Invention Grant
- Patent Title: Summing-up video frames to enhance image brightness
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Application No.: US17552136Application Date: 2021-12-15
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Publication No.: US11671557B2Publication Date: 2023-06-06
- Inventor: Sami Kalliomäki , Niklas Blum , Stefan Ekerfelt , Peter Hanspers , Magnus Jedvert
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: IP Spring
- Main IPC: H04N5/58
- IPC: H04N5/58 ; G06T5/00 ; G06T5/40 ; G06T5/50 ; H04N23/71 ; H04N23/72

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.
Public/Granted literature
- US20220109804A1 SUMMING-UP VIDEO FRAMES TO ENHANCE IMAGE BRIGHTNESS Public/Granted day:2022-04-07
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