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Multi-view 3D display using one-dimensional scanning and light source array

使用一维扫描和光源阵列的多视图3D显示

基本信息

批准号：
13555106
负责人：
TAKAKI Yasuhiro
金额：
$ 8.64万
依托单位：
Tokyo University of Agriculture and Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

项目摘要

We constructed a new 3D display which employs one-dimensional beam scanning and light source array. The human responses to the 3D display were also measured.The accuracy of beam scanning by galvano-meter was examined. The experimental results showed that the conventional galvalo-scanner had the beam scanning accuracy of 50 μm at the scanning frequency of 60 Hz, and that the resonance scanner had that of 30μm at the scanning frequency of 200 Hz. Consequently, over 50 images can be displayed simultaneously by use of the resonance scanner.The modulation characteristics of light sources were also measured. The results showed that both LED and LD could modulate beams with the sufficient frequency of over 20 MHz. We succeeded to modulate the light sources synchronizing to the beam scanning.We designed a new 3D display system using the above basic experimental results. Sixty-four color LCD panels were aligned two-dimensionally and their images were displayed into different horizontal directions.For the generation of 3D images, 64 video signals are required. Sixty-four frame memories were used and were controlled by eight PC's. This PC cluster was controlled by a host computer via a gigabit Ethernet. Sixty-four images displayed on the LCD's were rendered by use of CG software.Three-dimensional images were successfully generated by the combination of the 3D display and the PC cluster. The measurements of human responses are very important for the research of 3D displays because the conventional 3D displays are known to have the problem of the fatigue during the observation. The accommodation responses to the 3D images generated by our system were measured by use of the 〓fract-meter. The results showed that the responses to the 3D images were quite similar to those to real 3D objects.

我们构建了一种采用一维光束扫描和光源阵列的新型三维显示器。人类对3D显示器的反应也被测量。对振镜扫描光束的精度进行了检验。实验结果表明，在扫描频率为60 Hz时，传统电振扫描仪的波束扫描精度为50 μm；在扫描频率为200 Hz时，共振扫描仪的波束扫描精度为30μm。因此，通过使用磁共振扫描仪可以同时显示50多个图像。测量了光源的调制特性。结果表明，LED和LD都可以调制足够频率在20mhz以上的光束。我们成功地调制了与光束扫描同步的光源。利用上述基本实验结果，设计了一种新的三维显示系统。将64块彩色液晶面板进行二维排列，并在不同的水平方向上显示图像。生成三维图像需要64个视频信号。使用64帧存储器，由8台PC机控制。这个PC集群由一台主机通过千兆以太网控制。在液晶显示器上显示的64幅图像使用CG软件进行渲染。将三维显示器与PC集群相结合，成功生成了三维图像。由于传统的三维显示器在观察过程中存在疲劳问题，因此人体反应的测量对三维显示器的研究非常重要。我们的系统产生的三维图像的调节响应使用〓分形计测量。结果表明，对三维图像的反应与对真实三维物体的反应非常相似。