catfit

2004-05-09

catalog fit Use prior knowledge about expected shape, represented by a shape catalog, to permit rapid and accurate reconstruction from small amounts of irregularly sampled, noisy 3d point data. Intended for use in computer-aided surgery and other medical interventions. Designed, documented, and implemented following ISO 9000-3 and FDA guidelines for software reliability. In C++, for Win32 and various Unix platforms.

The time from invention to delivery of the C++ version to the original industrial research sponsor was approximately 6 months. The original C++ has since been largely supplanted by Java code in the Ahn package, which is both more reliable, more flexible, and faster. The Ahn version is being used in a number of projects, including the ventriculogram segmentation.

To the right is a sample result of fitting a left ventricle to about 30 data points. The red lines are residuals, the differences between the fitted and 'true' surface.

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