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Using relative orientation constraints to produce virtual images from oblique frames
(2012-01-01)
Image acquisition systems based on multi-head arrangement of digital cameras are attractive alternatives enabling larger imaging area when compared to a single frame camera. The calibration of this kind of systems can be ...
Tree stem reconstruction using vertical fisheye images: A preliminary study
(2016-01-01)
A preliminary study was conducted to assess a tree stem reconstruction technique with panoramic images taken with fisheye lenses. The concept is similar to the Structure from Motion (SfM) technique, but the acquisition and ...
Geometric and reflectance signature characterization of complex canopies using hyperspectral stereoscopic images from uav and terrestrial platforms
(2016-01-01)
Light-weight hyperspectral frame cameras represent novel developments in remote sensing technology. With frame camera technology, when capturing images with stereoscopic overlaps, it is possible to derive 3D hyperspectral ...
Cartography undertaken using simple photogrammetry as compared with digital methodsCartografía elaborada con un método fotogramétrico simple versus un método digital (Softcopy-Fotogrametría)
(Universidad Austral de Chile, Facultad de Ciencias Forestales y Recursos Naturales., 2004)
Rpas in the support for photogrammetry education: Cases in topographic mapping and documentation of historical monuments
(2019-06-04)
Currently on the world market there are several models and manufacturers of RPAS-UAV. This equipment made it possible to complete the entire flow of the photogrammetric mapping process in teaching for the students of the ...
Strategy to detect ground control in digital images
(Spie - Int Soc Optical Engineering, 1998-01-01)
The identification of ground control on photographs or images is usually carried out by a human operator, who uses his natural skills to make interpretations. In Digital Photogrammetry, which uses techniques of digital ...
Automatic absolute orientation of scanned aerial photographs
(Institute of Electrical and Electronics Engineers (IEEE), Computer Soc, 1998-01-01)
Image orientation is a basic problem in Digital Photogrammetry. While interior and relative orientations were succesfully automated, the same can not be said about absolute orientation. This process can be automated by ...
Classificação automática de padrões projetados por um sistema de luz estruturada
(2005-01-01)
One of the main problems in Computer Vision and Close Range Digital Photogrammetry is 3D reconstruction. 3D reconstruction with structured light is one of the existing techniques and which still has several problems, one ...
Classificação automática de padrões projetados por um sistema de luz estruturada
(2005-01-01)
One of the main problems in Computer Vision and Close Range Digital Photogrammetry is 3D reconstruction. 3D reconstruction with structured light is one of the existing techniques and which still has several problems, one ...