Patent ID: 7085406
Filing Date: 2006-08-01
Classification: G06T

Abstract:
1. A method for generating transfer functions for use in volume rendering of three-dimensional data of an object volume, the method comprising: obtaining the three-dimensional data of the object volume; evaluating selected characteristics for a plurality of samples of the three-dimensional data; and, computing a transfer function range for volume tendering the three-dimensional data based on the selected characteristics, wherein the computing of a transfer function range is performed according to: where TF(x) is the transfer function, x is a voxel intensity value, A and B are opacity values and C is the y-intercept with an opacity y-axis, and further where LL is a lower limit of the transfer function range and UL is an upper limit of the transfer function range and wherein the lower limit and the upper limit are computed according to: where μ, σ, N are the mean, the standard deviation, and the number of standard deviations respectively.