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US 2012/0237125 A1Published application
Isolating Background and Foreground Objects in Video
OwnerYen Hsiang Chewinventor
Life of this patent
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Abstract
In accordance with some embodiments, background subtraction can be performed by iteratively computing a new expected background image from an old background image using a plurality of consecutive frames. The new expected background image may be computed to be closer to a current frame's pixel value. In some embodiments, a new expected background image may be based on user supplied values so that a user may determine how fast a background image changes.
Claims20
A method comprising:
- iteratively computing a new expected background image from an old background image using a plurality of consecutive frames;
- and
- adjusting pixel values of the old background image based on whether the pixel values are larger or smaller than the pixel values of each consecutive frame.
A non-transitory computer readable medium storing instructions to enable a processor to:
- iteratively compute a new expected background image from an old background image using a plurality of consecutive frames;
- and
- adjust pixel values of the old background image based on whether the pixel values are larger or smaller than the pixel values of each consecutive frame.
An apparatus comprising:
- a processor to iteratively compute a new expected background image from an old background image using a plurality of consecutive frames and to adjust pixel values of the old background image based on whether the pixel values are larger or smaller than the pixel values of each consecutive frame;
- and
- a storage coupled to said processor.
Dependencies are inferred from the claim text.