An Empirical Evaluation of Labelling Method in Augmented Reality

In an augmented reality system, labelling technique is a very useful assistant technique for browsing and understanding unfamiliar objects or environments, through which the superimposed virtual labels of words or pictures on the real scene provide convenient information to the viewers, expand the recognition to area of interests and promote the interaction with real scene. How to design the layout of labels in user's field of view, keep the clarity of virtual information and balance the ratio between virtual information and real scene information is a key problem in the field of view management. This paper presents the empirical results extracted from experiment aiming at the user's visual perception to labelling layout, which reflects the subjective preferences to different factors influencing the labelling result. Statistical analysis of the experiment results shows the intuitive visual judgement accomplished by subjects. The quantitative measurement of clutter indicates the change induced by labels on real scene, therefore contributing the label design on view management in future.