General Dynamic Surface Reconstruction: Application to the 3D Segmentation of the Left Ventricle

Autor: GARCÍA PAÑELLA OSCAR
Año: 2003
Universidad: RAMON LLULL
Centro de realización: E.T.S. D'ENGINYERIA ELECTRÓNICA I INFORMÁTICA
Centro de lectura: E.T.S. D'ENGINYERIA ELECTRÓNICA I INFORMÁTICA
Director: SUSÍN SÁNCHEZ ANTONIO
Tribunal: MARTÍNEZ MARROQUÍN ELISA , GINESTA LÓPEZ XAVIER , NAVAZO ÁLVARO ISABEL , RADEVA PETIA , VILASÍS CARDONA XAVIER
Resumen de la tesis

This thesis describes a contribution to the three-dimensional reconstruction of the internal and external surfaces of the human's left ventricle. The reconstruction is a first process fitting in a complete VR application that Hill serve as an important diagnosis tool for hospitals. Beginning with the surfaces reconstruction, the application will provide volume and interactive real-time manipulation to the model. We focus on speed, precision and smoothness for the final surfaces. As long as heart diseases diagnosis requires experience, time and professional knowledge, simulation is a key-process that enlarges efficiency. The algorithm and implementations have been applied to both synthetic and real datasets with differences regarding missing data, present in cases where pathologies and abnormalities arise. The datasets include single acquisitions and complete cardiac cycles. The goodness of the reconstructions has been evaluated with medical parameters in order to compare our results with thos retrieved by typical software used by physicians. Besides the direct application to medicine diagnosis, our methodology is suitable for generic reconstruction in the field of computer graphics. Our reconstructions can serve for getting ·D models at low cost, in terms of manual interaction and CPU computation overhead. Furthermore, our method is a robust tessellation algorithm that builds surfaces from clouds of points that can be retrieved from laser scanners or magnetic sensors, among other available hardware. The author is granted by an EPSON "Rosina Ribalta" award. This work has been also financed by the TIC2000-1009 project.
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