Results 21 to 30 of about 596,265 (301)
The Instrument Design of the DLR Earth Sensing Imaging Spectrometer (DESIS)
Whether for identification and characterization of materials or for monitoring of the environment, space-based hyperspectral instruments are very useful. Hyperspectral instruments measure several dozens up to hundreds of spectral bands.
David Krutz +19 more
doaj +1 more source
VOLUME BASED DTM GENERATION FROM VERY HIGH RESOLUTION PHOTOGRAMMETRIC DSMS [PDF]
In this paper we propose a new algorithm for digital terrain (DTM) model reconstruction from very high spatial resolution digital surface models (DSMs).
B. Piltz, S. Bayer, A. M. Poznanska
doaj +1 more source
Detection of solvents using a distributed fibre optic sensor [PDF]
A fibre optic sensor that is capable of distributed detection of liquid solvents is presented. Sensor interrogation using optical time domain reflectometry (OTDR) provides the capability of locating solvent spills to a precision of ±2 m over a total ...
A. MacLean +8 more
core +1 more source
COMPARISON BETWEEN TWO GENERIC 3D BUILDING RECONSTRUCTION APPROACHES – POINT CLOUD BASED VS. IMAGE PROCESSING BASED [PDF]
This paper compares two generic approaches for the reconstruction of buildings. Synthesized and real oblique and vertical aerial imagery is transformed on the one hand into a dense photogrammetric 3D point cloud and on the other hand into ...
D. Dahlke, M. Linkiewicz
doaj +1 more source
Krill: An exploration in underwater sensor networks [PDF]
While sensor networks have now become very popular on land, the underwater environment still poses some difficult problems. Communication is one of the difficult challenges under water. There are two options: optical and acoustic.
Chen, P. +7 more
core +3 more sources
X-ray fluorescence computed tomography (XFCT) has attracted wide attention due to its ability to simultaneously and nondestructively obtain structural and elemental distribution information within samples.
Shuang Yang +4 more
doaj +1 more source
Regional Rapid Mapping for First Responders - Turkey 2023 Earthquake [PDF]
In disaster scenarios, up-to-date information about the affected areas is of fundamental importance, especially for Search and Rescue (SaR) teams. Although the usual space-based optical remote sensing systems provide an overview, the ground resolution of
J. Brauchle +7 more
doaj +1 more source
The physics of extreme sensitivity in whispering gallery mode optical biosensors [PDF]
Whispering gallery mode (WGM) optical biosensors are capable of extraordinarily sensitive specific and nonspecific detection of species suspended in a gas or fluid.
Flagan, Richard C. +2 more
core +1 more source
TERRAIN AWARE IMAGE CLIPPING FOR REAL-TIME AERIAL MAPPING [PDF]
Many remote sensing applications demand for a fast and efficient way of generating orthophoto maps from raw aerial images. One prerequisite is direct georeferencing, which allows to geolocate aerial images to their geographic position on the earth’s ...
D. Hein, R. Berger
doaj +1 more source
Remote Sensing of High Temperature Events by the FireBird Mission [PDF]
More than 10 years after the launch of DLR’s first small satellite BIRD, a follow on project called FireBird was started. Based on the success of the BIRD mission, the main scientific goal- the investigation of high temperature events and their impact on
E. Lorenz +5 more
doaj +1 more source

