Radiometric cross-calibration of Earth observation sensors is an effective approach to evaluate instrument calibration performance, identify and diagnose calibration anomalies, and quantify the consistency of measurements from different sensors. In this study a novel cross-calibration method is proposed, taking into account the spectral and viewing angle differences adequately; the method is ap...

In this article we discuss the possibility of using the observations by GLAST of standard gamma sources, as the Crab Nebula, to calibrate Imaging Air Cherenkov detectors, MAGIC in particular, and optimise their energy resolution. We show that at around 100 GeV the absolute energy calibration uncertainty of Cherenkov telescopes can be reduced to . 10% by means of such cross-calibration procedure.

In this paper, we present the calibration results of the NASA/JPL Airborne Synthetic Aperture Radar (AIRSAR) for the Pacific Rim II mission. We also demonstrate the key elements of the calibration techniques for both polarimetric SAR (POLSAR) and cross-track interferometric SAR (TOPSAR) processed with the AIRSAR Integrated Processor.

Early in its mission, the Landsat-7 spacecraft was temporarily placed in a ‘‘tandem’’ orbit very close to that of the Landsat-5 spacecraft in order to facilitate the establishment of sensor calibration continuity between the Landsat-7 Enhanced Thematic Mapper Plus (ETM+) and Landsat-5 Thematic Mapper (TM) sensors. The key period for the tandem configuration was June 1–4, 1999, during which hund...

With the rapid development of three-dimensional (3D) modelling, camera calibration is paid more and more attention. In this article, we analyse the influence factors in the calibration: the camera and lens, the shape of control points, photography model and the scale between calibration object and measurement. Appropriate model can get the right result quickly, and the position of the model in ...

To obtain more abundant target information for vegetation remote sensing research, the wide field of view (WFV) GaoFen-6 (GF-6) satellite utilizes eight bands, including four new bands. Unfortunately, it finds unavailable reference bands from well-calibrated sensors to implement radiometric cross-calibration WFV sensor these which severely affects quality estimation and degradation detection WF...

PURPOSE Myocardial sympathetic imaging with 123I-meta-iodobenzylguanidine (123I-mIBG) has gained clinical momentum. Although the need for standardization of 123I-mIBG myocardial uptake has been recognized, the availability of practical clinical standardization approaches is limited. The need for standardization includes the heart-to-mediastinum ratio (HMR) and washout rate with planar imaging, ...

Two photon absorption laser induced fluorescence (TALIF) measurements of neutral hydrogen and its isotopes are typically calibrated by performing TALIF measurements on krypton with the same diagnostic system and using the known ratio of the absorption cross sections [K. Niemi et al., J. Phys. D 34, 2330 (2001)]. Here we present the measurements of a new calibration method based on a ground stat...

This paper gives details of the image quality analysis of ASAR alternating polarisation mode APP and APM products performed during the ASAR validation phase. Initially, a description of the analysis methodology and performance assessment tools, image properties and example APP and APM products is given followed by the image quality analysis. This analysis includes format verification, visual in...