Retinal projection type super multi-view stereoscopic head-mounted display
Retinal projection type super multi-view stereoscopic head-mounted display
复制标题
视网膜投影式超多视角立体头戴显示器
DOI：
10.1117/12.2608438
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Hideya Takahashi
中科院分区：
文献类型：
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作者：
Kazuya Fujikawa;Kayo Yoshimoto;Hideya Takahashi
我们先前已经提出了视网膜投影型超级多视图头戴式显示器（HMD），其为观察者提供自然的3D图像。这种先前的HMD通过使用3D显示技术中的超级多视图来诱导人眼的调节，并且观察者可以观看3D图像。然而，存在调节的3D图像的深度范围被限制在大约2米的问题。为了克服这个问题，我们提出了双目立体HMD配对先前提出的HMD。对HMD进行配对，激活了3D视觉的因素之一的会聚，并且可以扩展深度范围。该头戴式显示器由全息光学元件和数字微镜组成，数字微镜用作高速显示器件和光闸。通过同步光学快门和显示设备并通过时间复用将不同的视差图像投影到视网膜上来诱导调节。由于图像被投射到每只眼睛的视网膜的不同位置上，因此也引起眼睛的会聚。为了验证所提出的HMD扩展深度范围，我们在光学工作台上制作了原型3D-HMD。作为使用原型系统的实验结果，我们证实，所提出的头戴式显示器可以扩大深度范围。由于所提出的头戴式显示器比以前的头戴式显示器使用更多的3D视觉因素，观察者可以看到更远的3D图像。此外，该头盔显示器还解决了双目立体头盔显示器的视差-收敛冲突问题。
We have previously proposed the retinal projection type super multi-view head-mounted display (HMD) which provides natural 3D images for the observer. This previous HMD induces the accommodation of the human eye by using the super multi-view in 3D display technology and the observer can view 3D images. However, there is a problem that the depth range of 3D images by the accommodation is limited to about 2 meters. To overcome this problem, we propose the binocular stereoscopic HMD pairing the previously proposed HMDs. To pairing HMDs, the convergence, one of the factors of 3D vision, is activated and the depth range can be expanded. The proposed HMD consists of holographic optical elements and DMDs using as high-speed display devises and optical shutters. The accommodation is induced by synchronizing the optical shutter and the display device and projecting different parallax images onto the retina by time multiplexing. The convergence of the eye is also induced because the images are projected onto a different position of the retina of each eye. In order to verify expanding the depth range with the proposed HMD, we made a prototype 3D-HMD on an optical bench. As a result of experiments using the prototype system, we confirmed that the proposed HMD can expand the depth range. Since the proposed HMD uses more factors of 3D vision than the previous HMD, the observer can view more distant 3D image. In addition, the accommodation-convergence conflict, the problem of binocular stereoscopic HMD, is solved with the proposed HMD.