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CCB > CCBSIGS > ShapeToolLibraryProgram > ShapeToolsDataAnalysisProtocols > ShapeToolsElasticWarpProtocolV1_0

Fluid Warp Protocol

Overview

Many neurological analyses use a sophisticated fluid warp to map into a common reference system the brain structure surfaces being studied. The Shape Tools fluid warp protocol described here is similiar to this original work. Use of the ShapeTools library, the Java language, the original protocol's users experiences allow the ShapeTools implementation to offer an alternative to the original methods whose results will be comparable. Changes in the algorithms used will cause small differences between the results of this protocol, and the original.

Features of the ShapeTools fluid warp protocol

  • Fewer intermediate files.
  • Fewer application programs.
  • Topology aware averaging programs prevent fiducial lines from "falling off".
  • Java based applications are portable to many computers, including the Loni GRID engine.
  • Recent advances in PDE solution techniques (multigrid) greatly speed the calculations.
  • Support for more file formats (due to use of ShapeTools library).

Planned features (not yet implemented)

  • Accessible as a LONI Pipeline data flow.
  • Improved data file formats retain coordinate value precision
  • The applications used in this protocol are available from the LONI Software distribution system.