regionbased_seg_demo.zip - This code implements the well-known Chan-Vese segmentation algorithm from the paper "Active Contours Without Edges."
This technique deforms an initial curve so that it separates foreground from background based on the means of the two regions. The technique is very robust to initialization and gives very nice results when there is a difference between the foreground and background means.
This code uses active contours and level sets in the implementation. It could also serve as a good framework for implementing all kinds of region-based active contour energies.
1.) Download
2.) Unzip
3.) Run >>region_seg_demo
See this site for experiments, videos, and more information on segmentation, active contours, and level sets:
[ http://www.shawnlankton.com/2007/05/active-contours/ ],2008-08-28 04:09:41,下载125次
STBBFolder.zip - This submission contains a collection of codes in different programming languages that implement the analytical framework proposed in
Koay CG, Sarlls JE, Ö zarslan E.
* Three Dimensional Analytical Magnetic Resonance Imaging Phantom in the Fourier Domain. Magn Reson Med. 58: 430-436 (2007)
The article above can be obtained from:
http://dir2.nichd.nih.gov/nichd/stbb/publications.html
,2008-07-10 01:18:12,下载16次
Vectorized.rar - The raytracer is made as a mini project for a computer vision and graphics lecture. Started as for statements and ended as this fast vectorized version. The speed up is something like 10 minutes versus 10-12 seconds for a 1024x1024 image.
It is possible to change properties for the object, material,lighting and image size, plus additional options,2008-07-10 01:04:27,下载3次
Fraunhofer.zip - This file contains a program with GUI, that calculate and display a difraction picture on a rectangular hole using Fraunhofer integral in dependence of hole sizes and intensity of light. May be useful for university student of any optics specialities.
,2008-07-10 01:02:50,下载21次
plot_square.rar - Given a center and a radius, this program produces the coordinates of a square whether hollow or solid. This program is especially useful for drawing squares around circles. The result is a set of coordinates that is suitable for use to produce the square shape on a matrix.
,2008-07-10 01:00:20,下载2次
ellipseMatrix.rar - ellipseMatrix
=== =
Function: ellipseMatrix
Version: 1.1
Author: Nicolae Cindea
Syntaxe
_______
ellipseMatrix(y0, x0, a, b, teta, Image, color)
Description
___________
Set the elements of the matrix Image which are in the interior of the
ellipse E with the value color. The ellipse E has center (y0, x0), the
major axe = a, the minor axe = b, and teta is the angle macked by the
major axe with the orizontal axe.
,2008-07-10 00:49:23,下载5次