Method and arrangement for determining an object contour

Details Method and arrangement for determining an object contour Method and arrangement for determining an object contour

2004-07-21

2008-11-11

Johns, Andrew W. (Department: 2624)

Image analysis

Pattern recognition

Feature extraction

C382S199000, C382S134000, C382S133000, C382S280000, C359S196100, C359S210100

Reexamination Certificate

active

07450762

ABSTRACT:
A method is disclosed for determining a sought object contour in a digital microscope image, which includes a plurality of image elements and reproduces a biological material. The method includes assigning edge values to at least a first subset of the image elements in the image; assigning values of a first gradient vector component whose values each includes a first linear combination of edge values of some surrounding image elements to at least a second subset of the image elements in the image; assigning values of a second gradient vector component whose values each include a second linear combination of edge values of some surrounding image elements to at least a third subset of the image elements in the image; and calculating an estimate of the sought object contour based upon values of the first and second gradient vector components.

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