Interactive volume segmentation is an essential and important step in medical image
processing. Conventional interactive methods typically demand significant amounts of time
and do not lend to a natural interaction scheme with the 3D volume. In this paper we present
a sketch-based interface for seeded region growing volume segmentation. In our approach,
the user freely sketches regions of interest (ROI) directly over the 3D volume. Parts of the
volume outside the ROIs are then automatically cut out in real-time. The user repeats this …