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首页> 外文会议>Stereoscopic Displays and Virtual Reality Systems XIV; Proceedings of SPIE-The International Society for Optical Engineering; vol.6490; Electronic Imaging Science and Technology >Evolution of the Varrier~TM Autostereoscopic VR Display: 2001-2007
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Evolution of the Varrier~TM Autostereoscopic VR Display: 2001-2007

机译：Varrier〜TM自动立体VR显示器的发展：2001-2007

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Autostereoscopy (AS) is an increasingly valuable virtual reality (VR) display technology; indeed, the IS&T / SPIE Electronic Imaging Conference has seen rapid growth in the number and scope of AS papers in recent years. The first Varrier paper appeared at SPIE in 2001, and much has changed since then. What began as a single-panel prototype has grown to a full scale VR autostereo display system, with a variety of form factors, features, and options. Varrier is a barrier strip AS display system that qualifies as a true VR display, offering a head-tracked ortho-stereo first person interactive VR experience without the need for glasses or other gear to be worn by the user. Since Varrier's inception, new algorithmic and systemic developments have produced performance and quality improvements. Visual acuity has increased by a factor of 1.4X with new fine-resolution barrier strip linescreens and computational algorithms that support variable sub-pixel resolutions. Performance has improved by a factor of 3X using a new GPU shader-based sub-pixel algorithm that accomplishes in one pass what previously required three passes. The Varrier modulation algorithm that began as a computationally expensive task is now no more costly than conventional stereoscopic rendering. Interactive rendering rates of 60 Hz are now possible in Varrier for complex scene geometry on the order of 100K vertices, and performance is GPU bound, hence it is expected to continue improving with graphics card enhancements. Head tracking is accomplished with a neural network camera-based tracking system developed at EVL for Varrier. Multiple cameras capture subjects at 120 Hz and the neural network recognizes known faces from a database and tracks them in 3D space. New faces are trained and added to the database in a matter of minutes, and accuracy is comparable to commercially available tracking systems. Varrier supports a variety of VR applications, including visualization of polygonal, ray traced, and volume rendered data. Both AS movie playback of pre-rendered stereo frames and interactive manipulation of 3D models are supported. Local as well as distributed computation is employed in various applications. Long-distance collaboration has been demonstrated with AS teleconferencing in Varrier. A variety of application domains such as art, medicine, and science have been exhibited, and Varrier exists in a variety of form factors from large tiled installations to smaller desktop forms to fit a variety of space and budget constraints. Newest developments include the use of a dynamic parallax barrier that affords features that were inconceivable with a static barrier.
机译：自动立体镜（AS）是一种越来越有价值的虚拟现实（VR）显示技术。实际上，近年来，在IS＆T / SPIE电子成像会议上，AS论文的数量和范围迅速增长。第一本Varrier论文于2001年在SPIE上发表，此后发生了许多变化。从单面板原型开始，已经发展到具有各种尺寸，功能和选项的全尺寸VR自动立体显示系统。 Varrier是一种可以作为真正的VR显示器使用的屏障式AS显示系统，无需用户佩戴眼镜或其他装备，即可提供头部追踪的正立体声第一人称交互式VR体验。自Varrier成立以来，新的算法和系统开发已提高了性能和质量。借助新的精细分辨率的隔离带线屏和支持可变子像素分辨率的计算算法，视力提高了1.4倍。使用新的基于GPU着色器的子像素算法，性能可以提高3倍，而以前需要三遍就可以完成一遍。最初以计算量大的任务开始的Varrier调制算法现在不比传统的立体渲染昂贵。对于复杂场景几何体，Varrier中的交互式渲染速率现在可以达到60 Hz，数量级为10万个顶点，并且性能受GPU限制，因此，随着图形卡的增强，有望继续改进。头部跟踪是通过EVL为Varrier开发的基于神经网络摄像机的跟踪系统完成的。多个摄像机以120 Hz的频率捕获对象，并且神经网络从数据库中识别出已知的面部并在3D空间中对其进行跟踪。只需几分钟，就可以训练新面孔并将其添加到数据库中，其准确性可与市售跟踪系统相媲美。 Varrier支持各种VR应用程序，包括可视化多边形，光线跟踪和体绘制的数据。支持预渲染的立体帧的AS电影回放和3D模型的交互式操纵。在各种应用中采用本地以及分布式计算。 Varrier中的AS电话会议已证明了远程协作。已经展示了各种应用领域，例如艺术，医学和科学，并且Varrier以各种尺寸形式存在，从大型平铺设备到较小的桌面形式，以适应各种空间和预算限制。最新的发展包括使用动态视差屏障，该屏障提供了静态屏障无法想象的功能。

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