Google patents video tool that fills in hidden backgrounds during calls
This patent describes a method for improving virtual backgrounds in video conferences by combining background data from multiple video frames. It uses a machine learning model to guess what is hidden behind a person's head or body in one frame by looking at what is visible in other frames. The system then updates the background image as more of the scene becomes visible over time.
In the filing’s own words
Systems and methods for iterative background generation for video streams are provided. A first background layer and a first foreground layer of a first frame of a video stream are determined. A second background layer and a second foreground layer of a second frame of the video stream are determined. The first and second background layers are combined. The combined background layer includes a region obscured by both the first and the second foreground layers. An inpainting of the obscured region is performed to obtain an image of the obscured region.
What exactly they claim (claim 1)
1. A method comprising: determining a first background layer and a first foreground layer of a first frame of a video stream provided by a client device associated with a first participant of a plurality of participants of a video conference; determining, during the video conference, a second background layer and a second foreground layer of a second frame of the video stream; combining, during the video conference, the first background layer and the second background layer to obtain a combined background layer, wherein the combined background layer comprises a region obscured by both the first foreground layer and the second foreground layer; performing, during the video conference and using a generative machine learning model, inpainting of the obscured region to obtain an image of the obscured region; modifying, during the video conference and using the image of the obscured region and the combined background layer, background layers of subsequent frames of the video stream; performing iterative modifications on the image for subsequent frames of the video stream as portions of the obscured region are revealed, wherein the iterative modifications are performed until a fidelity level of the combined background layer satisfies a fidelity level criterion, wherein the fidelity level is based on an area of the combined background layer compared to an area of the image of the obscured region combined with the area of the combined background layer; and providing, during the video conference, the video stream with modified background layers for presentation on one or more client devices of one or more of the plurality of participants of the video conference.
Facts
- Company
- Google (Google LLC)
- Official title
- Iterative background generation for video streams
- Patent number
- US12737846B2
- Application number
- 18237563
- Filed
- Aug 24, 2023
- Granted
- Sep 15, 2026
- Inventors
- 1
- Claims
- 17
Classified under
G06T 5/50 Physics & computingG06T 5/77 Physics & computingG06T 7/11 Physics & computingG06T 7/194 Physics & computingG06T 2207/10016 Physics & computingG06T 2207/20021 Physics & computingMore from Google in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.