Laser Scanner Accuracy – How Has it Changed Since 2003?

This is a very interesting, basic research paper on the state-of-the-art in laser scanner accuracy circa the early 2000’s. The basic physics and electronics have not changed so I think you will find it an important reference, as well as a look back at the beginning of laser scanning.

The 2003 paper Investigating Laser Scanning Accuracy, by Wolgang Boehler and Andreas Marbs reports on a number of tests performed to investigate the quality of measurements obtained with laser scanners.

From the Abstract

The standardized tests, carried out since 2003, also allow a comparison between instruments of different manufacturers for the first time. The test procedures include scans of plane surfaces of different reflectivity in different ranges to obtain information about the
noise of the range measurements and about systematic offsets caused by different materials.

Several test fields using white spheres as targets have been installed to get information
about the accuracy of distances in scanning direction and across. Due to different
angular increments and spot sizes, not all 3D scanners have the same abilities to resolve
small object details. 3D scanners are also known to produce errors at edges. Both phenomena are tested with appropriate targets.

Photo of The Team that Studies Laser Scanner Accuracy

The Team that Studies Laser Scanner Accuracy

The Institute for Spatial Information and Measurement – i3mainz the University Mainz is engaged in research and development projects as well as technology transfer, particularly on space-related areas of 3D measurement , image analysis , spatial data infrastructures , optical technologies , positioning and navigation , Semantic Modeling , Spatial Humanities and visualization .

The institute was founded in February 1998. The organization of the institute is in the hands of several professors of the University of Mainz , who also lead the respective projects at the same time. The vast majority of these projects are interdisciplinary and are handled in close cooperation with public or private cooperation partners.

If you want to get the absolutely proper understanding of 3D measurement  and related applications I would have this institution on the list.

For more information on the University of Mainz click here. 

Note – If you are using Chrome you can click on the translate link and wholla, it is in English. That is so cool!

 

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