Understanding ONA in Satellite Imagery: What is Off Nadir Angle and What Is It Used For?
Off Nadir Angle (ONA) plays a crucial role in the quality of optical satellite imagery. It influences its resolution and clarity, decides the visibility of features, and makes it easier or harder to identify objects. Moreover, ONA is used to create stereo imagery and 3D models of the Earth’s surface. Read on to learn more.
Sun Glint Can Ruin Satellite Imagery. How Do We Avoid It?
Sun glint occurs when sunlight reflects off water or another reflective surface at the satellite sensor, creating a bright glare in the image. That can make it impossible to extract useful information from satellite imagery. What do we do to minimise its impact?
What do Star Forts Look Like From Space? 20 Satellite Images That Will Take Your Breath Away
Star forts are not only perfect examples of effective military engineering; they are also beautiful. Let’s join us on a fascinating journey through architecture and history – from space. All satellite images in this article were collected by WorldView-3, WorldView-2 or GeoEye-1 at 30–50 cm resolution.
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Arrival Cities: Classifying Urban Poor Areas with Satellite Imagery
Hannes Taubenböck and his team at DLR are using Very High Resolution (VHR) satellite imagery, supplied by European Space Imaging, combined with auxiliary surveys to develop a base model classification system for the shape and structure of urban poor areas around the world. Slum, favela, tenement…whatever you call it, nearly
Automated Beach Litter Detection Using Satellite Imagery and Machine Learning
The Tama Group demonstrates how they use machine learning to detect trash along beaches from VHR satellite imagery and generate density maps to aid in cleanup efforts. Traditionally it has been a human user who analyzes satellite imagery for changes, but this process is slow and time-consuming. Whether detecting trash
AW3D Enhanced
The ability to analyse the elevation of terrain and surface features in high resolution is a crucial component of most geospatial applications. European Space Imaging has partnered with NTT Data to offer AW3D Enhanced elevation models. By leveraging the world’s highest resolution satellite imagery from the Maxar WorldView Constellation, AW3D
AW3D Standard
European Space Imaging has partnered with NTT Data to offer AW3D Standard – a global elevation model derived from millions of satellite images acquired by the Advanced Land Observing Satellite from JAXA. Featuring high geolocational accuracy without any Ground Control Points (GCP) and resolutions of 2.5 m or 5 m,
Bathymetry
Accurate and high resolution bathymetric data is a necessity for a wide range of coastal oceanographic research and is especially important when studying the environmental health of benthic habitats that are often disturbed by human or natural phenomena. Utilising the WorldView-2 and WorldView-3 satellites, we are able to see further
