Buscar
Mostrando ítems 1-10 de 87
Use of drone technology and photogrammetry for beach morphodynamics and breakwater monitoring
(2016-05-10)
Results from the use of UAV-based photogrammetry for monitoring changes in beaches and breakwaters are presented. Main recommendations are provided on the basis of lessons learned about the collection of reliable results ...
Automatic space resection using a constrained relational matching
(2000-01-01)
Image orientation is a basic problem in Digital Photogrammetry. While interior and relative orientations have been successfully automated, the absolute orientation (or space resection) continues to be an important topic ...
Application of the photogrammetric and the geographic information systems in the urban environment: A case of study
(2002-01-01)
The urban growth and the environmental relationship are several times joint as to the of the urban soil occupation as to the urban area development. The transformation of the several kinds of soil use and the human being ...
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 ...
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 ...
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 ...
Bundle block adjustment of cbers 2b hrc images using control lines
(2010-01-01)
China-Brazil Earth Resources Satellite (CBERS) images present strategic importance for Brazil, providing support in several applications such as deforestation management and fire control, mainly in Amazon region. CBERS 2B ...
Accuracy assessment of a photogrammetric close-range reconstruction system
(Institute of Electrical and Electronics Engineers (IEEE), Computer Soc, 1998-01-01)
Geometric accuracy of a close-range photogrammetric system is assessed in this paper considering surface reconstruction with structured light as its main purpose. The system is based on an off-the-shelf digital camera and ...