Reconstrucción virtual tridimensional de entornos urbanos complejos

A. García-Moreno, J. González-Barbosa


Este trabajo presenta una metodología para la generación de modelos tridimensionales de entornos urbanos. Se utiliza una plataforma terrestre multi-sensores compuesta por un LIDAR, una cámara esférica, GPS y otros sistemas inerciales. Los datos de los sensores están sincronizados con el sistema de navegación y georrefenciados. La metodología de digitalizaciónn se centra en 3 procesos principales. (1) La reconstrucción tridimensional, en el cual se elimina el ruido en los datos 3D y se disminuye la distorsión en las imágenes. Posteriormente se construye una imagen panorámica. (2) La texturización, se describe a detalle el algoritmo para asegurar la menor incertidumbre en el proceso de extracción de color. (3) La generación de mallas, se describe el proceso de mallado basado en octree’s, desde la generación de la semilla, el teselado, así como la eliminación de huecos en las mallas. Por último, se realiza una evaluación cuantitativa de la propuesta y se compara con otros enfoques existentes en el estado del arte. Se discuten a detalle los resultados obtenidos.

Palabras clave

Reconstrucción 3D; Texturizado; Mallado; LIDAR

Clasificación por materias

Modelado 3D; Visión 3D; Reconstrucción tridimensional

Texto completo:



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