We study the effectiveness of stereoscopy and smooth motion as 3D cues for medical interpretation of vascular structures as obtained by 3D medical imaging techniques. We designed a user study where the user has to follow a path in a mazelike solid shaded 3D structure. The user controls rotation of the model. We measure user performance in terms of time taken and error rate. The experiment was executed with 32 (medical and non-medical) users. The results show that motion cue is more important than stereoscopy, and that stereoscopy has no added value when motion is already present, which is not consistent with previous experiments. Categories and Subject Descriptors H.5.2 [Information Interfaces and Presentation]: User interfaces--Evaluation/methodology; I.3.7 [Computer Graphics]: Three-dimensional Graphics and Realism General Terms Graphics, Human Factors Keywords motion cue, stereoscopy, medical visualization, angiography
Boris W. van Schooten, Elisabeth M. A. G. van Dijk