Rank: 146 based on 401 downloads (last 30 days) and 15 files submitted
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Su Dongcai

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Make a living by algorithms

Professional Interests:
Image processing, computer vision

 

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25 Jan 2012 Screenshot Apply djkstra algorithm to trace contour trace single object's contour via the classic shortest path algorithm Author: Su Dongcai image processing, demo, djstra, shortest path, djkstra 8 1
22 Jan 2012 Screenshot bwlabel via disjoint set simple cpp codes to label objects in 2D binary image Author: Su Dongcai image processing, demo, disjoint set 9 0
20 Jan 2012 Screenshot Solve the puzzle via djstra shortest path algorithm an interesting application of djstra algorithm Author: Su Dongcai djstra, demo, image processing, graph 3 0
12 Jan 2012 Screenshot Active contour without edge implementation of a well known level set method, easy to read code Author: Su Dongcai level set, active contour withou... 34 1
  • 5.0
5.0 | 1 rating
11 Jan 2012 Screenshot Apply hausdorf distance to tile image classification demonstrate the hausdorf distance via a concrete application Author: Su Dongcai mathematics, image processing, hausdorf distance 8 0
Comments and Ratings by Su View all
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12 Jan 2012 level set for image segmentation This Matlab code implements an edge based geometric active contour model without reinitialization. Author: Chunming Li

20 Dec 2011 Efficient Graph based image segmentation A new version of previous program, support color image. Author: Su Dongcai

Sorry folks:
I made a mistake.This code is compiled on msvc6++, windows xp system.
02 Dec 2011 Classic AdaBoost Classifier Weak threshold classifier boosted to strong Classifier with Adaboost Author: Dirk-Jan Kroon

Neatly codes, very nice demonstration
01 Dec 2011 System of linear congruences Solution to Simultaneous Linear Congruences Author: Mike Sheppard

01 Dec 2011 Chinese reminder theorem just for fun Author: Su Dongcai

Mike Sheppard:
Thanks for broaden my eye side. The 'sunzTheorem' poster here has the computational complexity of O(N1+..Nm) using your notation, which means it can only handle small magnitude numbers.

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23 May 2013 Efficient Graph based image Segmentation A simple and efficient graph based image segmentation algorithm Author: Su Dongcai Cindy

Hi Su,

Nice work! Thanks for the sharing!

Would you please kindly help me on the following 2 questions?

1. There are two methods/applications in ref[1]: Grid Graph and Nearest Neighbor Graph. For grid graph, the input is the image. For NN Graph, the input can be the feature of each pixel. I can't find the NN Graph method in ref[2] and your code. Do you know if there is such code publicly available?
2. for the parameters, how to correspond yours with the ones in ref[1]? say, sigma, threshold(you use .5 while ref[1] use 100-300)?

Thanks in advance!
17 May 2013 Euclidean skeleton Generate euclidean skeleton by watershed algorithm and the "rigides gradient" Author: Su Dongcai zhao, sanqin

This code is very great!
however,I want to know how to select the paremeter, such as thresh, radius.

I try many times for the above parameter,but the result is not good.

thanks your help!
24 Mar 2013 Active contour without edge implementation of a well known level set method, easy to read code Author: Su Dongcai Prabhakar

very good i want to cite your work how to give
16 Feb 2013 Efficient Graph based image Segmentation A simple and efficient graph based image segmentation algorithm Author: Su Dongcai Carl

Hi Su,

I am new in graph-based segmentation.
In the paper, there is parameter k usually set as 150/300. What is k value in your code, how do I change it?

I got segmentation images from all r,g and b channel, how can I intersect with them?

Can someone else guide me through this? I will be really appreciated.
19 Jan 2013 Efficient Graph based image Segmentation A simple and efficient graph based image segmentation algorithm Author: Su Dongcai Carl

Hi Su,

Thanks for the good work. Could you please let me know how to run it with color image? Thanks a lot.
Top Tags Applied by Su
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image processing, demo, djstra, graph, mathematics
Files Tagged by Su View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
25 Jan 2012 Screenshot Apply djkstra algorithm to trace contour trace single object's contour via the classic shortest path algorithm Author: Su Dongcai image processing, demo, djstra, shortest path, djkstra 8 1
22 Jan 2012 Screenshot bwlabel via disjoint set simple cpp codes to label objects in 2D binary image Author: Su Dongcai image processing, demo, disjoint set 9 0
20 Jan 2012 Screenshot Solve the puzzle via djstra shortest path algorithm an interesting application of djstra algorithm Author: Su Dongcai djstra, demo, image processing, graph 3 0
12 Jan 2012 Screenshot Active contour without edge implementation of a well known level set method, easy to read code Author: Su Dongcai level set, active contour withou... 34 1
  • 5.0
5.0 | 1 rating
11 Jan 2012 Screenshot Apply hausdorf distance to tile image classification demonstrate the hausdorf distance via a concrete application Author: Su Dongcai mathematics, image processing, hausdorf distance 8 0

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