Results 41 to 50 of about 136,882 (250)

SLAM for Indoor Mapping of Wide Area Construction Environments [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Simultaneous localization and mapping (SLAM), i.e., the reconstruction of the environment represented by a (3D) map and the concurrent pose estimation, has made astonishing progress.
V. Ress   +4 more
doaj   +1 more source

Preserving the impossible: conservation of soft-sediment hominin footprint sites and strategies for three-dimensional digital data capture. [PDF]

open access: yes, 2013
Human footprints provide some of the most publically emotive and tangible evidence of our ancestors. To the scientific community they provide evidence of stature, presence, behaviour and in the case of early hominins potential evidence with respect to ...
AH Gonzalez   +45 more
core   +2 more sources

Generating Oriented Pointsets From Redundant Depth Maps Using Restricted Quadtrees [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In this article we present an algorithm for the fusion of depth images derived by dense image matching (DIM). One key idea of our algorithm is to generate a 2D triangulation for each available depth map in the image sequence using a restricted quadtrees (
M. Rothermel, N. Haala, D. Fritsch
doaj   +1 more source

3D Data Processing Toward Maintenance and Conservation. The Integrated Digital Documentation of Casa de Vidro [PDF]

open access: yes, 2019
During the last decade, 3D integrated surveys and BIM modelling procedures have greatly improved the overall knowledge on some Brazilian Modernist buildings.
Balzani, M, Maietti, F, Rossato, L
core   +2 more sources

Investigation on the automatic geo-referencing of archaeological UAV photographs by correlation with pre-existing ortho-photos [PDF]

open access: yes, 2014
We present a method for the automatic geo-referencing of archaeological photographs captured aboard unmanned aerial vehicles (UAVs), termed UPs. We do so by help of pre-existing ortho-photo maps (OPMs) and digital surface models (DSMs).
Briese, Christian   +4 more
core   +2 more sources

QUALITY OF 3D POINT CLOUDS FROM HIGHLY OVERLAPPING UAV IMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
UAVs are becoming standard platforms for photogrammetric data capture especially while aiming at large scale aerial mapping for areas of limited extent.
N. Haala, M. Cramer, M. Rothermel
doaj   +1 more source

Airborne photogrammetry and LIDAR for DSM extraction and 3D change detection over an urban area : a comparative study [PDF]

open access: yes, 2013
A digital surface model (DSM) extracted from stereoscopic aerial images, acquired in March 2000, is compared with a DSM derived from airborne light detection and ranging (lidar) data collected in July 2009.
De Maeyer, Philippe   +4 more
core   +1 more source

Monitoring of Building Construction by 4D Change Detection Using Multi-temporal SAR Images [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Monitoring urban changes is important for city management, urban planning, updating of cadastral map, etc. In contrast to conventional field surveys, which are usually expensive and slow, remote sensing techniques are fast and cost-effective alternatives.
C. H. Yang, Y. Pang, U. Soergel
doaj   +1 more source

New instruments and technologies for Cultural Heritage survey: full integration between point clouds and digital photogrammetry [PDF]

open access: yes, 2010
In the last years the Geomatic Research Group of the Politecnico di Torino faced some new research topics about new instruments for point cloud generation (e.g. Time of Flight cameras) and strong integration between multi-image matching techniques and 3D
Chiabrando, Filiberto   +3 more
core   +1 more source

Fisheye Photogrammetry to Survey Narrow Spaces in Architecture and a Hypogea Environment [PDF]

open access: yes, 2018
Nowadays, the increasing computation power of commercial grade processors has actively led to a vast spreading of image-based reconstruction software as well as its application in different disciplines.
Baiocchi, Valerio   +9 more
core   +2 more sources

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