XVIIIth Congress: XVIIIth Congress

kraus, karl; waldhäusl, peter

Bibliographic data

Multivolume work

Persistent identifier:: 1667435949

Title:: XVIIIth Congress

Sub title:: Vienna, Austria 1996

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667435949

Language:: English

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1667437070

Title:: XVIIIth Congress

Scope:: 230 Seiten

Year of publication:: 1996

Place of publication:: Vienna

Publisher of the original:: Austrian Society of Surveying and Geoinformation

Identifier (digital):: 1667437070

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(31,B1)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist anhand des Copyrightjahrs ermittelt.

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Kraus, Karl; Waldhäusl, Peter

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 18., 1996, Wien; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Primary Data Acquisition

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: THE GEOMETRIC DESIGN OF A VEHICLE BASED 3 LINE CCD CAMERA SYSTEM FOR DATA ACQUISITION OF 3D CITY MODELS Markus Maresch, Peter Duracher

Document type:: Multivolume work

Structure type:: Chapter

having ig real ination Jre re- acy of acy of 0,1°C. metric sed for | lower THE GEOMETRIC DESIGN OF A VEHICLE BASED 3 LINE CCD CAMERA SYSTEM FOR DATA ACQUISITION OF 3D CITY MODELS Markus Maresch, Peter Duracher Institute for Computer Graphics Technical University Graz A-8010 Graz, AUSTRIA email: {maresch,duracher}@icg.tu-graz.ac.at WWW: http://www.icg.tu-graz.ac.at/^[maresch,duracher] Commision |, Working Group 1/3 KEY WORDS: linear CCD array, facade recording, 3D city model, motion disturbance, exterior orientation. ABSTRACT This paper presents the geometric design of a new approach for an automatic vehicle based recording of building facades. It is based on the use of 3 partially inclined and vertical linear CCD arrays as the primary data sources. Other sensors support the retrieval of the exterior orientation. This mobile camera is used for data acquisition of the geometric model of building facades and the recording of high resolution photo texture. The requirements and constraints for this system and the theoretical background for the effect of motion disturbance due to sensor motion are discussed, and lead to the arguments for the development of the proposed system. We show recordings from a line sensor and discuss preliminary results in automatic motion detection. Methods for the creation of normalized images are explained. The major advantages of the proposed system of conventional area imaging technologies are the possibility of continuous recording, high resolution images, acceptable amount of data and the fulfilled requirements for the data acquisition of photo-realistic textured 3D city models. Our approach offers an inexpensive data acquisition method for generating photo-realistic textured city models and provides good raw data for reconstruction of a geometric model of a building's facade. KURZFASSUNG In diesem Bericht beschreiben wir das geometrische Design einer neuen Methode zur automatischen fahrzeugbasierten Auf- nahme von Gebàudefassaden. Die Kamera basiert auf 3 teilweise vertikal orientierten CCD Zeilen als Primársensoren, sowie weiteren Sensoren, welche die Rekonstruktion der àuBeren Orientierung unterstützen. Diese mobile Kamera wird für die Datenerfassung des Geometriemodels von Gebäudefassaden und der Aufnahme von Phototextur mit hoher Auflósung ver- wendet. Die Anforderungen an dieses System, die Limitierung, sowie der theoretische Hintergrund für die Auswirkung von Bewegungsstórungen auf Grund der Sensorbewegung werden behandelt, und führen zu Argumenten für die Entwicklung des vorgestellten Systems. Es werden Aufnahmen mit einem Zeilensensor gezeigt und erste Ergebnisse einer automatischen Bewe- gungserkennung dargestellt. Methoden zur Erzeugung von Normalbildern werden erklärt. Die größten Vorteile des vorgestellten Systems gegenüber herkömmlicher flächenbasierter Aufnahmeverfahren stellen die Möglichkeit einer kontinuierlichen Aufnahme, hohe Auflösung der Zeilen und ein vertretbares Datenvolumen dar. Unser Ansatz bietet eine billige Aufnahmemethode zur Erzeugung photorealistisch texturierter Stadtmodelle und liefert gute Rohdaten für die Rekonstruktion des Geometriemodells von Gebäudefassaden. 1 INTRODUCTION 1.1 Photo-realistic textured 3D city models Photo-realistic textured 3D city models offer new and exciting possibilities for city planning, interactive visualization of the dataset, simulation, training and effective data manipulation [GMB95]. Input-data for city models consist, among others, of 2D data from geographical information systems (GIS), digital terrain models, aerial photographs and images of facades taken from street level. The fusion of GIS data and data derived from aerial photographs results in a coarse model, the so-called building box [GMB95]. 1.2 Related work Compared to methods of [Fra95], using a camera with fish-eye lens on top of a car, [Koc93], [Koc95] using video cameras, Figure 1: Snapshot of a photo-realistic textured 3D and [AB95] using a combination of Video, GPS and odomet- city model ("Eisenes Tor", Graz, Austria). The fusion ric sensors, we propose a system based on line geometry. of data derived from aerial photographs and images of The latter technology and the use of linear CCD lines in satel- facades taken from street level can be observed. lite scanners is described in [ORS* 92], [Hof86b], [WSS94], [DLW86], [Ebn92] in great detail. 121 International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B1. Vienna 1996

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