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Research on stereoscopic display of color moving images using depth-sampling and multiplexing system using optical control devices

利用光控器件的深度采样和复用系统进行彩色运动图像立体显示的研究

基本信息

批准号：
17560315
负责人：
AIDA Tahito
金额：
$ 2.24万
依托单位：
Osaka City University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560315/
关键词：
Stereoscopic display Optical control Optical device Axi-Vision Depth image Integral Photography Organic photoresist MEMS

项目摘要

Stereoscopic display of color images had demonstrated using Axi-Vision image data, a set of color image and depth image, using a depth-sampling and multiplexing system consisting of a moving mirror, a liquid crystal display and a white light LED illumination. However, insufficient stroke and slow response of the moving mirror resulted in an inadequate three-dimensional (3D) appearance of the reproduce images. Based on these experimental results, we got to work on stereoscopic display systems using versatile 3Ddata and optical control devices for the systems.We successfully acquired versatile 3D image data defined in the world (or camera) coordinate system from Axi-Vision image data, where the world (or camera) coordinates were calculated from the image coordinates on the CCD based on the perspective projection theory. A stereoscopic video image display was demonstrated using the versatile 3D image data using an integral photography (IP) system, which combined a 4-inch VGA liquid crysta … More l color display panel and a pinhole array. Aliasing, an issue from mismatch of image qualities between the 3D image data and the IP system, was effectively suppressed by pre-processing the color Axi-Vision image data using a two-dimensional lowpass filter, which was designed based on analyses of the maximum spatial frequency of the 3D image transformed appropriate for the LCD size and the Nyquist spatial frequency of the IP system. We made presentation of these results at the SPIE and IS＆T Symposium Electronic Imaging 2007, held at San Jose, USA, Jan. 2007, and published the paper in the proceeding. We are preparing a manuscript for a journal paper.As for optical control devices, we have got work on polymer MEMS (Micro Electro-Mechanical Systems) using SU-8 photoresist. A binary optic micro fresnel lens array was made using conventional photolithography process and the power of converging parallel laser beam and imaging white light LED was confirmed. An electro-statically actuated grating light valve (GLV) using US-8 was designed. The GLV had a mid gap structure for the moving part. The fabrication process was successfully completed to confirm the function of optical modulation. We are preparing a manuscript to submit a paper to Electronics Letters. Less

利用axis vision图像数据、一组彩色图像和深度图像，采用由移动镜、液晶显示器和白光LED照明组成的深度采样和复用系统，演示了彩色图像的立体显示。然而，运动镜的行程不足和响应缓慢导致再现图像的三维（3D）外观不足。基于这些实验结果，我们开始研究使用多功能3d数据和光学控制设备的立体显示系统。我们成功地从axis - vision图像数据中获得了定义在世界（或相机）坐标系中的通用三维图像数据，其中世界（或相机）坐标是基于透视投影理论从CCD上的图像坐标计算得到的。采用集成摄影（IP）系统，结合4英寸VGA液晶显示屏和针孔阵列，实现了立体视频图像显示。利用二维低通滤波器对彩色轴视图像数据进行预处理，有效地抑制了三维图像数据与IP系统图像质量不匹配导致的混叠问题。该低通滤波器是在分析适合LCD尺寸的三维图像变换的最大空间频率和IP系统的奈奎斯特空间频率的基础上设计的。我们在2007年1月于美国圣何塞举行的SPIE和IS&T电子成像研讨会2007上发表了这些结果，并发表在学报上。我们正在准备一篇期刊论文的手稿。在光学控制器件方面，我们已经开始使用SU-8光刻胶进行聚合物微机电系统（MEMS）的研究。采用传统光刻工艺制作了二元光学微菲涅耳透镜阵列，并确定了平行激光束与成像白光LED的会聚功率。设计了US-8型静电驱动光栅光阀（GLV）。GLV的运动部分采用中间间隙结构。成功地完成了制作过程，确认了光调制的功能。我们正在准备向《电子通讯》提交一篇论文的手稿。少