Results 21 to 30 of about 4,510,095 (299)

Radiometric Cross-Calibration of GF-4 PMS Sensor Based on Assimilation of Landsat-8 OLI Images

open access: yesRemote Sensing, 2017
Earth observation data obtained from remote sensors must undergo radiometric calibration before use in quantitative applications. However, the large view angles of the panchromatic multispectral sensor (PMS) aboard the GF-4 satellite pose challenges for ...
Yepei Chen   +4 more
doaj   +3 more sources

Concept of a Satellite Cross-Calibration Radiometer for In-Orbit Calibration of Commercial Optical Satellites

open access: yesRemote Sensing
The satellite Earth observation (EO) sector is burgeoning with hundreds of commercial satellites being launched each year, delivering a rich source of data that could be exploited for societal benefit.
Medhavy Thankappan   +12 more
doaj   +2 more sources

Antarctic biological soil crusts surface reflectance patterns from landsat and sentinel-2 images [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2022
The remote sensing techniques must be used to obtain long-term information in remote areas, like the Antarctic continent, to monitor the environmental productivity and its changes.
ELIANA L. FONSECA   +3 more
doaj   +1 more source

Hyperspectral Empirical Absolute Calibration Model Using Libya 4 Pseudo Invariant Calibration Site

open access: yesRemote Sensing, 2021
The objective of this paper is to find an empirical hyperspectral absolute calibration model using Libya 4 pseudo invariant calibration site (PICS). The approach involves using the Landsat 8 (L8) Operational Land Imager (OLI) as the reference radiometer ...
Manisha Das Chaity   +3 more
doaj   +1 more source

Data Comparison and Cross-Calibration between Level 1 Products of DPC and POSP Onboard the Chinese GaoFen-5(02) Satellite

open access: yesRemote Sensing, 2023
The Polarization CrossFire (PCF) suite onboard the Chinese GaoFen-5(02) satellite has been sophisticatedly composed by the Particulate Observing Scanning Polarimeter (POSP) and the Directional Polarimetric Camera (DPC).
Xuefeng Lei   +14 more
doaj   +1 more source

Cross-Radiometric Calibration and NDVI Application Comparison of FY-4A/AGRI Based on Aqua-MODIS

open access: yesRemote Sensing, 2023
To enhance the accuracy and stability of FY-4A/AGRI detection data, the MODIS, with highly accurate onboard calibration, is selected as the reference sensor for cross-radiation calibration calculations.
Xiaohui He   +4 more
doaj   +1 more source

Cross-Layer Distillation with Semantic Calibration

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
Recently proposed knowledge distillation approaches based on feature-map transfer validate that intermediate layers of a teacher model can serve as effective targets for training a student model to obtain better generalization ability. Existing studies mainly focus on particular representation forms for knowledge transfer between manually specified ...
Defang Chen 0001   +6 more
openaire   +3 more sources

Vicarious CAL/VAL Approach for Orbital Hyperspectral Sensors Using Multiple Sites

open access: yesRemote Sensing, 2023
The hyperspectral (HSR) sensors Earth Surface Mineral Dust Source Investigation (EMIT) of the National Aeronautics and Space Administration (NASA) and Environmental Mapping and Analysis Program (EnMAP) of the German Aerospace Center (DLR) were recently ...
Daniela Heller Pearlshtien   +2 more
doaj   +1 more source

On the use of cross‐validation for the calibration of the adaptive lasso

open access: yesBiometrical Journal, 2023
AbstractCross‐validation is the standard method for hyperparameter tuning, or calibration, of machine learning algorithms. The adaptive lasso is a popular class of penalized approaches based on weightedL1‐norm penalties, with weights derived from an initial estimate of the model parameter.
Ballout, Nadim   +2 more
openaire   +6 more sources

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