光栅式自由立体显示器空间视区建模与串扰计算

Modeling and crosstalk calculation methods of spatial viewing zones for the autostereoscopic display device based on parallax barrier or lenticular lens

为了实现光栅式自由立体显示器的空间视区建模与串扰的理论计算,提出一种基于光学仿真软件Lighttools的空间视区模型建立与串扰计算方法。首先,在Lighttools中,以设计最佳观看位置(OVD)为轴心,建立3个空间平面探测器。然后,对探测平面上的照度仿真数据进行特征分析,得到空间视区的简化模型;分析简化模型与原始模型的空间线性和空间角度关系,得到空间视区在三维空间的几何分布。最后,依据视区模型的理论边界,计算各个视区范围内的串扰度。从而完成了视区与串扰两个参数的规范化与数字化,为自由立体显示器的设计和使用提供明确的理论指导。

In order to establish the modeling of spatial viewing zones and implement theoretical calcu- lation of crosstalk for the Autostereoscopic Display Device, this paper proposes the modeling of spatial viewing zones and crosstalk calculation method that are based on a optical simulation software named Lighttools. First of all, in the Lighttools, three spatial plane detectors have been established by re garding the original viewing distance（OVD） as the centrolaxis. In addition, the simplified modeling of spatial viewing zones is established by analyzing the stimulation data of detector planes. Furthermore, this paper analyzes the spatial linearity relation and angle relations between simplified modeling and original modeling so that a geometric distribution of spatial viewing zones in three dimensions is achieved. Finally, according to the theoretical boundaries of spatial viewing zones model, the crosstalk degrees of each visual area are evaluated. The standardization and digitization of the two vital parame- ters, which are spatial viewing zones and crosstalk specifically, provide an objectively theoretical guid- ance to the design and application of the Autostereoscopic Display Device.