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Desenvolvimento de um Sistema de Aquisição de Informações Volumétricas usando Método de Triangulação Laser e Campo de Visão Variável

João Guilherme Darezzo Martins da FrançaMário Alexandre GazziroJosé Hiroki Saito

The most efficient 3D acquisition system uses the principle of laser triangulation or theprinciple of time of flight - TOF. In the systems based on triangulation, the reach and the depthvariation are very limited, but it has a great precision. On the other hand the opposite occurs to the TOF systems where it has a low precision, and a great reach and depth variation [1]. This work describes a project and implementation of a 3D acquisition system, with greater precision and reach than traditional laser triangulation 3D scanners, and it's as versatile as TOF systems. An initial prototype of this system had been developed showing the resolution of 0.19mm, 0.25mm and 0.06mm for x, y and z respectively at 20cm of distance between the sensor and the object. This prototype producessatisfactory results at 20cm to 2m of depth.

http://www.lbd.dcc.ufmg.br/colecoes/wra/2004/007.pdf

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