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US 2019/0172212 A1Published application
Multi-modal data fusion for scene segmentation
OwnerBenjamin James Sheftel, Tryon Williamsinventors
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Abstract
Multiple detection techniques are used to determine whether the individual pixels in an image are background or foreground. The outputs from the multiple techniques are combined according to a confidence metric associated with each technique, which may vary from pixel to pixel. The resulting blended value for each pixel is compared with a threshold to determine whether the pixel is foreground or background.
Claims18
A method for segmenting an image into foreground and background comprising the steps of:
- capturing an image of a scene;
- for each of multiple detection techniques, processing the image to preliminarily determine that each pixel in the image is either background or foreground;
- for each pixel, combining the preliminary determinations in proportion to a confidence level attributed to each detection technique to yield a blended value for each pixel, wherein the blended value lies in a range varying from a value that represents background to a value that represents foreground;
- defining a threshold value that lies in the range;
- and
- for each pixel, determining that the pixel is foreground or background depending on which side of the threshold the blended value lies.
3 more elements
A system for segmenting an image into foreground and background comprising:
- a camera configured to capture an image of a scene;
- and
- a processor connected to the camera and configured to:
- receive the image from the camera;
- for each of multiple detection techniques, process the image to preliminarily determine that each pixel in the image is either background or foreground;
- for each pixel, combine the preliminary determinations in proportion to a confidence level attributed to each detection technique to yield a blended value for each pixel, wherein the blended value lies in a range varying from a value that represents background to a value that represents foreground;
- define a threshold value that lies in the range;
- and
- for each pixel, determine that the pixel is foreground or background depending on which side of the threshold the blended value lies.
6 more elements
Dependencies are inferred from the claim text.