A Low-Latency, High-Precision Handheld Perspective Corrected Display
A Low-Latency, High-Precision Handheld Perspective Corrected Display
复制标题
低延迟、高精度手持式透视校正显示器
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Thibault Louis
中科院分区：
文献类型：
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作者：
F. Bérard;Thibault Louis
透视校正显示（PCD）显示从实时更新的观看者的位置计算的3D场景的透视投影。通过在显示器前移动头部，用户可以感知到运动视差效应，这是一种强烈的深度感知提示[6]。“鱼缸虚拟现实”系统是涉及固定平面显示器的PCD的公知实例化，并且立体渲染被添加到运动视差深度提示[5]。最近，PCD已经被布置成形成小体积，例如立方体（即gCu-bik [2]和pCubee [4]）。这给出了场景包含在显示器内的错觉。由于显示器的尺寸很小，用户可以在手中旋转它们，因此HPCD中的手持设备。这产生了将虚拟场景握在手中的强烈错觉。此外，在手中旋转显示器比在显示器前移动整个身体需要更少的努力。因此，HPCD允许用户体验比PCD更多的运动视差。然而，立方体HPCD的两个先前实现需要在显示器上存在复杂的电子器件。因此，它们用粗线连接到渲染计算机。这将防止在所有面上显示，因为其中一个面用于连接。此外，立方体侧面的很大一部分被显示器的边框遮挡。
Perspective Corrected Displays (PCDs) show the perspective projection of a 3D scene computed from the viewer's position that is updated in real-time. By moving their head in front of the display, users perceive the motion parallax effect, a strong depth perception cue [6]. “fish-tank virtual reality” systems are well-known instantiation of PCDs involving a fixed planar display and stereo rendering is added to the motion parallax depth cue [5]. More recently, PCDs have been arranged to form small volumes such as a cube (i.e. gCu-bik [2] and pCubee [4]). This gives the illusion that the scene is contained inside the display. Because of the small size of the displays, users can rotate them in their hands, hence the Handheld in HPCD. This creates the strong illusion of holding the virtual scene in one's hands. In addition, rotating the display in hands requires much less effort than moving the whole body in front of the display. Hence, HPCDs allow users to experience more motion parallax than PCDs. However, the two previous implementations of cubic HPCDs required the presence of complex electronic on the display. As a result, they are connected with a thick wire to a rendering computer. This prevents to display on all faces as one of them is used for the connection. In addition, a significant part of the cube's sides is occluded by the displays' bezels.