Oral Cavity Survey Data 3-D Visualization Engineering Research

In recent years, along with many kinks of technical progress, such as graph picture processing, three-dimensional visible technology of oral cavity survey data has become important research direction and the research hot spot of stomotology computer application. The main research content of this technic is to transform the digitized information to the visible graph, and construct three-dimensional occlusion model. This will help dentist to observe the morphology of dental with computer, and realize the pre-platoon, the conformable display, its alternately survey operation and so on.In order to reconstruct three-dimensional occlusion model, the first step was three-dimensional artificial acquisition, then the data processed. Hole patching was an important question in three-dimensional data processing. In this study, it was analyzed how the hole formed and the hole patching method can be used. Considering the morphology of dental surface was complex and the hole was tiny, four useful hole patching method was proposed. These methods has been compared and analyzed systematically. After the data was gathered, the three dimensional view was reconstructed. The curved surface structure on the basis of triangle and quadrangle, the transformation and the demonstration which gathered to the three-dimensional coordinates have been researched. Further more, the three-dimensional spot cloud data highly effective heavy construction algorithm have been explored. In this research the occlusion model cloud data and the tabletop computer environment has been used which this topic development the low bind spot occlusion model laser three dimensional scanner gains have realized to the three-dimensional artificial occlusion model highly effective heavy construction and the faster demonstration.We have finally studied the occlusion model data separation, the both eyes three-dimensional imagery and three dimensional alternately surveys'technology, and have realized the tooth and gum boundary separation, through which we could clearly identify the tooth boundary. This will help to make computer stimulation which moves to the realization three-dimensional tooth. On the basis of brief analysis to both eyes three-dimensional principle, we made up flushes the color law to stimulate the person eye observation, has realized the occlusion model three-dimensional foundation in production and the demonstration, and has facilitated dentist to carry on the model observation. We have proposed and realized one kind alternately to survey technology based on the false three-dimensional display occlusion model, thus have realized the man-machine alternately surveys on geometry parameter and the coordinate figure, distance, angle, area, volume and so on.