The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 11, 2022

Filed:

Dec. 12, 2019
Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Sami Kalliomäki, Stockholm, SE;

Niklas Blum, Stockholm, SE;

Stefan Ekerfelt, Stockholm, SE;

Peter Hanspers, Stockholm, SE;

Magnus Jedvert, Stockholm, SE;

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:
Int. Cl.
CPC ...
H04N 5/58 (2006.01); G06T 5/00 (2006.01); G06T 5/40 (2006.01); G06T 5/50 (2006.01); H04N 5/235 (2006.01);
U.S. Cl.
CPC ...
H04N 5/58 (2013.01); G06T 5/009 (2013.01); G06T 5/40 (2013.01); G06T 5/50 (2013.01); H04N 5/2351 (2013.01); H04N 5/2352 (2013.01); G06T 2200/28 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/20072 (2013.01); G06T 2207/20208 (2013.01); G06T 2207/20216 (2013.01);
Abstract

A method enhances brightness in video frames of a video during streams. The method includes determining, by a processor, that a first video frame has low light. The method further includes applying, by the processor, a linear correction to provide a first brightness enhancement in the first video frame that modifies a first brightness of a predetermined darkest percentage of pixels to be less than a darkness threshold value or a second brightness of a predetermined lightest percentage of the pixels to be greater than a lightness threshold value. The method further includes averaging, by the processor, the first brightness enhancement of the first video frame with a set of brightness enhancements corresponding to previous video frames to generate a modified video.


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