A INFLUÊNCIA DA CALIBRAÇÃO AÉREA DE UMA CÂMARA DIGITAL DE BAIXO CUSTO INTEGRADA COM UM SISTEMA LIDAR NO PROCESSAMENTO DE AEROTRIANGULAÇÃO/The influence of aerial calibration of low cost digital camera integrated with LIDAR system in the aerotriangulation process

• Published in: Boletim de Ciências Geodésicas 2013-10, Vol.19 (4), p.687
• Main Authors: Debiasi, Paula, Mitishita, Edson A
• Format: Article
• Language: Portuguese
• ISSN: 1413-4853; 1982-2170

This article aimed at investigating the influence of aerial calibration of the low cost camera on systematic error correction of the photogrammetric observations for the aerial triangulation process. The calibration was performed using aerial photographs taken from a test field with two configurations of photogrammetric blocks: no cross strips and cross strips. The camera station's positions, from the integration with LIDAR system sensor's orientation and position, were used in the aerial calibration process. Interior orientation parameters from a terrestrial calibration process were also used in the aerotriangulation process for comparison purpose. The obtained results showed that, the aerotriangulation supported by camera station's position, using the interior orientation parameters from aerial calibrations, provided higher accuracy than the aerotriangulation process using interior orientation parameters determined in the terrestrial calibration, especially the vertical accuracy. It has been concluded that, the vertical accuracy of the process with constraints in the perspective center is more dependent on the quality of the interior orientation parameters than the planimetric accuracy.