Improving Camera Travel for Immersive Colonography
Soraia Figueiredo Paulo, Daniel Medeiros, Pedro Borges, Joaquim Armando Jorge, Daniel Simões Lopes · 2020 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW) · 2020
Colonography allows radiologists to navigate intricate subject-specific 3D colon images. Typically, travel is performed via Fly-Through or Fly-Over techniques that enable semi-automatic traveling through a constrained, well-defined path. While these techniques have been studied in non-VR desktop environments, their performance is yet not well understood in VR setups. In this paper, we study the effect of both techniques in immersive colonography and introduce the Elevator technique, which maintains a fixed camera orientation throughout navigation. Results suggest Fly-Over was overall the best for lesion detection at the cost of slower procedures, while Fly-Through may offer a more balanced trade-off between speed and effectiveness.