Digital Signal Processing Reference
In-Depth Information
3D Mouse Realization in Autostereoscopic Display
Zhentang Jia and Yanfang Han
Shanghai University of Electric Power,
Shanghai, China
462458081@qq.com
Abstract.
Based on the principle of autostereoscopic 3D display , a method was
proposed to generate and show mouse symbol in 3D scene, which can be
applied in any 3D applications. The X,Y coordinates were obtained by mouse
moving, and Z obtained by mouse wheeling. Mouse symbols generated by
virtual cameras from different view positions were multiplexed into the
currently being displayed video contents in realtime, according to the optical
principle of slanted lenticular. Experiment proved the effectiveness of the
method.
Keywords:
3D mouse symbol, Autostereoscopic Display, Image multiplexing.
1
Introduction
The techniques of 3D display have been rapidly developed and widely used in recent
years. In the existing kinds of 3D techniques, the naked eye 3D display which is also
called autostereoscopic display is particularly appreciated, because one can perceive
3D vision without any accessories, such as glasses. Among the autostereoscopic
displays, lenticular display and narrow-aperture display are the most commercially
progressed ones[1].
On such display, most image objects seemed outside of the screen or behind of the
screen surface. If the mouse symbol used to point a object still stays on the surface of
screen, users will feel misplaced, uncomfortable, and even eye fatigue[2].
So, the paper presented a dynamic generation method of three dimension pointing
symbol ,whose position can be adjusted freely in 3D space.
2
Principle of Lenticular 3D Display
Lenticular 3D display is similar to the narrow-aperture one in principle, both of them
are composed of a LCD panel and a front positioned light splitting panel. The
difference is that Lenticular display takes convex lens to split light , while narrow-
aperture display uses parallax barriers[4]. Principle of the lenticular 3D display used
in this paper is illustrated in figure 1.
Several sub-images are multiplexed into the lenticular display in special order[5],
so that, for example, pixels of sub-image1 can only be seen by left eye, that of
