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Mirror Identification and Correction of 3D Point Clouds : Volume Xl-5/W4, Issue 1 (18/02/2015)

By Käshammer, P.-f.

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Book Id: WPLBN0004015460
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Mirror Identification and Correction of 3D Point Clouds : Volume Xl-5/W4, Issue 1 (18/02/2015)  
Author: Käshammer, P.-f.
Volume: Vol. XL-5/W4, Issue 1
Language: English
Subject: Science, Isprs, International
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus Publications
Publication Date:
Publisher: Copernicus Publications, Göttingen, Germany
Member Page: Copernicus Publications


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Käshammer, P., & Nüchter, A. (2015). Mirror Identification and Correction of 3D Point Clouds : Volume Xl-5/W4, Issue 1 (18/02/2015). Retrieved from

Description: Informatics VII – Robotics and Telematics, Julius-Maximilians University Würzburg, Germany. In terrestrial laser scanning (TLS), the surface geometry of objects is scanned by laser beams and recorded digitally. This produces a discrete set of scan points, commonly referred to as a point cloud. The coordinates of the scan points are determined by measuring the angles and the time-of-flight relative to the origin (scanner position). However, if it comes to mirror surfaces laser beams are fully reflected, due to the high reflectivity. Mirrors do not appear in the point cloud at all. Instead, for every reflected beam, a incorrect scan point is created behind the actual mirror plane. Consequently, problems arise in multiple derived application fields such as 3D virtual reconstruction of complex architectures. The paper presents a new approach to automatically detect framed rectangular mirrors with known dimensions and to correct the 3D point cloud, using the calculated mirror plane.



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