The study for the 3 dimensional measurement by time difference ultra resolution image and for the application to 3 dimensional diagnosis by endoscope.

如今，内窥镜不仅被用于诊断，还被用于治疗。尤其是早期胃癌，既可以采用内窥镜下黏膜切除术(EMR)，也可以采用内窥镜下黏膜下剥离术(ESD)。因此，粘膜组织深度方向的病理信息是重要的。为了对粘膜组织的深度方向进行精确的内窥镜诊断，可使用超声内窥镜。未来将使用光学相干层析成像(OCT)和共焦内窥镜。然而，图像传感器的发展非常迅速，它可以在一定程度上用传统的内窥镜测量粘膜的深度。我们研究了用常规内窥镜进行三维测量的可能性，但如果用常规内窥镜可以拍摄到高质量的图像，则可以进行胃粘膜表面的三维测量。就三维测量的准确性而言，黏膜组织诊断支持系统的改进并不可望。我们认为，通过立体匹配的方法来实现导航系统是可能的。

In these days, an endoscope is applied to therapy as well as a diagnosis. Especially, the early gastric cancer can be treated by either Endoscopic Mucosa Resection (EMR) or Endoscopic Submucosal Dissection (ESD). So a pathological information of a depth direction of mucosal tissue is important. For a precise endoscopic diagnosis of a depth direction of mucosal tissue is used by ultrasound endoscope. And Optical Coherence Tomography (OCT) and confocal endoscope will be used in the future. However the development of an image sensor is very fast, it could measure the depths of mucosa with a conventional endoscope to some extent. We studied about the probability of three dimensional measurement with a conventional endoscope.However, a three dimensional measurement of gastric mucosa surface can be done, if a highly quality image can be taken by a conventional endoscope. As far as accuracy of 3 dimensional measurement, it is not expected that the improvement of support system for the mucosa tissue diagnosis. We think that it is possible to be a navigation system by the stereo matching method.