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Knowledge-based Object Detection in Laser Scanning Point Clouds : Volume Xxxix-b3, Issue 1 (24/07/2012)

By Boochs, F.

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Book Id: WPLBN0004016573
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Knowledge-based Object Detection in Laser Scanning Point Clouds : Volume Xxxix-b3, Issue 1 (24/07/2012)  
Author: Boochs, F.
Volume: Vol. XXXIX-B3, 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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Marbs, A., Karmacharya, A., & Boochs, F. (2012). Knowledge-based Object Detection in Laser Scanning Point Clouds : Volume Xxxix-b3, Issue 1 (24/07/2012). Retrieved from

Description: i3mainz, Insitute for Spatial Information and Surveying Technology, University of Applied Sciences Mainz, Lucy-Hillebrand-Str. 2, 55128 Mainz, Germany. Object identification and object processing in 3D point clouds have always posed challenges in terms of effectiveness and efficiency. In practice, this process is highly dependent on human interpretation of the scene represented by the point cloud data, as well as the set of modeling tools available for use. Such modeling algorithms are data-driven and concentrate on specific features of the objects, being accessible to numerical models. We present an approach that brings the human expert knowledge about the scene, the objects inside, and their representation by the data and the behavior of algorithms to the machine. This “understanding” enables the machine to assist human interpretation of the scene inside the point cloud. Furthermore, it allows the machine to understand possibilities and limitations of algorithms and to take this into account within the processing chain. This not only assists the researchers in defining optimal processing steps, but also provides suggestions when certain changes or new details emerge from the point cloud. Our approach benefits from the advancement in knowledge technologies within the Semantic Web framework. This advancement has provided a strong base for applications based on knowledge management. In the article we will present and describe the knowledge technologies used for our approach such as Web Ontology Language (OWL), used for formulating the knowledge base and the Semantic Web Rule Language (SWRL) with 3D processing and topologic built-ins, aiming to combine geometrical analysis of 3D point clouds, and specialists’ knowledge of the scene and algorithmic processing.



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