level set for image segmentation

This Matlab code implements an edge based geometric active contour model without reinitialization.

Description

This Matlab code implements a new level set formulation, called distance regularized level set evolution (DRLSE), proposed by Chunming Li et al's in the paper "Distance Regularized Level Set Evolution and its Application to Image Segmentation", IEEE Trans. Image Processing, vol. 19 (12), 2010

The main advantages of DRLSE over conventional level set formulations include the following: 1) it completely eliminates the need for dreinitialization; 2) it allows the use of large time steps to significantly speed up curve evolution, while ensuring numerical accuracy; 3) Very easy to implement and computationally more efficient than conventional level set formulations.

This package only implements an edge-based active contour model as one application of DRLSE. More applications of DRLSE can be found in other published papers in the following website:

http://www.engr.uconn.edu/~cmli

• MATLAB release: MATLAB 6.5.1 (R13SP1)

[Jeff Jiang]

Nice work!

[chenyu ke]

 

[Y zz]

 

[Dan Hakim]

very nice algorithem

[jianfei ge]

Very good,thank you!

[Florian Jousset]

 

[reza goli]

Hi Chunming,
Thanks for your nice program. I only have one question?
Do you use normal and curvature forces in your implementation too, like the usual level set method?
Thanks again and waiting for your reply.

Reza

[miso yong]

hmm do u use snakes to perform the energy forces? i need it because i need to track the lip movement for my project..if u did can you share your work with me?
TQ

[alex z]

good

[chiwister john]

Excellent! I found his new work LBF is even better. It is insensitve to initlizations. His code can be downloaded from http://www.engr.uconn.edu/~cmli/

[Ronfard Guallrier]

Hi, Chunmingli, thank you for your programe, I have downloaded it. I also have visited your homepage, I found your CVPR07 paper is excellet. And, your code is awsome! But it is DLL file. Chunming, can you also uploade your source code for LBF? I am waiting for your reply...

[Ping Xiang]

Good job. I have downloaded and try to modify and use it in my research.
Thanks.

[Adam W]

Thank you. It was very easy to get it to work on my computer.

[shifang xu]

Thank you for sharing!
Maybe there is a little bug at line 36 in Demo1_ManualBinaryInitial.m.
//////////////////
??? Error using ==> -
Function '-' not defined for variables of class 'uint8'.

Error in ==> E:\?????\????? ROI\Segment_1\LevelSet_ChunmingLi_v0\Demo1_ManualBinaryInitial.m
On line 36 ==> initialLSF= c0*2*(0.5-BW); % initial level set function: -c0 inside R, c0 outside R;
////////////////////

It can be fixed by changing BW to double(BW).

[John Smith]

It does not work on realistic images, I used examples from Columbia University Image Library
(COIL-100)

[Sang-Hyuk Kim]

Thank you. This code is very easy to use and performance is very good. This one is helpful for me.

[fido genial]

Excellent job

[Radhika]

I tried lip segmentation with this but the results are not veyr satifactory. Any suggestions as to what other algorithms can be used?

thanks

[TIAN RUONAN]

thanks your help.

[Nitin Kumar]

 

[Ankit Goyal]

Thanks

[atha lakuary]

thanks for ur help :)

[Samarjeet]

thanks..good work :)

[akui]

Thanks

[sun]

thanks

[ji]

thanks for your help

[Su Dongcai]