Research On The Key Technique Of Organ Modeling

The development of computer visualization technology provides us an accurate, intuitionistic, and efficient way for medical analyzing. Such as the three-dimensional modeling of organ based on medical image has be one most important aspect, and it has become a key part of surgical, medical researching and teaching, telemedicine and so on.Aiming at the task of the organ modeling, this thesis focuses on the techniques of organ contour-detecting, segmentation and modeling based on medical image. The research work can be summarized in following aspects:1. The technology of obtaining and pre-processing medical images is researched, including the DICOM standards, image enhancement and geometric correction of medical images, and also present the method of medical images obtaining and optimizing.2. The edge-detection of medical image base on grads and second derivative is expatiated, especially, some work on edge extraction using improved active contour models also has been done.3. Some techniques for organ segmentation, such as grayscale threshold, texture and especially the new way of image segmentation based on deformable templates, are presented in detail.4. Two primary ways designed for three-dimensional modeling, which is based on contours triangularization or iso-surfaces extraction, are presented in this thesis.5. According to these arithmetic and theory presented in this thesis, a system for processing medical data, which named Medical Image System, is designed and implemented. The main functions and result analysis of the system are highly detailed and discussed in this thesis.The three-dimensional modeling of organ based on medical image is the hotspot of medical research. It not only has theoretic significance but also represents great importance in clinical diagnostic and treatment. And it also will cause (or has caused) a revolution in the modernization of medical treatment.