| Intraocular foreign bodies (IOFBs) is a common ocular trauma. The occurrence rate is very high,the danger to eyesight is serious. Because the foreign body stay lasting influence to the eyeball,in principle all foreign bodies inside the eye need to diagnose early and remove in good time,while attempting to preserve vision and restore ocular architecture. The accurate localization is the important assurance that the foreign body can be remove,preserve vision after an operation. The localization is more accurate,the damage of the eyeball in operation is probably more small and the vision after operation is probably more good. CT scans is better method that shows the foreign body. After acquiring the tomography slices,carrying on the three-dimension reconstruction can offer very intuitionistic image data for clinic,help to design the operation scheme clinically in time,carry on the surgical operation accurately. 3D reconstruction for medical images is a hot subject of medical images processing, belonging to multi-disciplinary subject,involved in computer graphics and image processing in biomedicine engineering. This text uses CT's fault scanning to be built the three-dimension model of eyeball. The difference of the CT's machine that owing to internal the various big hospital used,and the confidentiality of the data format of CT,and this is studied using film scan method to procure CT's fault image the incomplete export merit ability to prepare the image outline data. The edge detection by man-made recognition with recognizing two kinds of methods voluntarily. This text is developed man-madely interactive with recognizing the edge detection method voluntarily is dead against the different faults edges. SolidWorks software is based on the CAD/CAE's /CAM/PDM's top of a table integrated system of Windows completely,and with his complete parameterization substance model building merit ability based on the characteristic,getting the extensive use machinery in the design,the application in the finite element model building of medical use living things mechanics is inquired into in this text. The modularization substance model building of living things structures. Using the cross section portrait of CT's scanning living things structures,and draws the marginal coordinate of outline,then the outline edge point is drawn up and for the closed contour,carries on three dimensions substances rebuilding. 1 ) the basic principle of seat firstly to choose CT's fault scanning should be: Not to lose,and does not distort the shape form structure size information of living things structures,and the section number used is reduced to the full, and will pay attention to sampling arrives footstep,sharp and part top,part key seats such as bottom,maximum diameter place and minimal diameter place etc as well as some transition seats. 2 ) wide edge coordinate carry on the coordinate of key edge,and exists side by side for the file. 3 ) using the splice curve to draw up among the marginal data of the outline drawn up and will bring into being of contour read in SolidWorks,will each level number according to the read in,the wire frame picture of formation model. 4) The formation of physical model uses the characteristic modeling to become the physical model next life. The angle of from characteristic aspect is seen,and the characteristic that SolidWorks2001 can constitute has the drawing...
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