Uniform facial appearance in a captured video stream
AssigneeDell Products L.P.
InventorsGhee Beng Ooi, Chih-Hao Kao, Vui Khen Thien
Life of this patent
Estimating the term…
Abstract
An information handling system includes a camera and a display controller. The camera captures multiple images to form a video stream. The display controller outputs a background image pattern on a display screen. The color temperature and the brightness of the background image pattern are set to defined levels. The display controller receives the video stream from the camera. The display controller outputs the video stream as a separate stream from the background image pattern on the display screen. The luminance of the video stream is controlled independent from the color temperature and brightness of the background image pattern.
Claims17
An information handling system comprising:
- a camera to capture images to form a video stream;
- and
- a display controller to communicate with the camera, the display controller includes first and second channel video processing paths, the display controller to:
- output a background image pattern, wherein a color temperature and brightness of the background image pattern are set to defined levels;
- receive the video stream from the camera;
- adjust properties of the video stream via the first channel video processing path, wherein the background image pattern is bypassed around both of the first and second channel video processing paths;
- and
- output the video stream as an overlay to the background image pattern, wherein the video stream and the background image pattern are separate streams, wherein a luminance of the video stream is controlled independent from the color temperature and brightness of the background image pattern.
A method comprising:
- capturing, via a camera of an information handling system, image to form a video stream;
- outputting, via a display controller of the information handling system, a background image pattern, wherein a color temperature of the background image pattern is set to a defined level;
- receiving the video stream from the camera;
- outputting the video stream as an overlay to the background image pattern, wherein the video stream and the background image pattern are separate streams, wherein a luminance of the video stream is controlled independent from the color temperature of the background image pattern;
- determining whether the video stream and the background image pattern overlap within one or more cells of a backlight matrix;
- and
- in response to the video stream and the background image pattern not overlapping, directly dimming an area of the backlight matrix associated with a location of the video stream.
An information handling system comprising:
- a camera to capture images to form a video stream;
- a display controller to communicate with the camera, the display controller to:
- output a background image pattern, wherein a color temperature of the background image pattern is set to a defined level;
- receive the video stream from the camera;
- receive a video stream size indication from a graphical user interface input;
- based on the video stream size indication, adjust a display size of the video stream;
- output the video stream as an overlay to the background image pattern, wherein the video stream and the background image pattern are separate streams, wherein a luminance of the video stream is controlled independent from the color temperature of the background image pattern;
- and
- based on the video stream and the background image pattern overlapping within one or more cells, adjust a uniformity compensation gain within the one or more cells based on a maximum luminance of the video stream and a maximum luminance of the background image pattern;
- and
- a local dimming control circuit to:
- based on a determination that the video stream and the background image pattern do not overlap within the one or more cells of a backlight matrix, directly dim an area of the backlight matrix associated with a location of the video stream.
Dependencies are inferred from the claim text.