VIDEO BACKGROUND REPLACEMENT SYSTEM
First Claim
1. A video background processing system, comprising:
- a memory device configured to store a video stream including a plurality of successive first video frames at a first resolution;
a hardware processor configured to;
reduce the resolution of the plurality of successive first video frames from the first resolution to a second resolution lower than the first resolution and thereby generate a plurality of second video frames;
determine a foreground portion and a background portion in the plurality of second video frames and to produce first data indicative of locations of the foreground and background portions in the plurality of second video frames at the second resolution;
use the first data to generate second data indicative of locations of the foreground and background portions in the plurality of successive first video frames; and
use replacement background content and the second data to generate a plurality of combined video frames at the first resolution, each combined video frame including the foreground portion from a first video frame and the replacement background content.
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Accused Products
Abstract
A video background processing system is disclosed that is configured to receive a video stream including a plurality of successive first video frames at a first resolution. The system comprises a video resolution modifier configured to reduce the resolution of the first video frames from the first resolution to a second resolution lower than the first resolution and thereby generate second video frames. The system also comprises a foreground determiner configured to determine a foreground portion and a background portion in the second video frames and to produce first foreground data indicative of locations of the foreground and background portions in the second video frames at the second resolution, wherein the foreground determiner is configured to use the first foreground data to generate second foreground data indicative of locations of the foreground and background portions in the first video frames. The system also comprises a compositor circuit configured to use replacement background content and the second foreground data to generate combined video frames at the first resolution, each combined video frame including the foreground portion from a first video frame and the replacement background content. A corresponding method is also disclosed.
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Citations
47 Claims
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1. A video background processing system, comprising:
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a memory device configured to store a video stream including a plurality of successive first video frames at a first resolution; a hardware processor configured to; reduce the resolution of the plurality of successive first video frames from the first resolution to a second resolution lower than the first resolution and thereby generate a plurality of second video frames; determine a foreground portion and a background portion in the plurality of second video frames and to produce first data indicative of locations of the foreground and background portions in the plurality of second video frames at the second resolution; use the first data to generate second data indicative of locations of the foreground and background portions in the plurality of successive first video frames; and use replacement background content and the second data to generate a plurality of combined video frames at the first resolution, each combined video frame including the foreground portion from a first video frame and the replacement background content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of replacing a background portion in a video stream having a foreground portion and the background portion, the method comprising:
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receiving a video stream including a plurality of successive first video frames at a first resolution; reducing the resolution of the plurality of successive first video frames from the first resolution to generate a plurality of second video frames at a second resolution lower than the first resolution; determining a foreground portion and a background portion in the plurality of second video frames and producing first data indicative of locations of the foreground and background portions in the plurality of second video frames at the second resolution; using the first data to generate second data indicative of locations of the foreground and background portions in the plurality of second video frames; and using replacement background content and the second data to generate a plurality of combined video frames at the first resolution, each combined video frame including the foreground portion in a first video frame and the replacement background content. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A video background processing system, the system configured to receive a video stream including a plurality of successive first video frames at a first resolution, the system comprising:
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a video resolution modifier circuit configured to reduce the resolution of the plurality of successive first video frames from the first resolution to a second resolution lower than the first resolution and thereby generate a plurality of second video frames; a foreground determiner circuit configured to determine a foreground portion and a background portion in the plurality of second video frames and to produce first data indicative of locations of the foreground and background portions in the plurality of second video frames at the second resolution, wherein the system is configured to use the first data to generate second data indicative of locations of the foreground and background portions in the plurality of successive first video frames; and a compositor circuit configured to use replacement background content and the second data to generate a plurality of combined video frames at the first resolution, each combined video frame including the foreground portion from a first video frame and the replacement background content.
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Specification