Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Method, device, and system for calculating a geometric system model using an area-simulating-volume algorithm in three dimensional reconstruction
A method, device, and system for calculating first and second distance ratios used to calculate a geometric probability between a voxel and a tube-of-response (TOR). The method includes determining a first-edge-line including a first-middle-point, determining a second-edge-line including a second-middle-point, determining a middle line of the TOR, projecting a first point of a first surface of the voxel to the middle line, projecting a second point of a second surface of the voxel to the middle line, calculating a first distance between one of the first and second middle-points and the first-projected-point, and a second distance between the one of the first and second middle-points and the second-projected-point, and determining a first distance ratio based on the first and second distances. The method calculates the second distance ratio similarly to the first distance ratio. The geometric probability is proportional to the product of the first and second distance ratios.
Toshiba Medical Systems Corporation Kabushiki Kaisha Toshiba
G A
G01T A61B
inventional additional
Wenli Hongwei
Wang Ye