Method and software-implemented apparatus for detecting...

Details Method and software-implemented apparatus for detecting... Method and software-implemented apparatus for detecting...

2006-12-12

2006-12-12

Wu, Jingge (Department: 2624)

Image analysis

Applications

Target tracking or detecting

C382S199000, C382S224000

Reexamination Certificate

active

07149326

ABSTRACT:
A method for detecting the presence of an object in multi-dimensional imagery data is disclosed. The method includes: (a) providing multi-dimensional imagery data, including an array of pixels; (b) selecting a pixel in the array; (c) applying a linear mask to the selected pixel and local pixels, including selecting pixels linearly adjacent to the selected pixel, amplifying the z coordinate of the selected pixel, summing the z coordinates of the selected linearly adjacent pixels, and comparing the amplified z coordinate to the summed z coordinates to produce value A; (d) if value A exceeds specified threshold A, then applying a confirmation mask to the selected pixel and the selected linearly adjacent pixels, including selecting one linearly adjacent pixel and comparing the z coordinate of the selected pixel to the z coordinate of the linearly adjacent pixel to produce value B; and (e) if value B exceeds specified threshold B, then designating the selected pixel as being associated with the boundary of an object.

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