodiment, the processor may be configured to derive a calibration value of image characteristics to transform unique data corresponding to the apparatus characteristics and the user cognitive characteristics of the electronic apparatus into reference data corresponding to the reference apparatus characteristics and the reference cognitive characteristics. According to an example embodiment of the disclosure, a method of controlling an electronic apparatus may include identifying reference apparatus characteristics and reference cognitive characteristics defined for content to be displayed; identifying apparatus characteristics of the electronic apparatus and user cognitive characteristics; and controlling