Active geometric shape models

Version 1.6.0.0 (4.43 MB) by Quan Wang
The active geometric shape model is a novel approach for fitting geometric shapes in images.
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Updated 28 Apr 2014

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Cite As

Quan Wang (2026). Active geometric shape models (https://se.mathworks.com/matlabcentral/fileexchange/38358-active-geometric-shape-models), MATLAB Central File Exchange. Retrieved .

Wang, Quan, and Kim L. Boyer. “The Active Geometric Shape Model: A New Robust Deformable Shape Model and Its Applications.” Computer Vision and Image Understanding, vol. 116, no. 12, Elsevier BV, Dec. 2012, pp. 1178–94, doi:10.1016/j.cviu.2012.08.004.

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MATLAB Release Compatibility
Created with R2013b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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AGSM_toolkit_v2.3/code/

AGSM_toolkit_v2.3/code/arbitrary_ellipse_fitting/

AGSM_toolkit_v2.3/code/circle_fitting/

AGSM_toolkit_v2.3/code/force_field/

AGSM_toolkit_v2.3/code/line_fitting/

AGSM_toolkit_v2.3/code/math/

AGSM_toolkit_v2.3/code/spline_contour_fitting/

Version Published Release Notes
1.6.0.0

1 Robustness of closed contour fitting is dramatically improved by smart initialization (see InitialCircle.cpp).

2 Line fitting is compared to Hough transform and RANSAC least squares.

3 Circle fitting is compared to circle Hough transform.

1.5.0.0

New features in AGSM version 2.2:

1 We made the AGSM Canvas app more robust by smart initialization and image padding.

2 Only one app for both 64-bit Windows and 64-bit Mac.

1.4.0.0

New features in AGSM version 2.1:

1 We added the AGSM Canvas App, which is an interactive software.

1.3.0.0

Fixed some typos in PPT.

1.2.0.0

1 We added the line fitting and circle fitting packages.

2 We re-implemented GVF in C++/MEX to make it much faster.

3 We implemented Bresenham algorithm in C++/MEX to generate points on a line.

4 All force/torque computations in C++/MEX.

1.1.0.0

changed the description
1.0.0.0