As it is widely known documentation is an important issue within the tasks of conservation, prese... more As it is widely known documentation is an important issue within the tasks of conservation, preservation and restoration of Cultural Heritage objects. In this context high-tech measuring methods which, at the same time, are located in the low-cost price segment, are of special interest. In this paper a special solution is presented, which preserves the potential of state-of-the-art photogrammetry and
Videometrics, Range Imaging, and Applications XII; and Automated Visual Inspection, 2013
ABSTRACT The modeling of real-world scenarios through capturing 3D digital data has been proven a... more ABSTRACT The modeling of real-world scenarios through capturing 3D digital data has been proven applicable in a variety of industrial applications, ranging from security, to robotics and to fields in the medical sciences. These different scenarios, along with variable conditions, present a challenge in discovering flexible appropriate solutions. In this paper, we present a novel approach based on a human cognition model to guide processing. Our method turns traditional data-driven processing into a new strategy based on a semantic knowledge system. Robust and adaptive methods for object extraction and identification are modeled in a knowledge domain, which has been created by purely numerical strategies. The goal of the present work is to select and guide algorithms following adaptive and intelligent manners for detecting objects in point clouds. Results show that our approach succeeded in identifying the objects of interest while using various data types.
Interoperability between Distributed Systems and Web-Services Composition (9781605660264): Christ... more Interoperability between Distributed Systems and Web-Services Composition (9781605660264): Christophe Nicolle: Book Chapters.
Abstract—This paper presents a knowledge-based detection of objects approach using the OWL ontolo... more Abstract—This paper presents a knowledge-based detection of objects approach using the OWL ontology language, the Semantic Web Rule Language, and 3D processing built-ins aiming at combining geometrical analysis of 3D point clouds and specialist's knowledge. ...
This paper presents a practical projector-camera based 3D object modelling system developed in ou... more This paper presents a practical projector-camera based 3D object modelling system developed in our laboratories. The hardware consists of a computer, a video projector and at least two digital cameras. The D modelling of a real object is realized automatically by applying an adaptive spot projection technique. For each spot in the first image, an algorithm is applied to find its correspondence in the second one, thus a cloud of 3D points is finally generated by triangulation, which is necessary for the calculation of the geometry of the object. In the case that the surface of the object is irregular, an iterative optimization process is lanced to improve the D reconstruction speed and the precision of the reconstructed model.
Zusammenfassung Im Zuge der fortschreitenden Leistungssteigerungen von Computerhard-und Software ... more Zusammenfassung Im Zuge der fortschreitenden Leistungssteigerungen von Computerhard-und Software fin-den sich auch auf dem Gebiet der Geowissenschaften in wachsendem Maße Anwendungen, in denen die Dokumentation und Analyse von Geoobjekten nicht mehr allein in-situ am Objekt vorgenommen wird, sondern durch virtuelle Modelle und deren Inspektion am Rechner ergänzt oder sogar ersetzt wird. Die hier präsentierte Arbeit zeigt, wie auf Basis von rein digitalen Daten und weitestgehend automatisiert detaillierte digitale Objektmodelle erzeugt und für die realistische interaktive Visualisierung im Computer aufbereitet werden können. Die Verfahrensweise wird am konkreten Beispiel eines entwicklungsgeschichtlich bedeutsamen Geotops dokumentiert.
As it is widely known documentation is an important issue within the tasks of conservation, prese... more As it is widely known documentation is an important issue within the tasks of conservation, preservation and restoration of Cultural Heritage objects. In this context high-tech measuring methods which, at the same time, are located in the low-cost price segment, are of special interest. In this paper a special solution is presented, which preserves the potential of state-of-the-art photogrammetry and
Videometrics, Range Imaging, and Applications XII; and Automated Visual Inspection, 2013
ABSTRACT The modeling of real-world scenarios through capturing 3D digital data has been proven a... more ABSTRACT The modeling of real-world scenarios through capturing 3D digital data has been proven applicable in a variety of industrial applications, ranging from security, to robotics and to fields in the medical sciences. These different scenarios, along with variable conditions, present a challenge in discovering flexible appropriate solutions. In this paper, we present a novel approach based on a human cognition model to guide processing. Our method turns traditional data-driven processing into a new strategy based on a semantic knowledge system. Robust and adaptive methods for object extraction and identification are modeled in a knowledge domain, which has been created by purely numerical strategies. The goal of the present work is to select and guide algorithms following adaptive and intelligent manners for detecting objects in point clouds. Results show that our approach succeeded in identifying the objects of interest while using various data types.
Interoperability between Distributed Systems and Web-Services Composition (9781605660264): Christ... more Interoperability between Distributed Systems and Web-Services Composition (9781605660264): Christophe Nicolle: Book Chapters.
Abstract—This paper presents a knowledge-based detection of objects approach using the OWL ontolo... more Abstract—This paper presents a knowledge-based detection of objects approach using the OWL ontology language, the Semantic Web Rule Language, and 3D processing built-ins aiming at combining geometrical analysis of 3D point clouds and specialist's knowledge. ...
This paper presents a practical projector-camera based 3D object modelling system developed in ou... more This paper presents a practical projector-camera based 3D object modelling system developed in our laboratories. The hardware consists of a computer, a video projector and at least two digital cameras. The D modelling of a real object is realized automatically by applying an adaptive spot projection technique. For each spot in the first image, an algorithm is applied to find its correspondence in the second one, thus a cloud of 3D points is finally generated by triangulation, which is necessary for the calculation of the geometry of the object. In the case that the surface of the object is irregular, an iterative optimization process is lanced to improve the D reconstruction speed and the precision of the reconstructed model.
Zusammenfassung Im Zuge der fortschreitenden Leistungssteigerungen von Computerhard-und Software ... more Zusammenfassung Im Zuge der fortschreitenden Leistungssteigerungen von Computerhard-und Software fin-den sich auch auf dem Gebiet der Geowissenschaften in wachsendem Maße Anwendungen, in denen die Dokumentation und Analyse von Geoobjekten nicht mehr allein in-situ am Objekt vorgenommen wird, sondern durch virtuelle Modelle und deren Inspektion am Rechner ergänzt oder sogar ersetzt wird. Die hier präsentierte Arbeit zeigt, wie auf Basis von rein digitalen Daten und weitestgehend automatisiert detaillierte digitale Objektmodelle erzeugt und für die realistische interaktive Visualisierung im Computer aufbereitet werden können. Die Verfahrensweise wird am konkreten Beispiel eines entwicklungsgeschichtlich bedeutsamen Geotops dokumentiert.
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