Results 41 to 50 of about 1,991 (152)

Automated Mosaicking of Sentinel-2 Satellite Imagery [PDF]

Remote Sensing, 2020
Repeat frequencies of optical remote sensing satellites have been increasing over the last 40 years, but there is still dependence on clear skies to acquire usable imagery. To increase the quality of data, composited mosaics of satellite imagery can be used. In this paper, we develop an automated method for clearing clouds and producing different types
James D. Shepherd, Jan Schindler, John R. Dymond   +2 more
openaire   +2 more sources

DeepSurveyCam—A Deep Ocean Optical Mapping System

Sensors, 2016
Underwater photogrammetry and in particular systematic visual surveys of the deep sea are by far less developed than similar techniques on land or in space.
Tom Kwasnitschka, Kevin Köser, Jan Sticklus, Marcel Rothenbeck, Tim Weiß, Emanuel Wenzlaff, Timm Schoening, Lars Triebe, Anja Steinführer, Colin Devey, Jens Greinert   +10 more
doaj   +1 more source

Land Use and Land Cover Analysis for Solid Waste Management in NCT Delhi Using Fusion Aware Segformer

Land Degradation &Development, EarlyView.
ABSTRACT The use of Land Use Land Cover (LULC) analysis is a fundamental requirement for urban solid waste management (SWM); however, conventional LULC analysis methods are not well suited to the spatio‐temporal variability, multi‐sensor heterogeneity, and seasonal variations of highly dynamic urban environments.
Rubeena Vohra, Ashish Kumar
wiley   +1 more source

Mozaičenje listov kart merila 1 : 75.000 tretje vojaške izmere avstro-ogrske : Mosaicking the 1:75,000 maps of the third military survey of the Austro-Hungarian Empire [PDF]

Geodetski Vestnik, 2009
SI: Originalnih listov sistemskih kart tretje vojaške izmere avstro-ogrske monarhije zaradi trapeznega formata ne moremo stično mozaičiti v ravnini. Če želimo izdelati digitalni mozaik listov, jih moramo transformirati, in če jih želimo uporabiti hkrati ...
Gábor Timár, Tomaž Podobnikar, Gábor Molnár   +2 more
doaj  

Topic: Smallholder Farmers' Adaptation Practices to the Effects of Land Degradation on Livelihoods in Semi‐Arid Ghana

Land Degradation &Development, EarlyView.
ABSTRACT Although several environmental challenges exist globally, land degradation is the greatest threat and risk factor wedging human livelihoods. Despite widespread awareness of climate change, little empirical evidence exists on land degradation and its impacts on livelihoods in semi‐arid agroecological systems.
Philip Aniah, Raymond Agyepong Antwi, Miriam Afi Kosi, Makemie Jumanne Mabula   +3 more
wiley   +1 more source

Dumpsite Seabed Characterization of the San Pedro Basin, CA, From Autonomous Vehicle Observations

Journal of Field Robotics, EarlyView.
ABSTRACT A wide‐area seabed survey was conducted using autonomous underwater vehicles (AUVs) in a known dumpsite off the coast of Southern California that has been found to have widespread sediment contamination from the chemical dichlorodiphenyltrichloroethane (DDT).
Ryan A. McCarthy, Dylan Kriegman, Sophia T. Merrifield, Heidi Batchelor, Eric J. Terrill   +4 more
wiley   +1 more source

Mosaicking with Cosmic Microwave Background Interferometers

The Astrophysical Journal, 2007
Measurements of cosmic microwave background (CMB) anisotropies by interferometers offer several advantages over single-dish observations. The formalism for analyzing interferometer CMB data is well developed in the flat-sky approximation, valid for small fields of view.
Bunn, Emory F., White, Martin
openaire   +2 more sources

Deep Placental Vessel Segmentation for Fetoscopic Mosaicking [PDF]

, 2020
During fetoscopic laser photocoagulation, a treatment for twin-to-twin transfusion syndrome (TTTS), the clinician first identifies abnormal placental vascular connections and laser ablates them to regulate blood flow in both fetuses. The procedure is challenging due to the mobility of the environment, poor visibility in amniotic fluid, occasional ...
Sophia Bano, Francisco Vasconcelos 0001, Luke M. Shepherd, Emmanuel B. Vander Poorten, Tom Vercauteren, Sébastien Ourselin, Anna L. David, Jan Deprest, Danail Stoyanov   +8 more
openaire   +5 more sources

Digital Elevation Model Database W42 - A scalable System for Spatial Data [PDF]

, 2008
Digital Elevation Models (DEMs) provide elementary information for various application fields. From a global point of view, there are many different sources to furnish height information of the Earth's surface.
Roth, Achim, Marschalk, Ursula, M. Habermeyer, A. Roth, U. Marschalk, Habermeyer, Martin   +5 more
core  

Monitoring of Crustose Coralline Algae Using Low‐Altitude Unmanned Aerial Vehicles in Intertidal Reefs

Remote Sensing in Ecology and Conservation, EarlyView.
High‐resolution visible‐light imagery from low‐altitude unmanned aerial vehicles, combined with superpixel segmentation and a Random Forest classifier, provides an efficient and scalable framework for mapping and monitoring crustose coralline algae and reef habitats.
Po‐Chien Lin, Han‐Yang Yeh, Zhi‐Cheng Huang   +2 more
wiley   +1 more source