ADAPTIVE IMAGE INTERPOLATION FOR VOLUME RENDERING

摘要

Because of the increasing size of digital images available, an interactive rendering speed at a high display quality continues to be a challenging task. According to the present invention, a sampling frequency of a ray casting for generating the projection image is varied in dependence of information derived from the 3D volume data during rendering. Furthermore, an interpolation is performed for skipped pixels for which no ray casting was performed in the projection image, based on-this information. Advantageously, the present invention allows for an improved image quality, while reducing a computation time required to generate an output image.