Rank: 279 based on 217 downloads (last 30 days) and 4 files submitted
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Anton Semechko

E-mail
Company/University
University of Toronto
Lat/Long
43.6614990234375, -79.39499664306641

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Professional Interests:
Signal/medical image processing, computer assisted design and modeling, computational anatomy and biomechanics, ...

 

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Files Posted by Anton View all
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(last 30 days) 		Comments Rating
29 Jan 2012 Screenshot Nonlinear Relaxation Labeling for Image Processing Improve spatial coherence of a 2D monochromatic/multispectral image using probabilistic relaxation Author: Anton Semechko nonlinear relaxation ..., relaxation labeling, relaxation labelling, probabilistic relaxat..., image segmentation, image regularization 59 0
23 Jan 2012 Screenshot Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko polygon simplificatio..., polygon decimation, image processing 58 5
10 Dec 2011 Screenshot SPHERICAL PARAMETRIZATION Embed closed genus-0 mesh onto the surface of a unit sphere using Tutte or harmonic maps. Author: Anton Semechko harmonic map, conformal map, tutte map, barycentric map, spherical embedding, spherical parametriza... 23 0
07 Jan 2010 Screenshot EXACT HISTOGRAM SPECIFICATION/EQUALIZATION Exact histogram specification/equalization for 2-D monochromatic images. Author: Anton Semechko contrast enhancement, exact histogram match..., histogram matching, histogram specificati..., exact histogram equal..., histogram equalizatio... 77 1
  • 4.5
4.5 | 2 ratings
Comments and Ratings by Anton View all
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03 Feb 2012 Toolbox Fast Marching A toolbox for the computation of the Fast Marching algorithm in 2D and 3D. Author: Gabriel Peyre

Anyone get an error:

"??? Undefined function or method 'perform_front_propagation_mesh' for input arguments of type 'double'."

when trying to perform fast marching on a surface mesh? The contents of the entire toolbox have been added to the path, so it appears that perform_front_propagation_mesh.m was not provided by author.
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko

Not sure about Matlab implementation, but you can find C implementation if you follow the link provided on this page:
http://www.insight-journal.org/browse/publication/829
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko

@ Andrii, what is it you want to achieve by orthogonalizing a set of input points? Could you clarify what this operation means or perhaps provide a reference?
12 Dec 2011 HotellingT2 Hotelling T-Squared testing procedures for multivariate samples. Author: Antonio Trujillo-Ortiz

exactly what I was looking for, thank you
12 Dec 2011 AnDartest Anderson-Darling test for assessing normality of a sample data. Author: Antonio Trujillo-Ortiz

thanks a bunch :)
Comments and Ratings on Anton's Files View all
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Updated File Comment by Comments Rating
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko Andrii

Thank you for the link.
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko Semechko, Anton

Not sure about Matlab implementation, but you can find C implementation if you follow the link provided on this page:
http://www.insight-journal.org/browse/publication/829
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko Andrii

It is for building extraction from aerial images. After segmentation process boundaries are zigzag-shaped with many intrusions. I would like to simplify polygons but to maintain their essential shape. It means buildings should have orthogonal angles and small extrusions should be cut off. So I am looking for some implementation algorithm in MatLab. Like this: http://img812.imageshack.us/img812/3284/exampleus.png
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko Semechko, Anton

@ Andrii, what is it you want to achieve by orthogonalizing a set of input points? Could you clarify what this operation means or perhaps provide a reference?
19 Jan 2012 Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko Andrii

Hi Anton. I have tried your function.
It works very well.
Do you know about some function like your but
which can simplify and after orthogonalize input set of points?

Top Tags Applied by Anton
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image processing, barycentric map, conformal map, contrast enhancement, exact histogram equalization
Files Tagged by Anton View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
29 Jan 2012 Screenshot Nonlinear Relaxation Labeling for Image Processing Improve spatial coherence of a 2D monochromatic/multispectral image using probabilistic relaxation Author: Anton Semechko nonlinear relaxation ..., relaxation labeling, relaxation labelling, probabilistic relaxat..., image segmentation, image regularization 59 0
23 Jan 2012 Screenshot Decimate Polygon Simplify a 2D closed, piecewise linear contour by specifying boundary offset tolerance. Author: Anton Semechko polygon simplificatio..., polygon decimation, image processing 58 5
10 Dec 2011 Screenshot SPHERICAL PARAMETRIZATION Embed closed genus-0 mesh onto the surface of a unit sphere using Tutte or harmonic maps. Author: Anton Semechko harmonic map, conformal map, tutte map, barycentric map, spherical embedding, spherical parametriza... 23 0
07 Jan 2010 Screenshot EXACT HISTOGRAM SPECIFICATION/EQUALIZATION Exact histogram specification/equalization for 2-D monochromatic images. Author: Anton Semechko contrast enhancement, exact histogram match..., histogram matching, histogram specificati..., exact histogram equal..., histogram equalizatio... 77 1
  • 4.5
4.5 | 2 ratings
15 Dec 2006 Screenshot EQSP: Recursive Zonal Sphere Partitioning Toolbox A suite of Matlab functions intended for use in exploring equal area sphere partitioning. Author: Paul Leopardi approximation, interpolation, sphere, partition, spherical, code 6 2
  • 5.0
5.0 | 2 ratings

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