通过摄像机将目标传输到炮手和指挥官的显示器上，并自动追踪目标。
Targets are acquired via either one of the video channels connecting the day camera, or night vision camera to the gunner and commander displays.
卢森堡的SeeReal公司采取了这样的系统：将两个摄像机架在大型3d显示器上面，追踪观众的眼球活动。
To make them larger a company called SeeReal, based in Luxembourg, has built systems that use two eye-tracking cameras above a large 3-d display to follow the viewer's eyes.
为了有效地与显示用户界面互动，使用了相近的衍射光将一个基于视频的凝视追踪系统集成于近眼显示器中。
To be able to efficiently interact with the displayed user interface, we have also integrated a video- based gaze tracker into the NED, using similar diffractive optics.
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