ProjectComputerVisionDiscrepancyCheck

Discrepancy Check Using Augmented Reality Scientific Director: Nassir Navab Contact Person(s): Jürgen Sotke In industrial collaboration with: Mirko Appel, Ralf Keller

Keywords: Computer Vision, Industrial Augmented Reality

Abstract

Construction companies employ CAD software during the planning phase but what is finally built often does not match the original plan. The procedure of validating the model is called 'discrepancy check'. The system proposed here allows the user to easily obtain an augmentation in order to find differences between the planned 3D model and the built items. The main difference to previous body of work in this field is the emphasis on usability and acceptance of the solution. While standard image-based solutions use markers or rely on a 'perfect' 3D model to find the pose of the camera; our software uses Anchor-Plates. Anchor-Plates are rectangular structures installed on walls and ceiling in the majority of industrial edifices. We are using them as landmarks because they are the most reliable components often used as reference coordinates by constructors. Furthermore; for real industrial applications; they are the most suitable solutions in terms of general applicability. For this project we try to bring a innovative solution to the discrepancy check procedure by applying Augmented Reality.

Pictures

Figure 1: Registered image with the planned CAD model.

Figure 2: A closed up of the Fig. 1

Publications

2009
	P. Georgel, S. Benhimane, J. Sotke, N. Navab Recovering the Full Pose from a Single Keyframe IEEE Workshop on Applications of Computer Vision (WACV) , Snowbird, Utah, USA, December 7-8 2009 (bib)
	P. Georgel, P. Schroeder, N. Navab Navigation Tools for Augmented CAD Viewing IEEE Computer Graphic and Application (CGA), special issue on 3D User Interfaces (bib)
	P. Georgel, S. Benhimane, J. Sotke, N. Navab Photo-based Industrial Augmented Reality Application Using a Single Keyframe Registration Procedure The 8th IEEE and ACM International Symposium on Mixed and Augmented Reality, Orlando, US, Oct. 19 - 22, 2009 (bib)
2008
	P. Georgel, P. Schroeder, S. Benhimane, M. Appel, N. Navab How to Augment the Second Image? Recovery of the Translation Scale in Image to Image Registration The 7th IEEE and ACM International Symposium on Mixed and Augmented Reality, Cambridge, UK, Sept. 15 - 18, 2008. (bib)
2007
	P. Georgel, P. Schroeder, S. Benhimane, S. Hinterstoisser, M. Appel, N. Navab An Industrial Augmented Reality Solution For Discrepancy Check Proceedings of the 6th International Symposium on Mixed and Augmented Reality (ISMAR), Nara, Japan, Nov. 2007 (bib)

Team

Contact Person(s)

M.Sc. Juergen Sotke

Working Group

M.Sc. Juergen Sotke

Prof. Dr. Nassir Navab

Pierre Georgel

Dipl.-Inf. Univ. Pierre Schroeder

Dr. Eng. Selim Benhimane

Dr. Stefan Hinterstoisser

Alumni

Andre Aichert

Sumit Paranjape

Xavier Fernandez

Location

Technische Universität München Institut für Informatik / I16 Boltzmannstr. 3 85748 Garching bei München Tel.: +49 89 289-17058 Fax: +49 89 289-17059

Visit our lab at Garching.



internal project page

Please contact Jürgen Sotke for available student projects within this research project.