Shape Processing: ShapeDNA

ShapeDNA is now available as part of the more extensive and highly efficient open source
LaPy Python package: github.com/Deep-MI/LaPy

ShapeDNA-tria is a package to compute accurate eigenvalues and eigenfunctions of the Laplace Beltrami operator using higher order FEM (with Dirichlet or Neumann boundary condition). You can try out two shape retrieval database examples here: Research:ShapeAnalysis.

• Computes eigenvalues and eigenfunctions
• Up to cubic FEM for highly accurate approximation
• Dirichlet or Neumann boundary condition
• Input: PLY, SMF,OBJ,OFF, VTK,ASC3d,STL,..
• Global mesh refinement for coarse meshes
• Tangential smoothing for low quality meshes
• Converter: Input/Output in different file formats

• First publication: Laplace-Spectra as Fingerprints for Shape Matching (SPM 2005)
• Journal: Laplace-Beltrami spectra as "Shape-DNA" of surfaces and solids (JCAD 2006 - most cited paper award)
• Book: Laplace Spectra for Shape Recognition (2006)
• Description of cubic FEM for Triangles: Hierarchical Shape Segmentation and Registration via Topological Features of Laplace-Beltrami Eigenfunctions (IJCV 2009)
• Comparison of LBO discretizations: Discrete Laplace-Beltrami Operators for Shape Analysis and Segmentation (SMI 2009)
• Application in Neuroimaging: Laplace-Beltrami Eigenvalues and Topological Features of Eigenfunctions for Statistical Shape Analysis (CAD 2009 - invited)

This program is a command line tool! The download package (...tar.gz) is a compressed archive containing a single directory.

Linux: unpack it with: tar xzvf shapeDNA-tria.tar.gz

MAC: probably Safari will already decompress the archive, double click the remaining shapeDNA-tria.tar file and it will extract the folder in Downloads. You can then move it anyplace you like.

Open a terminal, change into that directory and call it like: ./shapeDNA-tria ... (don't forget the './') or for Mac: ./shapeDNA-tria-osx . If you call it from a different path, make sure to set the environment variable SHAPEDNA_HOME to point to the directory with the key.txt file.

• Available to Universities for non-profit research purposes.
• To download: please register with your university email address below to obtain download link.
• The software is available as a LINUX and MAC OSX binary only. Windows binaries are not planned in the near future.
• Instead of an open source C++ release, we now distribute a highly efficient open source LaPy Python Package github.com/Deep-MI/LaPy, including ShapeDNA functionality. The binaries here are deprecated and will not be supported any longer.
• You may NOT use this software for commercial purposes.
  Copyright (c) 2009-2024 Martin Reuter. All rights reserved.