title: New paradigms for interactive 3D volume segmentation
abstract: We present a new virtual reality-based interaction metaphor for semi-automatic segmentation of medical 3D volume data. The mouse-based, manual initialization of deformable surfaces in 3D represents a major bottleneck in interactive segmentation. In our multi-modal system we enhance this process with additional sensory feedback. A 3D haptic device is used to extract the centreline of a tubular structure. Based on the obtained path a cylinder with varying diameter is generated, which in turn is used as the initial guess for a deformable surface
keyphrases: interactive 3D volume segmentation interaction metaphor deformable surfaces deformable surfaces interactive segmentation multi-modal system sensory feedback 3D haptic device tubular structure virtual reality medical image segmentation mouse varying diameter cylinder deformable surface haptic interaction