APPARATUS AND METHOD FOR RENDERING OF VOLUME DATA

摘要

PURPOSE: An apparatus and a method for rendering volume data are provided to perform volume rendering on volume data having multi-resolution without having to reconstruct the volume data to have uniform resolution, thereby performing efficiently and rapidly perform volume rendering while producing high-quality rendered image. CONSTITUTION: A method of rendering volume data having multi-resolution by a rendering apparatus comprises the steps of: dividing the volume data into a plurality of sub-volumes according to a resolution (1010); determining a sampling interval for each of the plurality of sub-volumes, based on respective resolutions of the plurality of sub-volumes (1020); and sampling sub-volumes present in a path of a ray passing through a pixel on a projection plane onto which the volume data is projected from one viewpoint, according to the determined sampling intervals (1030). [Reference numerals] (1010) Divide volume data into a plurality of sub-volumes according to a resolution; (1020) Determine a sampling interval for each of the plurality of sub-volumes, based on respective resolutions of the plurality of sub-volumes; (1030) Sample sub-volumes present in a path of a ray passing through a pixel on a projection plate onto which the volume data is projected from one viewpoint, according to the determined sampling intervals; (1040) Obtain rendering values of each pixel on a projection plate by compounding a plurality of sampling values corresponding to the sampling values on a projection plate among the acquired sampling values according to the sampling result; (AA) Start; (BB) End