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Development of an Optical Lithography Method by Controlling Displayd Mask Patterns on a Liquid Crystal Panel and Construction of Solid Models of Human Organs with Three-Dimensional Rebuilding Technique from Two-Dimensional Image Data

通过控制液晶面板上显示的掩模图案开发光学光刻方法，并利用二维图像数据的三维重建技术构建人体器官实体模型

基本信息

批准号：
05555091
负责人：
AOKI Yoshinao
金额：
$ 2.43万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

项目摘要

According to the proposed method, experiments on hardening the UV (ultra-violet) hardening resin with UV light from a mercury lamp through a mask made of paper were conducted as preliminary experiments, resulting in hardening simple models. We tried an experiment using liquid-crystal panel instead of the mask to control the UV light. Since the UV light transmitted through the liquid-crystal panel was so weak, experiments were terminated without success. The reason of the failure was because we did experiment with commercially provided liquid-crystal panel which was not constructed for the purpose of our experiment. Specially constructed liquid-crystal panel with high transmission rate of UV light is necessary in developing our method. Another aim of the research is developing a software system of rebuilding 3D (three-dimensional) models of human organs from 2D (two-dimensional) medical image data such as CT images and ultrasonic diagnosing images. We have developed such a software syst … More em, where we can satisfactorily classify the subcutaneous tissue, soft tissue and bone using the technique of enhancement of X-ray CT images and classification method of density-gradient histogram. Rebuilding of 3D human heart model was also done with the ultrasonic diagnosing images, resulting in a good 3D images on computer display. Using the developed software system of rebuilding 3D models, a model of skull was constructed by an optical lithography method using UV laser beam. Suppose that the mask method proposed in this research becomes practical ones in future, we add transmission of medical image data for optical lithography using communications satellite and INTERNET as one of research subjects and a transmission system was constructed and transmissions of medical image data were conducted. The satellite communication was done using a Japanese communications satellite JCSAT and 3D CT images were transmitted, resulting in collecting basic data to achieve systems linked with optical lithography systems and image data acquisition systems. Less

根据所提出的方法，作为初步实验，进行了通过纸制成的掩模用来自汞灯的UV光硬化UV（紫外线）硬化树脂的实验，从而硬化简单的模型。我们尝试了一个实验，使用液晶面板代替掩模来控制紫外线。由于透过液晶面板的紫外线非常微弱，实验没有成功就终止了。失败的原因是因为我们用商业上提供的液晶面板进行了实验，该面板不是为我们的实验目的而构造的。在发展我们的方法时，特别构造的具有高UV光透射率的液晶面板是必要的。本研究的另一个目的是开发一个软件系统，从二维（二维）医学图像数据，如CT图像和超声诊断图像重建人体器官的三维（三维）模型。我们开发了这样一个软件系统， ...更多信息 em，利用X射线CT图像增强技术和密度梯度直方图分类方法，可以对皮下组织、软组织和骨进行满意的分类。利用超声诊断图像重建三维人体心脏模型，在计算机上显示出良好的三维图像。利用所开发的三维模型重建软件系统，采用紫外激光光刻法建立颅骨模型。假设本研究中提出的掩模方法在将来成为实用的掩模方法，我们增加了使用通信卫星和INTERNET的光学光刻的医学图像数据的传输作为研究课题之一，并且构建了传输系统，并进行了医学图像数据的传输。使用日本通信卫星JCSAT进行了卫星通信，并传输了三维CT图像，从而收集了基本数据，以实现与光学光刻系统和图像数据采集系统相连接的系统。少