Method and apparatus for adjusting video brightness

Patent metadata

Field	Value
Publication number	US-12432313-B2
Application number	US-202117361107-A
Country	US
Kind code	B2
Filing date	Jun 28, 2021
Priority date	Jun 28, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A method and apparatus for adjusting a display includes receiving a video stream. The video stream is analyzed for one or more environmental conditions. Based upon the analysis, a portion of the display is adjusted.

First claim

What is claimed is:

1. A method for adjusting a display, comprising:
receiving a video stream of a scene that is at least partially illuminated by the display;
analyzing the video stream for lighting conditions in the scene, wherein the analyzing includes:
comparing a color temperature of the scene with a first threshold,
comparing a brightness of a subject in the scene with a second threshold, and
detecting in the video stream any one of or any combination of: backlight, daytime conditions, or nighttime conditions; and

based upon the analyzing, adjusting a respective brightness and a respective color temperature of a transparent light border that is integrated with the display and borders a portion of the display to modify illumination and color in the scene.

2. An apparatus for adjusting a display, the apparatus comprising:
an input device; and
a processor operatively coupled with and in communication with the input device, the processor configured to:
receive a video stream captured by the input device, wherein the video stream is of a scene that is at least partially illuminated by the display;
analyze the video stream for lighting conditions in the scene to generate an analysis result, wherein the analysis result is generated by:
comparing a color temperature of the scene with a first threshold,
comparing a brightness of a subject in the scene with a second threshold, and
detecting in the video stream any one of or any combination of: backlight, daytime conditions, or nighttime conditions; and

based upon the analyzing, adjust a respective brightness and a respective color temperature of a transparent light border that is integrated with the display and borders a portion of the display to modify illumination and color in the scene.

3. A non-transitory computer-readable medium for adjusting a display, the non-transitory computer-readable medium having instructions recorded thereon, that when executed by a processor, cause the processor to perform operations including:
receiving a video stream of a scene that is at least partially illuminated by the display;
analyzing the video stream for lighting conditions in the scene, wherein the analyzing includes:
comparing a color temperature of the scene with a first threshold,
comparing a brightness of a subject in the scene with a second threshold, and
detecting in the video stream any one of or any combination of: backlight, daytime conditions, or nighttime conditions; and

based upon the analyzing, adjusting a respective brightness and a respective color temperature of a transparent light border that is integrated with the display and borders a portion of the display to modify illumination and color in the scene.

4. The method of claim 1 , wherein adjusting the brightness and the color temperature of the transparent light border includes modifying a group of pixels at a periphery of the display.

5. The method of claim 1 , wherein the transparent light border comprises a band of pixels adjacent to, but not at, an edge of a display area within the display.

6. The method of claim 1 , further comprising presenting a user interface configured to allow manual adjustment of the color temperature or brightness of the transparent light border.

7. The method of claim 1 , wherein the analyzing comprises identifying a face or human subject within the video stream and evaluating brightness of the identified subject.

8. The method of claim 1 , wherein the comparing of the color temperature comprises determining whether the scene is in a warm or cool lighting condition.

9. The method of claim 1 , wherein adjusting the brightness of the transparent light border comprises increasing brightness when low light or nighttime conditions are detected.

10. The apparatus of claim 2 , wherein the transparent light border includes a plurality of edge pixels integrated into the display.

11. The apparatus of claim 2 , wherein the processor is further configured to determine whether a face of the subject is underexposed and to increase the brightness of the transparent light border in response.

12. The apparatus of claim 2 , wherein the input device comprises a USB camera including an integrated image processing unit.

13. The non-transitory computer-readable medium of claim 3 , wherein the instructions further cause the processor to continuously monitor the scene and apply updated adjustments to the transparent light border at a fixed time interval.

14. The non-transitory computer-readable medium of claim 3 , wherein the instructions further cause the processor to store lighting condition data for a plurality of frames and perform temporal smoothing of brightness or color temperature adjustments.

Assignees

• Advanced Micro Devices Inc
• Ati Technologies Ulc

Inventors

• Wu Vickie Youmin
• Yu Wilson Hung
• Karaimer Hakki Can
• Yan Hong Tao

Classifications

• G06T7/90

  Determination of colour characteristics · CPC title

• G06T2207/10016

  Video; Image sequence · CPC title

• H04N17/02

  for colour television signals · CPC title

• G06T2207/10024

  Color image · CPC title

• H04N9/73

  Colour balance circuits, e.g. white balance circuits or colour temperature control (camera processing pipelines for colour balance H04N23/88) · CPC title