The Theory Research Of X-Ray Photographing Reconstruct Volumetric Image And Volume Visualization

Computed Tomography is an important physical image scanning apparatus. In current days, CT has being becomes indispensable parts in radiology diagnosis fields and becomes maturated and indispensable inspect means in clinic. But, any technology always has itself disadvantage and need ameliorate place.CT makes use of X-ray to reconstruct image. X-ray photographing can get a flat image about scanned object. At present, the scanning methods of CT utilizes rigid machine slip ring to meet Radon transform that cause no way to fix on each X-ray pass through those object voxel. So using filtration system shield a majority of X-ray. That a scanning only get one or several fault scanning data, thereby CT can but to reconstruct one or several fault images. And then make using of mult-fault image to reconstruct volume image. The machine simulative scanning methods right smart restrict its scanning velocity, CT technology development mainly focus on how to heighten its scanning velocity and efficiency, for the sake of it adopt two means: increasing detector number and alter scanning means. Those means increase the difficultly of machine manufacturing moreover no attaining expected result.The paper obtains enlighten from CT application's two technological principles and adopts Remote Sensing orientation theory to present the other one CT scanning theory-X-Ray Photographing Reconstruct Volumetric Image(CV). CV using photographing method put multi-marked points on photographed object.and depending on marked-points coordinate and its image coordinator's transform relation. It can fix on X-ray path including all X-ray in X-image immediately. So the reconstructed image is three-dimensional volume image about scanned object. CV theory change orientation method about CT sanning image. Furthermore it comes true can debase the making difficulty of CT, heighten reconstruct image resolution and scanning velocity etc.Commonly, CV theory has altered the other one mutuality science research fields' mehtods and contents about physical image volume visualization. Volume visualization based on fault image needs proofread and insert value fault image to display object's three-dimensional structure by various volume visualization methods. And that volume visualization based on CV theory no needs the above manipulations and maximum reduce means and approaches. For more detailed account for volume visualization method's distinguish based on the above two theory. This paper builded a frame of volume visualization adopting OpenGL API in MFC. And then realizing a volume visualization based on CV theory by virtual reality. Including realizing two vaious volume visualization display means surface based rendering and voxel based redering.This paper is an academic article, all knowledge focus on X-ray photographing reconstruct volumetric image. After syncretizing, comparing and demonstrating all viewpoints, as a result, that CV will become true, it is a new innovation for currently CT technology. But the theory feaibility is yet must more practicing and testing.