CCB Individual Researcher's Project Pages - BinDong

Non-Local Mean Shape Smoothing

Reference:

• ftp://ftp.math.ucla.edu/pub/camreport/cam07-44.pdf
• This article will also be available (accepted for pub) in SIAM MMS Journal.

Pipeline File

• NLM_SurfaceDenoising_BinDong_022708.pipe

LONI Grid Usage (TBD)

• Source folder: /cxfs/ccb/CCB_SW_Tools/TBD
• Instructions on building: /cxfs/ccb/CCB_SW_Tools/TBD
• Building (cerebro-rcc.loni.ucla.edu): %> /cxfs/ccb/CCB_SW_Tools/TBD
• Example scripts /cxfs/ccb/CCB_SW_Tools/TBD
• CRANIUM Execs: /cxfs/ccb/CCB_SW_Tools/TBD
• SVN: svn+ssh://ccb@svn.loni.ucla.edu/cvs/ccb/TBD

Program description

• Program has been tested it on the WM masks of 10 subjects
• Currently doing GM mask tests
• Speed: If the server is not very busy, it takes about 30 minutes for each job (4 times slower than on a PC)
• Parameters to adjust:
  • Before we had many parameters. All except 2 are now fixed because they are less important
  • The first parameter is the width of the narrow band choosing between 1 and 3. Larger values require more memory; smaller values many not give a desirable result. A value=2 should work well most of the time.
  • The second parameter controls smoothness. Smaller values result in rougher surfaces; larger values return smoother surfaces, although some features may be lost. A 1<=value<=4 should return good results. For exampe we used value=3.8 for the WM mask tests.

File Format Specifications

• Input files are Analyze IMG/HDR maks (1/0) binary files
• Outputs are surfaces in OBJ Format

Additional Materials

• TBD