Stereo photogrammetry for multi-temporal surface models based on aerial imagery

Stereo_photogrammetryThe data provided by aerial imagery are amongst the oldest sources of spatially explicit information for modern-time environmental management. These data are often captured over landscape-level domains using overlapping flight stripes to enable stereo photogrammetric analysis based on parallax and obtaining information on vertical forest structure. As compared to the state-of-the-art LiDAR data, the stereo photogrammetric analysis is associated with a number of advantages and disadvantages for creating surface models, including the absence of bare earth ground data and usual geometric distortions (disadvantage) as well as reasonable acquisition costs and provision of multispectral information (advantages). The idea behind this work within an innovation laboratory is to analyze a series of multitemporal stereo orthophotos from the Bavarian Forest National Park (BFNP) to create surface models. The final products can be subtracted from the available LiDAR-based DTMs to provide canopy height models (CHM) representing the actual tree heights. The final aim of this analysis is to enable a further generation of multitemporal forest structure data that will be sued for a change detection of forest structural attributes as affected by natural disturbances.

read more news:

EAGLE Daria did her internship in Bergen

EAGLE Daria did her internship in Bergen

Our EAGLE student Daria recently wrapped up an internship at the University of Bergen in the Remote Sensing research group. With the support of her supervisor, Dr. Benjamin Abreu Robson, she got to work on the Jostedalsbreen glacier using drone and satellite data. Her...

EAGLE alumni Henrik Fisser presenting polar research

EAGLE alumni Henrik Fisser presenting polar research

Our EAGLE alumni Henrik Fisser recently visited us after a research stay in the United States. He is now pursuing his PhD at UiT The Arctic University of Norway, specifically in the Earth Observation Department. UiT is renowned for its cutting-edge research in Earth...

Orfeo Toolbox covered in our courses

Orfeo Toolbox covered in our courses

As part of our international EAGLE MSc courses, we include comprehensive training on the powerful Orfeo Toolbox (OTB) software. OTB is an open-source library for processing remote sensing imagery, offering advanced algorithms for tasks such as image segmentation,...

Internship network fair

Internship network fair

Today, we provided our international Eagle MSc students with access to the professional network of our EORC to assist them in finding suitable internships or MSc thesis topics. Several individuals offered their networks, including Hannes Taubenboeck for georisk and...

GRASS software for Earth Observation

GRASS software for Earth Observation

In our international EAGLE MSc program, we go beyond the limitations of a single programming language or software environment. Our goal is to empower students to leverage a wide range of scientific tools effectively. They gain insight into the strengths and...