Results 31 to 40 of about 21,657,058 (394)
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein +7 more
wiley +1 more source
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Background and purpose For postoperative breast cancer patients, deformable image registration (DIR) is challenged due to the large deformations and non‐correspondence caused by tumor resection and clip insertion. To deal with it, three metrics (fiducial‐, region‐, and intensity‐based) were jointly used in DIR algorithm for improved accuracy ...
Xin Xie +6 more
wiley +1 more source
Effectiveness of Sentinel-1 and Sentinel-2 for flood detection assessment in Europe
Natural Hazards and Earth System Sciences, 2022 . Inundation is one of the major natural hazards in Europe. The evaluation of the flood hazard and risk is not straightforward mainly due to the monitoring system that is poor or not uniformly distributed in the territory.
A. Tarpanelli, A. Mondini, S. Camici
semanticscholar +1 more source
Symposium - International Astronomical Union, 2001 Nowadays we have a massively increasing use of radio techniques in a wide variety of application fields. Meanwhile state-of-the-art receiver technology dramatically increases the sensitivity of modern radio telescopes. This situation produces a worrying vulnerability of ground-based radio telescopes to Radio Frequency Interference (RFI).
Stelio Montebugnoli +4 more
openaire +2 more sources
Normalized Burn Ratio Plus (NBR+): A New Index for Sentinel-2 Imagery
Remote Sensing, 2022 The monitoring of burned areas can easily be performed using satellite multispectral images: several indices are available in the literature for highlighting the differences between healthy vegetation areas and burned areas, in consideration of their ...
E. Alcaras +4 more
semanticscholar +1 more source
Investigating the potential of Sentinel-2 configuration to predict the quality of Mediterranean permanent grasslands in open woodlands [PDF]
, 2021 The assessment of pasture quality in permanent grasslands is essential for their conservation and management, as it can contribute to making real-time decisions for livestock management.
Abellanas Oar, B. +7 more
core +1 more source
CloudSEN12, a global dataset for semantic understanding of cloud and cloud shadow in Sentinel-2
Scientific Data, 2022 Accurately characterizing clouds and their shadows is a long-standing problem in the Earth Observation community. Recent works showcase the necessity to improve cloud detection methods for imagery acquired by the Sentinel-2 satellites.
C. Aybar +19 more
semanticscholar +1 more source
ASSESSMENT OF THE GEOMETRIC QUALITY OF SENTINEL-2 DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Abstract. High resolution (10 m and 20 m) optical imagery satellite Sentinel-2 brings a new perspective to Earth observation. Its frequent revisit time enables monitoring the Earth surface with high reliability. Since Sentinel-2 data is provided free of charge by the European Space Agency, its mass use for variety of purposes is expected.
Pandzić, M. +3 more
openaire +5 more sources
A Preliminary Global Automatic Burned-Area Algorithm at Medium Resolution in Google Earth Engine [PDF]
, 2021 A preliminary version of a global automatic burned-area (BA) algorithm at medium spatial resolution was developed in Google Earth Engine (GEE), based on Landsat or Sentinel-2 reflectance images.
Bastarrica Izaguirre, Aitor +3 more
core +8 more sources
European Journal of Remote Sensing, 2022 The co-existence of diverse plant forms in densely vegetated savanna environments presents a challenge when mapping species diversity using single remotely sensed data type that carries either optical or structural information.
Emmanuel Fundisi +2 more
doaj +1 more source