Object extraction from video images system and method
AssigneePlaysight Interactive Ltd.
InventorsEvgeni Khazanov, Chen Shachar
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Abstract
A computer implemented method of object extraction from video images, the method comprising steps a computer is programmed to perform, the steps comprising: receiving a plurality of video images, deriving a plurality of background templates from at least one of the received video images, calculating a plurality of differences from an individual one of the received video images, each one of the differences being calculated between the individual video image and a respective and different one of the background templates, and extracting an object of interest from the individual video image, using a rule applied on the calculated differences.
Claims19
A computer implemented method of object extraction from video images, the method comprising steps a computer is programmed to perform, the steps comprising:
- receiving a plurality of video images;
- deriving a plurality of background templates from at least one of the received video images;
- calculating a plurality of differences from an individual one of the received video images, each one of the differences being calculated between the individual video image and a respective and different one of the background templates;
- and
- extracting an object of interest from the individual video image, using a rule applied on the calculated differences.
Apparatus for object extraction from video images, the apparatus comprising:
- a computer;
- a video image receiver, implemented on the computer, configured to receive a plurality of video images;
- a background template deriver, in communication with said video image receiver, configured to derive a plurality of background templates from at least one of the received video images;
- a difference calculator, in communication with said background template deriver, configured to calculate a plurality of differences from an individual one of the received video images, each one of the differences being calculated between the individual video image and a respective and different one of the background templates;
- and
- an object extractor, in communication with said difference calculator, configured to extract an object of interest from the individual video image, using a rule applied on the calculated differences.
A non-transitory computer readable medium storing computer executable instructions for performing steps of object extraction from video images, the steps comprising:
- receiving a plurality of video image;
- deriving a plurality of background templates from at least one of the received video images;
- calculating a plurality of differences from an individual one of the received video images, each one of the differences being calculated between the individual video image and a respective and different one of the background templates;
- and
- extracting an object of interest from the individual video image, using a rule applied on the calculated differences.
Dependencies are inferred from the claim text.