Results 71 to 80 of about 10,639 (216)

The application of terrestrial laser scanner and SfM photogrammetry in measuring erosion and deposition processes in two opposite slopes in a humid badlands area (central Spanish Pyrenees) [PDF]

open access: yesSOIL, 2015
Erosion and deposition processes in badland areas are usually estimated using traditional observations of topographic changes, measured by erosion pins or profile metres (invasive techniques).
E. Nadal-Romero   +3 more
doaj   +1 more source

Unmanned Aerial Vehicles (UAVs) in environmental biology: A Review [PDF]

open access: yes, 2018
Acquiring information about the environment is a key step during each study in the field of environmental biology at different levels, from an individual species to community and biome.
Bogawski, Pawel   +2 more
core   +2 more sources

Comparing a single target image with a reference three‐dimensional (3D) virtual avatar of a real person

open access: yesJournal of Forensic Sciences, Volume 71, Issue 3, Page 1438-1448, May 2026.
Abstract The demand for analyzing images from sources such as closed‐circuit television cameras has increased significantly. Conventional analyses, including gait and soft biometrics, typically require the comparison of two video footage clips, as these methods are predicated on video‐to‐video comparisons.
Daisuke Imoto   +4 more
wiley   +1 more source

Turning Mediterranean Farmlands Into Priority Habitats: Natural Expansion of Juniper Woodlands After Agricultural Abandonment

open access: yesJournal of Vegetation Science, Volume 37, Issue 3, May/June 2026.
Spanish juniper woodlands are expanding across central Spain as farmland is abandoned. By combining 34 years of land‐cover data with high‐resolution photogrammetry and field measurements, we show that juniper growth depends on topography, solar exposure and competition with shrubs. High irradiance increases biomass in older stands but limits young ones,
Laura Bentley   +5 more
wiley   +1 more source

Data Fusion of Objects Using Techniques Such as Laser Scanning, Structured Light and Photogrammetry for Cultural Heritage Applications

open access: yes, 2015
In this paper we present a semi-automatic 2D-3D local registration pipeline capable of coloring 3D models obtained from 3D scanners by using uncalibrated images.
A Gallo   +20 more
core   +3 more sources

Linking Remotely Sensed Hydromorphological Conditions With Biological Observations to Estimate Salmon Spawning Capacity

open access: yesEcohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Performing ecohydraulic assessments of salmon habitat is essential for planning and evaluating management actions. Current in situ and modelling approaches, although accurate, can be time‐consuming and expensive, which limits the areal extent of the study.
Jared G. Stieve   +2 more
wiley   +1 more source

Freshwater Fish Habitat Complexity Mapping Using Above and Underwater Structure-From-Motion Photogrammetry

open access: yesRemote Sensing, 2018
Substrate complexity is strongly related to biodiversity in aquatic habitats. We illustrate a novel framework, based on Structure-from-Motion photogrammetry (SfM) and Multi-View Stereo (MVS) photogrammetry, to quantify habitat complexity in freshwater ...
Margaret Kalacska   +4 more
doaj   +1 more source

Modeling Benthic Animals in Space and Time Using Bayesian Point Process With Cross Validation: The Case of Holoturians

open access: yesEnvironmetrics, Volume 37, Issue 3, April 2026.
ABSTRACT Holothurian populations in the Mediterranean are relatively understudied, with limited knowledge of their spatial distribution, habitat preferences, and ecological dynamics, making their monitoring a key challenge for ecosystem assessment and sustainable management.
Daniele Poggio   +6 more
wiley   +1 more source

Studying the influence of livestock pressure on gully erosion in rangelands of SW Spain by means of the UAV+SfM workflow

open access: yesBoletín de la Asociación de Geógrafos Españoles, 2018
Gully erosion in agrosilvopastoral systems of SW Spain represents a common degradation process, but has been hardly analysed. The suitability of using the Unmanned Aerial Vehicles (UAV) and Structure from Motion photogrammetry (SfM) workflow to map ...
Álvaro Gómez Gutiérrez   +6 more
doaj   +5 more sources

High resolution spatial variability in spring snowmelt for an Arctic shrub-tundra watershed [PDF]

open access: yes, 2019
Arctic tundra environments are characterized by spatially heterogeneous end-of-winter snow cover because of high winds that erode, transport and deposit snow over the winter.
Marsh, Philip, Dr, Walker, Branden J
core   +1 more source

Home - About - Disclaimer - Privacy