Bitmap image segmentation using a charge model for pixels

Details Bitmap image segmentation using a charge model for pixels Bitmap image segmentation using a charge model for pixels

1992-03-31

1993-11-30

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

382 48, 382 61, G06K 900

Patent

active

052673260

ABSTRACT:
A method and apparatus for segmenting a bitmapped image (200). In general, the bitmap image is modeled as a parallel plate capacitor. In so doing, opposing boundaries (302, 304) of the bitmap image are each assigned a voltage value and each pixel (300, 301) within the bitmap image is assigned a charge value. Generally, a positive charge is assigned to the pixels which comprise a pattern in the bitmap image and the remainder of the pixels are assigned a zero charge. A potential distribution field (400) which results from the interaction of the boundary voltages with the pattern of charges is determined by numerically solving a two-dimensional Poison's equation. Each contiguous path (306) of steepest potential gradient from one boundary (304) to opposing boundary (302) forms a demarcation line along which the image is segmented. Each resulting segmented image (500) is stored as an individual file for subsequent processing.

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