23 October 2014 Bore-sight calibration of the profile laser scanner using a large size exterior calibration field
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Abstract
The bore-sight calibration procedure and results of a profile laser scanner using a large size exterior calibration field is presented in the paper. The task is a part of Autonomous Mapping Airship (AMA) project which aims to create s surveying system with specific properties suitable for effective surveying of medium-wide areas (units to tens of square kilometers per a day). As is obvious from the project name an airship is used as a carrier. This vehicle has some specific properties. The most important properties are high carrying capacity (15 kg), long flight time (3 hours), high operating safety and special flight characteristics such as stability of flight, in terms of vibrations, and possibility to flight at low speed. The high carrying capacity enables using of high quality sensors like professional infrared (IR) camera FLIR SC645, high-end visible spectrum (VIS) digital camera and optics in the visible spectrum and tactical grade INSGPS sensor iMAR iTracerRT-F200 and profile laser scanner SICK LD-LRS1000. The calibration method is based on direct laboratory measuring of coordinate offset (lever-arm) and in-flight determination of rotation offsets (bore-sights). The bore-sight determination is based on the minimization of squares of individual point distances from measured planar surfaces.
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Bronislav Koska, Tomáš Křemen, Martin Štroner, "Bore-sight calibration of the profile laser scanner using a large size exterior calibration field", Proc. SPIE 9245, Earth Resources and Environmental Remote Sensing/GIS Applications V, 92451Q (23 October 2014); doi: 10.1117/12.2067451; https://doi.org/10.1117/12.2067451
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