Results 51 to 60 of about 2,275,673 (297)

Measuring Leaf Water Content with Dual-Wavelength Intensity Data from Terrestrial Laser Scanners

open access: yesRemote Sensing, 2016
Decreased leaf moisture content, typically measured as equivalent water thickness (EWT), is an early signal of tree stress caused by drought, disease, or pest insects.
Samuli Junttila   +8 more
doaj   +1 more source

Self-calibration of terrestrial laser scanners: selection of the best geometric additional parameters [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Systematic errors are present in laser scanning system observations due to manufacturer imperfections, wearing over time, vibrations, changing environmental conditions and, last but not least, involuntary hits.
J. L. Lerma, D. García-San-Miguel
doaj   +1 more source

New Advances in Automated Urban Modelling from Airborne Laser Scanning Data [PDF]

open access: yes, 2011
Traditionally, urban models in many applications such as urban planning, disaster management, and computer games only require visual accuracy. However, more recently, updating urban infrastructure combined with the rise of mega-cities (i.e.
Hinks, Tommy   +7 more
core   +1 more source

Two-photon laser scanning fluorescence microscopy using photonic crystal fibre [PDF]

open access: yes, 2004
We report the application of a simple yet powerful modular pulse compression system, based on photonic crystal fibres which improves upon incumbent twophoton laser scanning fluorescence microscopy techniques.
McConnell, G., Riis, E.
core   +4 more sources

Camera Characterisation Based on Skin-Tone Colours for Rock Art Recording

open access: yesProceedings, 2019
Image-based characterisation offers accurate results for colour recording in cultural heritage documentation tasks. Although numerous researches are focused on improving either the mathematical model used or the workflow technical details, in this paper ...
Adolfo Molada-Tebar   +2 more
doaj   +1 more source

Discerning protein pools by selective staining with self‐labeling tags

open access: yesFEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Estimation of tree lists from airborne laser scanning by combining single-tree and area-based methods [PDF]

open access: yes, 2010
Individual tree crown segmentation from airborne laser scanning (ALS) data often fails to detect all trees depending on the forest structure. This paper presents a new method to produce tree lists consistent with unbiased estimates at area level.
Olofsson, Kenneth   +4 more
core   +1 more source

Fusion of range-based data and image-based datasets for efficient documentation of cultural heritage objects and sites [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Nowadays it is possible to measure accurately dense point clouds either with aerial/terrestrial laser scanning systems or with imagebased solutions (namely based on photogrammetric computer vision algorithms such as structure-from-motion (SfM)), from ...
J. L. Lerma, M. Cabrelles, S. Navarro
doaj   +1 more source

Adaptive laser range scanning

open access: yes2008 American Control Conference, 2008
We present an approach to laser range scanning in which quality metrics are used to automatically reduce the number of measurements acquired from a scanner viewpoint. As part of this approach we present improved versions of the orientation and reflectivity quality metrics, as well as introduce two quality metrics: resolvability and planarity.
MacKinnon, David   +2 more
openaire   +3 more sources

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

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