Methodology to automatic integration of digital aerial images and LIDAR data

• Autor(a) principal: Santos Jr, Roosevelt de Lara
• Data de Publicação: 2007
• Outros Autores: Mitishita, Edson Aparecido, Bähr, Hans-Peter, Vögtle, Thomas
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Boletim de Ciências Geodésicas
• Texto Completo: https://revistas.ufpr.br/bcg/article/view/10736
• topic: automation, data integration, automatic exterior orientation, digital camera, LIDAR; automação, integração, orientação exterior automática, câmera digital, SPLA

This article presents a methodology for automatic integration between aerial digitalimages and LIDAR data. The aerial and the LIDAR surveying were accomplishedin distinct times and in different flight missions. The intensity image was generatedby interpolation from 3D positions and laser pulse return information contained inthe LIDAR cloud points. The knowledge of the positions in both kind of image:aerial digital image and intensity image, means to know the point position in theimage and object spaces. So these points could be considered as the control ones.The matching among RGB image and LIDAR intensity image is not trivial due totheir accented radiometric differences. The images are automatically processed andtheir point correspondence are based upon corners and edges detection, area basedmatching, cross correlation coefficient, and 2D affine transformation. The processfinishes with the computation of the exterior orientation parameters using spatialresection controlled by control points extracted automatically.