Patent ID: 6995763
Filing Date: 2006-02-07
Classification: G06T

Abstract:
1. A system of extracting a visual feature from a volumetric dataset using an approximate volume, the system comprising: a) a display for displaying said volumetric dataset; b) an input device for defining a selected number of regions distributed in the displayed volumetric dataset, each of the regions containing a cross section of said visual feature therein; c) an interpolator for generating the approximate volume containing the selected regions, the approximate volume comprising a set of voxels selected from said volumetric dataset; d) an operator for specifying a plurality of voxels not containing said visual feature in said set of voxels to generate a mask; and e) a volume renderer for using said mask to render said volumetric dataset to extract said visual feature therefrom; wherein the selected number of regions are a subset of the total number of images contained in said volumetric dataset.