Unfolding WWII Heritages with Airborne and Ground-Based Laser Scanning

Principles of airborne laser scanning

Figure 1 represents the paradigm of laser scanning. A paradigm as generally known focuses on the basics and ignores minor matters. The paradigm of laser scanning can be characterised in the following way: • A bundle of 3D-vectors, positioned by GPS and oriented by IMU • Active sensors Figure 2 illustrates the paradigm of Stereo-Photogrammetry and can be characterized by: • 2 directed bundles, w...

Airborne laser scanning: basic relations and formulas

An overview of basic relations and formulas concerning airborne laser scanning is given. They are divided into two main parts, the first treating lasers and laser ranging, and the second one referring to airborne laser scanning. A separate discussion is devoted to the accuracy of 3D positioning and the factors influencing it. Examples are given for most relations, using typical values for ALS a...

Assessment of standing wood and fiber quality using ground and airborne laser scanning: a review

Simulating Sampling Efficiency in Airborne Laser Scanning Based Forest Inventory

A simple simulator was developed to test whether airborne laser scanning can be used as a strip sampling tool for forest inventory purposes. The simulator is based on the existing two stages, grid based laser inventory procedure. A population of trees was created using an existing forest stand structure generator. Each tree was represented by means of its 3D-crown model derived from airborne la...

Experiences with Airborne and Ground-based Polarimetry

Polarimetry in the far-infrared and submillimeter has been valuable in tracing magnetic fields in bright Galactic Clouds. We discuss the techniques we have developed and trends we have found in polarization vs column density, and vs wavelength. The polarization spectrum has proven to be more interesting than had been anticipated. It is potentially valuable in explaining grain alignment and in c...