An apparatus and method for visualizing volume rendered images relative to
a viewing vector are provided, where the apparatus includes a processor,
a detection unit in signal communication with the processor for detecting
occluding contours of opacified structures in the image data, and a
resampling unit in signal communication with the processor for generating
curved multi-planar-reformat (MPR) resamplings that follow the occluding
contours of the opacified structures; and the method includes receiving a
volume rendered image, including distance values and surface normals for
every pixel that is opacified, gathering all opacified pixels that are
orthogonal to the viewing vector into a group of occluding points, and
separating the group of occluding points into individual occluding
contours.