ViRoom - Low Cost Synchronized Multicamera System and Its Self-calibration

This paper presents a multicamera Visual Room (ViRoom). It is constructed from low-cost digital cameras and standard computers running on Linux. Software based synchronized image capture is introduced. A fully automatic self-calibration method for multiple cameras and without any known calibration object is proposed and verified by 3D reconstruction experiments. This handy calibration allows an easy reconfiguration of the setup. Aside from the computers which are usually already available, such a synchronized multicamera setup with six or seven cameras costs less than 1000 USD.

[1]  Robert C. Bolles,et al.  Random sample consensus: a paradigm for model fitting with applications to image analysis and automated cartography , 1981, CACM.

[2]  Takeo Kanade,et al.  Virtualized reality: concepts and early results , 1995, Proceedings IEEE Workshop on Representation of Visual Scenes (In Conjunction with ICCV'95).

[3]  Peter F. Sturm,et al.  A Factorization Based Algorithm for Multi-Image Projective Structure and Motion , 1996, ECCV.

[4]  Barry Brumitt,et al.  EasyLiving: Technologies for Intelligent Environments , 2000, HUC.

[5]  Mohan M. Trivedi,et al.  Activity monitoring and summarization for an intelligent meeting room , 2000, Proceedings Workshop on Human Motion.

[6]  Alex Pentland,et al.  Looking at People: Sensing for Ubiquitous and Wearable Computing , 2000, IEEE Trans. Pattern Anal. Mach. Intell..

[7]  Bernhard P. Wrobel,et al.  Multiple View Geometry in Computer Vision , 2001 .

[8]  Mubarak Shah,et al.  Human tracking in multiple cameras , 2001, Proceedings Eighth IEEE International Conference on Computer Vision. ICCV 2001.

[9]  Sun Ji-zhou.  Creating 3D Models with Uncalibrated Cameras , 2001 .

[10]  Andrew Zisserman,et al.  Multiple view geometry in computer visiond , 2001 .

[11]  Mohan M. Trivedi,et al.  Active Camera Networks and Semantic Event Databases for Intelligent Environments , 2002 .

[12]  Tomás Pajdla,et al.  Structure from Many Perspective Images with Occlusions , 2002, ECCV.

[13]  Reinhard Koch,et al.  Self-Calibration and Metric Reconstruction Inspite of Varying and Unknown Intrinsic Camera Parameters , 1999, International Journal of Computer Vision.