Study on 3D displaying for volume data using holographic 3D display

全息3D显示体数据3D显示研究

• 批准号: 15300025
• 负责人: SAKAMOTO Yuji
• 金额: $ 10.69万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15300025/
• 关键词: Computer-generated hologram; 3D Display; Medical imaging; Volume data; 3D images; Fringe printer; Image processing and compression

1.ObjectivesPurpose of this study is to develop holographic 3D display system for volume data using a computer-generated hologram technique and to evaluate the 3D images.2.Results of research(1)We succeeded in displaying a three-dimensional image by a hologram of volume data and were able to realize a large-sized hologram in comparison with before. New knowledge was provided through this development technically. In addition, I clarified the effectiveness of the method by the large-size holograms that are able to see by naked eyes. However, on the other hand, the problems such as quantization and calculation algorithm, which we must study in future, became clear newly. The results of research were able to become a touchstone for practical use.(2)We have developed a total 3D displaying system for medical images : (i)volume data are scanned at Tokyo Metropolitan Univ., (ii)transmitted to Hokkaido Univ. though the internet, (iii)calculated for hologram data, (iv)transmitted to Kanasai Univ., and (v)printed on photo plates.(3)In addition, in the field of each study, we were able to achieve the following results :(i)New rendering algorithms for computer-generated hologram that are useful for realistic imaging,(ii)New segmentation methods for organs and image processing methods,(iii)A new fringe printer that is large size and high resolution,(iv)New 3D image compression metods.

1.目的本研究的目的是利用计算机生成的全息图技术开发体数据的全息3D显示系统并评估3D图像。2.研究结果(1)我们成功地通过全息图显示3D图像体数据，与以前相比能够实现大尺寸的全息图。通过技术上的发展提供了新的知识。此外，我还通过肉眼可见的大尺寸全息图阐明了该方法的有效性。但另一方面，未来必须研究的量化、计算算法等问题也重新清晰起来。研究结果能够成为实际应用的试金石。(2)我们开发了一套完整的医学图像3D显示系统：(i)在东京都立大学扫描体积数据，(ii)传输到北海道大学。通过互联网，(iii)计算全息图数据，(iv)传输到金西大学，(v)打印在照片板上。(3)此外，在每个研究领域，我们能够实现以下目标结果：（i）可用于逼真成像的计算机生成全息图的新渲染算法，（ii）器官和图像处理方法的新分割方法，（iii）大尺寸和高分辨率的新型条纹打印机，（iv） ）新的3D 图像压缩方法。

项目成果

Calculation method of computer generation hologram considering refraction

考虑折射的计算机生成全息图计算方法

• 发表时间: 2005
• 作者: Yoshiaki KANAZAWA; Yuji SAKAMOTO; Yoshinao AOKI
• 通讯作者: Yoshinao AOKI

フリンジプリンタにより作成したディスプレイ用CGH

条纹打印机制作的显示器 CGH

• 发表时间: 2004
• 作者: 栗林佑宇真; 宮内宏之; 山中俊介; 松島恭治
• 通讯作者: 松島恭治

A new High-Resolution Printer for Fabricating Digitally Synthetic Holograms

用于制作数字合成全息图的新型高分辨率打印机

• 发表时间: 2004
• 作者: Syunsuke Yamanaka; Yuma Kuribayashi; Yoshihisa Yamane; Hiroyuki Miyauchi; Kyoji Matsushima
• 通讯作者: Kyoji Matsushima

A Rigorous Method for Hidden-Surface Removal in Display CGHs

显示器 CGH 中隐藏表面去除的严格方法

• 发表时间: 2004
• 作者: Kyoji Matsushima

江面和哉, 坂本雄児, 青木由直: "物体面における反射・透過及び影を考慮した計算機合成ホログラムの生成法"第2回 情報科学技術フォーラム 講演論文集. 3. 389-390 (2003)

Kazuya Ezura、Yuji Sakamoto、Yunao Aoki：“考虑物体表面反射/透射和阴影的计算机生成全息图的生成方法”第二届信息科学技术论坛论文集 3. 389-390 (2003)。