Three-dimensional Image Reconstruction Technology In Neurosurgery Robot System Research

In these years, medical surgery robot has become a research focus in many laboratories all over the world. Medical image data visualization is a crucial technology used in medical surgery robot that makes significant innovation in medical field. Via computer visualization, medical image data such as CT or MRI image can be reconstructed to 3D body. 3D image provides a vivid virtual circumstance in which operator is able to make a precise diagnosis and plan a valid operation path. Thereby researches in medical image reconstruction guarantee medical surgery robot system to be more precise and reliable.In this paper, the major works involved are as follows:At first, this article gives a presentation of medical robot developments and a brief introduction of robot aided stereotactic neurosurgery system and its related crucial technologies.Secondly, Presentations are given of DICOM and some theories relevant to contour extraction in CT images. The performance of extraction affects directly the quality of 3D-reconstruction body. Some implemental algorithms are improved and introduced.Thirdly, this article discusses some theories relevant to image 3D-reconstruction from serial 2D contours in detail. The emphasis is involved in contours tiling?correspondence and branching problems when to construct 3D objects from multiple branching 2D contours.Meanwhile, Presentations are given of image space coordinate to robot real coordinate mapping theory and how to implement this kind coordinates translation.Based on above some theories and algorithms, a experimental system is designed by Visual++ and OpenGL. The system includes two modules: path planning module and aided operation module.