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

使用AXI-Vision图像数据，一组彩色图像和深度图像，使用由运动镜、液晶显示器和白光LED照明组成的深度采样和多路复用系统，演示了彩色图像的立体显示。然而，移动镜子的行程不足和响应缓慢导致再现图像的三维(3D)外观不佳。在这些实验结果的基础上，我们开始了使用多功能3D数据和光学控制设备的立体显示系统的工作。我们成功地从AXI-Vision图像数据中获取了定义在世界(或相机)坐标系中的通用3D图像数据，其中世界(或相机)坐标是根据透视投影理论从CCD上的图像坐标计算出来的。使用集成摄影(IP)系统使用多功能3D图像数据演示了立体视频图像显示，该系统结合了4英寸VGA液晶…更多的是L彩色显示屏和针孔阵列。通过使用二维低通滤波器对彩色AXI-Vision图像数据进行预处理，有效地抑制了由于3D图像数据与IP系统之间的图像质量不匹配造成的混叠问题。该二维低通滤波器是基于对适合于LCD尺寸的3D图像的最大空间频率和IP系统的奈奎斯特空间频率的分析而设计的。我们在2007年1月在美国圣何塞举行的SPIE和IS&T研讨会电子成像2007上展示了这些结果，并在会议记录中发表了论文。我们正在为一篇期刊论文准备稿件。至于光学控制设备，我们已经完成了使用SU-8光刻胶的聚合物MEMS(微型电子机械系统)的工作。采用常规光刻工艺制作了二元光学微菲涅耳透镜阵列，确定了平行光束会聚和白光LED成像的功率。采用US-8设计了一种静电驱动的光栅式光阀。GLV的运动部分具有中间间隙结构。制作过程顺利完成，证实了光调制的功能。我们正在准备一份稿件，准备向《电子快报》提交论文。较少

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