The first Pleiades-HR satellite, part of a constellation of two, has been launched on December 17, 2011. This satellite produces high resolution optical images. In order to achieve good image quality, Pleiades-HR should first undergo an important 6 month commissioning phase period. This phase consists in calibrating and assessing the radiometric and geometric image quality to offer the best ima...

Abstract. The requirement for very high-resolution satellite imagery by different applications has been increasing continuously. Several commercial and government-supported missions provide sub-meter spatial resolutions from optical sensors aboard Earth Observation (EO) satellites. MAXAR constellation acquires images with up to 30 cm Ground Sampling Distances (GSDs); the High-Definition (HD) im...

The ice, cloud, and land elevation satellite-2 (ICESat-2) is providing global measurements to the science community. ICESat-2 measures height of Earth’s surface using a photon counting laser altimeter, ATLAS (advanced topographic altimetry system). As system, number reflected photons per shot, or radiometry, function primarily transmitted energy, solar elevation, reflectance, atmospheric scatte...

How to tell time: • Relative Time: putting events in time order. • Law of Superposition • Correlation of rock layers using fossils. William Smith " There is a wonderful order and regularity with which nature has disposed of fossils and assigned to each its peculiar stratum. " How to tell time: • Absolute Time: Determining age in years.

Reliable and optimal exploitation of rapidly developing airborne imaging methods requires geometric and radiometric quality assurance of production systems in operational conditions. Permanent test sites are the most promising approach for cost-efficient performance assessment. Optimal construction of permanent radiometric test sites for high resolution airborne imaging systems is an unresolved...

This article presents the results of an assessment of radiometric correction methods of images taken by the large-format aerial, photogrammetric, multispectral pushbroom camera Leica Geosystems ADS40. The investigation was carried out in the context of the multi-site EuroSDR project “Radiometric aspects of digital photogrammetric images”. Images were collected at the forestry research test site...

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...

We describe a simulation of the complete image processing pipeline of a digital camera, beginning with a radiometric description of the scene captured by the camera and ending with a radiometric description of the image rendered on a display. We show that there is a good correspondence between measured and simulated sensor performance. Through the use of simulation, we can quantify the effects ...

The interferometer for emission and solar absorption (INTESA) is an infrared spectrometer designed to study radiative transfer in the troposphere and lower stratosphere from a NASA ER-2 aircraft. The Fourier-transform spectrometer (FTS) operates from 0.7 to 50 mum with a resolution of 0.7 cm(-1). The FTS observes atmospheric thermal emission from multiple angles above and below the aircraft. A ...