A method is proposed for virtual endoscopy for medical 3D image display and processing in computed tomography. The method includes providing a first evaluation volume on the basis of a 3D data volume and providing an observer path through the first evaluation volume. To allow automatic calculation of the observer path, even for the case in which no continuous path can be found through the evaluation volume, the present concept has provision for automatic ascertainment of at least one further evaluation volume, which is separate from the first evaluation volume, on the basis of the 3D data volume according to predetermined criteria.
