Edge detection based on background change

Details Edge detection based on background change Edge detection based on background change

2006-04-18

2006-04-18

Zimmerman, Mark (Department: 2625)

Image analysis

Pattern recognition

Feature extraction

C382S154000

Reexamination Certificate

active

07031525

ABSTRACT:
A method detects edges of an object in a scene by first acquiring a static image of the scene when the scene is static, and a live image of the scene including the object. A reference image is constructed from the static image. Then, image gradients of the reference image are compared with image gradients of the live image to identify edges of the object in the live image.

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Toyama et al., “Wallflower: Principles and Practice of Background Maintenance,” Proceedings of the International Conference on Computer Vision, pp. 255-261, 1999.

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