Method for generating a display data set with volume renders, computing device and computer program

摘要

A method for generating a display data set to display a three-dimensional source data set of at least one display parameter by volume rendering, wherein a volume rendering integral with an erasure function that assigns a value of the display parameter an extinction value per length, and a color function that assigns a value of the display parameter at least one color value per track , having integrand is evaluated for determining the display data, and wherein the volume rendering integral in Contributions from third opacities as dependent on the extinction function integrals and third color coefficient as dependent on the color feature and the extinction function integrals, each defined by a start value and an end value of the display parameter and a the interval over which is integrated descriptive Wunschabtastlänge described, is decomposed, whereby to evaluate the volume rendering integral the steps carried be carried: - based on a division of the reference to a fixed, given by the Wunschabtastlänge independent predetermined Vorgabeabtastlänge integration length into at least two subsections, which are described by at least one partition parameter, providing a number corresponding to the number of sub-sections of pre-integration tables, of which at least is refer to the number minus one integrations over different sub-sections, in which one to be used for calculating a contribution of the volume rendering integral Vorgabeabtastlängen-opacity and at least one Vorgabeabtastlängen color coefficient each associated with a start value and an end value of the display parameter, - for any contribution of the volume rendering integral determination of Vorgabeabtastlängen-opacities and the Vorgabeabtastlängen color coefficients from the pre-integration tables and calculating the third, converted to the Wunschabtastlänge opacities from the respective Vorgabeabtastlängen-opacities and the ratio of Wunschabtastlänge and Vorgabeabtastlänge and the third color coefficients from the Vorgabeabtastlängen- opacities, the Vorgabeabtastlängen-color coefficients and the ratio of Wunschabtastlänge and Vorgabeabtastlänge, and - Determine the volume rendering integral on the contributions.