COMPUTER TOMOGRAPHY IMAGE RECONSTRUCTION APPARATUS USING COLOR CHANNEL OF GRAPHIC PROCESSING UNIT AND METHOD FOR THE SAME

摘要

PURPOSE: A method and apparatus for reconstructing a CT image using a color channel of a GPU are provided to rapidly reconstruct the CT image by simultaneously filtering and loading a plurality of projection images in the color channel of the GPU. CONSTITUTION: A tomography unit(210) obtains a plurality of projection images. A filter applying unit(220) loads and filters the plurality of projection images in a memory of a color channel. A reverse projection applying unit(230) applies a reverse projection method to the plurality of projection images loaded in the memory of the color channel. An image obtaining unit obtains a CT image by applying the reverse projection method to the plurality of projection images loaded in the memory.