From NITRC Wiki

Spring Level Sets

Enright Test Demo (Video)

3D Active Contour Demo (Video)

2D Active Contour Demo (Video)

Multi-Object Segmentation Demo (Coming Soon!) (Video)

Introduction

¹Spring Level Sets are a new type of deformable model that merge meshes and level sets into one representation to provide interoperability between methods designed for either. The key idea is to use a constellation of disconnected triangle surface elements (springls) to define a level set. A Spring Level Set (SpringLS) can be interpreted as a mesh or level set and used in place of them in many instances. See MICCAI 2011 poster, paper, and YouTube channel.

¹B. C. Lucas, M. Kazhdan, and R. H. Taylor, "SpringLS: A Deformable Model Representation to provide Interoperability between Meshes and Level Sets", Medical Image Computing and Computer Assisted Intervention (MICCAI), Conference on, Toronto, Sept 18-22, 2011.

Demo

The project page for SpringLS has moved to Google Code. SpringLS is now an independent toolkit. You will need a nice computer, made in the last 2 years that has at least an Intel i5 or Xeon processor.   Source code is also available through the SVN for JIST's public-plugins. Bugs and feature requests should be reported to the JIST bugzilla.

The demo has been updated!

• It now includes a 2D segmentation demo that is pure Java.
• The Enright test has been modified to use RK4 time integration.
• The volumetric renderer now uses bilateral smoothing to improve iso-surface visualization.

JIST Distribution

The full source code for SpringLS is available as part of JIST's public plug-ins (See the NITRC project). You can download the latest build of JIST and its plug-ins from Vanderbilt's website. A plug-in developer's tutorial can be found on the JIST wiki. 

Remarks:

• The Springls plug-in includes a Java implementation that will run on anything, but it's atleast 10x slower than the OpenCL implenetation.
• To run the fast implementation, you will need to install the OpenCL runtime environment for your platform available from Intel's website.
• The plug-in for active contour segmentation is located in the JIST library under Algorithms -> CISST -> Springls -> Springls Active Contour 3D
• To run the demo from inside Eclipse, use the main class found in edu.jhu.cs.cisst.algorithms.springls.SpringlsDemo
• Pipeline layout files for imaging tasks will be released shortly and/or upon request.
• It's licensed LGPL, please adhere to the terms and conditions of the license.