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Tooth Clasification on Jaw 3D Polygonal Model
Hulík, Rostislav ; Španěl, Michal (referee) ; Kršek, Přemysl (advisor)
This document discusses a solution for tooth classification on 3D jaw polygonal model. Sequentially, I describe techniques for representation and browsing of polygonal model saved in computer memory, techniques for dental curve detection and finally, creation of surface representing approximated tooth plane. After it, I analyze possibilities of height map creation from jaw model which helps in tooth classification in the scope of entire dental curve context and, as a last step, final detection of these teeth in two dimensions. In the same time, I discuss 3D polygonal model segmentation for border extraction, which separates teeth from the rest of the model. In the end of proposed algorithm, I join these two runs into one final detection and classification process of separate teeth, so presented application can automatically indentify and classify teeth to corresponding names and positions with a minimum user interaction. In a second half of this document, I describe implemented solution. According to primary goal, I propose these techniques forcefully to multiplatform approach and maximal user comfort.
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Tooth Detection on Jaw 3D Computer Polygonal Model
Filip, Jan ; Šiler, Ondřej (referee) ; Kršek, Přemysl (advisor)
Aim of this bachelor thesis is a proposal and an implementation of a tool for the tooth detection on a 3D computer polygonal jaw model, which will allow to a user to obtain the shape of teeth on the jaw. This tool should to help in the stomatology. In the event of any inaccurary in the detection it will be possible to change certain parameters and methods, by which will be possible to influence the accuracy of detection. Program will import models in the STL format and subsequently will allow to the user to see the result of the detection in a browser. Teeth detection models will be possible to export single or together, in the STL format. The implementation language will be C++, compiler GNU C in distribution MinGW, toolkit to work with the 3D model will MDSTk and primarily its part VectorEntity. For imaging of thr 3D scene will be used OpenSceneGraph toolkit. Application will be developed primarily for MS Windows operating system but thanks to using GNU tools should be portable at the level of source codes to anothers operating systems.
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Tooth Detection on Jaw 3D Computer Polygonal Model
Hulík, Rostislav ; Španěl, Michal (referee) ; Kršek, Přemysl (advisor)
This document discusses a concept and implementation of algorithms for teeth detection on 3D polygonal jaw model. At first, I describe possible shape detection techniques on three dimensional computer model, including utilization just in my case. After it, I analyze filtration problems of obtained model segments in order to reliably separate regions of tooth-arch from the rest of jaw. I included all these pieces of knowledge into a final application. Here, it is possible to choose from two user interfaces, first, classic user interface which demonstrates possible utilization in real world and second, testing interface which demonstrates functions of each detection and filtration method used in program and their effect on detection. Application is written in C++ language in development environment of MS Visual Studio 2005 and compiled with MS VS internal compiler. Tested was under MS Windows XP and MS Windows Vista OS.
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