Image analysis – Applications – Motion or velocity measuring
Patent
1996-09-30
2000-06-13
Johns, Andrew W.
Image analysis
Applications
Motion or velocity measuring
382173, G06K 900
Patent
active
060758759
ABSTRACT:
Homogeneous moving objects of arbitrary shapes are segmented and tracked with respect to the motion of the objects. In an intraframe mode of operation, a segmentation method includes obtaining a motion representation of corresponding pixels in the selected video image frame and a preceding video image frame to form motion-segmented video image features. Video image features are also segmented according to their spatial image characteristics (e.g., color) to form spatially-segmented video image features. Finally, the video image features are jointly segmented as a weighted combination of the motion-segmented video image features and the spatially-segmented video image features. The joint motion and spatial segmentation of image features provides enhanced accuracy in representing moving image features. This enhanced accuracy is particularly beneficial because the motion of image features is a significant display characteristic for human observers.
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Johns Andrew W.
Microsoft Corporation
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