File Exchange

image thumbnail

gaussian mix fit of multiple connected ellipses

version 1.1.0.0 (4.22 KB) by Georg D
processes image data containing connected ellipses. we try to fit a gaussian mixture to ellipses.

3 Downloads

Updated 22 Jul 2011

View License

the pixels in an image are weighted with their intensity. we try to fit a pre-defined number of connected (partially overlapping) ellipses onto this image, using gmdistribution.fit from matlab's statistics toolbox.
i used this to separate ellipse-shaped objects (with a size of ~20 to 30 pixels per object) in a movie, when they come too close to simply 'blob' them apart.

see descriptions in exampleFindEllipses.m (example function) and fitMixGauss.m (the actual fitting function)

Comments and Ratings (1)

Han Lei

Gaussian mixture modelling is a good way to model the multi-connected ellipse.

Updates

1.1.0.0

Title, Summary and Description Text

MATLAB Release Compatibility
Created with R2008b
Compatible with any release
Platform Compatibility
Windows macOS Linux