集装箱起重机模拟器的立体显示及景深

Stereo Display of Container Crane Simulator and Stereo Depth

根据集装箱装卸培训特点,提出对集装箱起重机模拟器采用立体显示恢复出虚拟场景的深度信息,以提高模拟器仿真环境的逼真度。提出一种精确确定立体图像绘制时双视点距离的计算方法,使人眼能舒适地融合物理屏幕上的双眼图像。根据多人观测结果的均值确定物理屏幕人眼深度可融合范围;通过零视差面与固定物理屏幕间的射影变换得出双视点距离设定值。试验结果表明,固定物理屏幕立体显现不可避免地会产生深度方向上的压缩,该方法适于不同尺度的虚拟场景。

According to the characteristics of container handling training,a stereo display mode is used to recover the depth information of virtual scene and improve the fidelity of the simulator environment.In order to fuse stereo images comfortably with the fixed physical screen by human eyes,the parallax of stereo images must be controlled within a certain range.A method for accurately determining distance of two viewpoints in virtual scene is presented.According to the mean results of subjects＇ observation,critical depth of fusion limitation in the physical screen space is determined.According to projective transformation of zero-parallax surface to the physical screen,the distance of two viewpoints is deduced.Test results show that stereo display on the fixed physical screen will inevitably engender compression in the depth direction.The method is suitable for multi-scale virtual scene.