Results 41 to 50 of about 24,465 (223)
Predicting growing stock volume of Eucalyptus plantations using 3-D point clouds derived from UAV imagery and ALS data [PDF]
, 2019 Estimating forest inventory variables is important in monitoring forest resources and mitigating climate change. In this respect, forest managers require flexible, non-destructive methods for estimating volume and biomass.
Botequim, Brigite +8 more
core +2 more sources
GSLAM: Initialization-robust Monocular Visual SLAM via Global Structure-from-Motion
, 2017 Many monocular visual SLAM algorithms are derived from incremental structure-from-motion (SfM) methods. This work proposes a novel monocular SLAM method which integrates recent advances made in global SfM. In particular, we present two main contributions
Tan, Ping, Tang, Chengzhou, Wang, Oliver
core +1 more source
Exploiting low-cost 3D imagery for the purposes of detecting and analyzing pavement distresses [PDF]
, 2020 Road pavement conditions have significant impacts on safety, travel times, costs, and environmental effects. It is the responsibility of road agencies to ensure these conditions are kept in an acceptable state.
Di Mino G., Inzerillo L., Roberts R.
core +1 more source
Journal of Forest Science, 2018 The wood yield of hedge banks is very heterogeneous and hard to estimate in advance. The aim of the present study was to estimate the dry biomass of hedge banks shortly before harvesting using two different non-destructive approaches: (i) allometric ...
Stefan LINGNER +3 more
doaj +1 more source
The survey of the Basilica di Collemaggio in L’Aquila with a system of terrestrial imaging and most proven techniques [PDF]
, 2017 The proposed job concerns the evaluation of a series of surveys carried out in the context of a campaign of studies begun in 2015 with the objective of comparing the accuracies obtainable with the systems of terrestrial imaging, compared to unmanned ...
Allegra, Massimo +5 more
core +2 more sources
Perceptual Biases in the Interpretation of Non-Rigid Shape Transformations from Motion
VisionMost existing research on the perception of 3D shape from motion has focused on rigidly moving objects. However, many natural objects deform non-rigidly, leading to image motion with no rigid interpretation.
Ryne Choi, Jacob Feldman, Manish Singh
doaj +1 more source
Suitability of ground-based SfM-MVS for monitoring glacial and periglacial processes [PDF]
, 2016 Photo-based surface reconstruction is rapidly emerging as an alternative survey technique to lidar (light detection and ranging) in many fields of geoscience fostered by the recent development of computer vision algorithms such as structure from motion ...
Carturan, Luca +6 more
core +2 more sources
Application of ‘Structure from Motion’ (SfM) technique in physical hydraulic modelling
Journal of Physics: Conference Series, 2019 Abstract There are many methods available for measurement of bed morphology in physical hydraulic model studies considering mobile bed sediment. Among which, there are sophisticated instrumentations which provide quality results in shorter time but are vastly expensive and requires special training for execution. Whereas the conventional
Sanat Kumar Karmacharya +3 more
openaire +1 more source
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Abstract. The purpose of this research study is to assess the potential using smartphone camera captured images for 3D model reconstruction by using Structure from Motion (SFM) photogrammetry technique, specifically in term of volumetric measurement. In past, the volumetric measurement of surface or object is by using Imaging Station or by professional
E. H. Heng Siong +2 more
openaire +3 more sources
Archival photogrammetric analysis of river–floodplain systems using Structure from Motion (SfM) methods [PDF]
Earth Surface Processes and Landforms, 2016 AbstractIn this study we evaluate the extent to which accurate topographic data can be obtained by applying Structure from Motion (SfM) photogrammetric methods to archival imagery. While SfM has proven valuable in photogrammetric applications using specially acquired imagery (e.g. from unmanned aerial vehicles), it also has the potential to improve the
Bakker Maarteen, Lane Stuart N.
openaire +1 more source