3D Reconstruction System Of Glomerular

With the continuous development of computer technology and digital image processing technology, medical image diagnosis plays a more and more role in modern medical treatment. Modern medicine has become increasingly inseparable from the information provided by medical image, which makes a difference in clinic diagnosis as well as in teaching and scientific research. Currently, it becomes an indispensable method to improve the early diagnosis and diagnose diseases accurately.In this essay, in view of two-dimensional glomerulus extraction and three-dimensional model establishment display in the sliced image of kidney tissue, an assistant system is designed which is able to carry on automatic two-dimensional extraction and three-dimensional re-establishment. At first, a clear two-dimensional sliced image is got by reading the original medical image and wiping off noise, balancing the brightness with preterit. Secondly, through a way of area increase based on boundary information, two-dimensional extraction is made on the established set data. Finally, all the matched glomerular will be collected to establish a volume data set, carrying on visualized imaging.Therein, while carrying on extraction on the two-dimensional images, in this thesis, the active outline model is used to extract main glomerulus borderline in a sliced image. Then, carry on regional growth base the borderline in a small area. At last, the true close borderline of the glomerulus is attained.And then, based on glomerular boundary extracted, project on adjacent image, do again the GVF borderline extraction and the regional growth, finally all two-dimensional glomerular areas are extracted. In this process the extracted glomerular boundary will be the initialization borderline for the next extraction so as to reduce the accumulating error. In three-dimensional visualized process, in light of attribute of three-dimensional data and ray tracing principle, direct volume rendering is carried out. And with extracted glomerulus, surface rendering is carried on. As a result of this, exterior feature of glomerulus of kidney is realized.It can be seen from the experiment that the way put forward in this essay is of great significance for sliced image of medical kidney, two-dimensional extraction and three-dimensional re-establishment. Accordingly, it can be used as pre-experimental software of medical assistant diagnosis software, meeting the basic requirement.