Shape and motion from image streams under orthography: a factorization method
International Journal of Computer Vision
A Paraperspective Factorization Method for Shape and Motion Recovery
IEEE Transactions on Pattern Analysis and Machine Intelligence
In Defense of the Eight-Point Algorithm
IEEE Transactions on Pattern Analysis and Machine Intelligence
Accurate and simple geometric calibration of multi-camera systems
Signal Processing
Monitoring Activities from Multiple Video Streams: Establishing a Common Coordinate Frame
IEEE Transactions on Pattern Analysis and Machine Intelligence
N-Ocular stereo for real-time human tracking
Panoramic vision
Computer Vision: A Modern Approach
Computer Vision: A Modern Approach
A Factorization Based Algorithm for Multi-Image Projective Structure and Motion
ECCV '96 Proceedings of the 4th European Conference on Computer Vision-Volume II - Volume II
Structure from Many Perspective Images with Occlusions
ECCV '02 Proceedings of the 7th European Conference on Computer Vision-Part II
Self-Calibration of a Camera from Video of a Walking Human
ICPR '02 Proceedings of the 16 th International Conference on Pattern Recognition (ICPR'02) Volume 1 - Volume 1
A Theory of Catadioptric Image Formation
ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
Video arrays for real-time tracking of person, head, and face in an intelligent room
Machine Vision and Applications - Special issue: Omnidirectional vision and its applications
Multimedia surveillance systems
Proceedings of the third ACM international workshop on Video surveillance & sensor networks
Surveillance camera scheduling: a virtual vision approach
Proceedings of the third ACM international workshop on Video surveillance & sensor networks
Collaborative sensing via local negotiations in ad hoc networks of smart cameras
Proceedings of the Fourth ACM/IEEE International Conference on Distributed Smart Cameras
State of the art of smart homes
Engineering Applications of Artificial Intelligence
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Reconfigurable arrays of omnidirectional cameras are useful for applications where multiple cameras working together are to be deployed at a short notice. This paper addresses the important issue of calibration of such arrays in terms of the relative camera positions and orientations. The location of a one-dimensional object moving parallel to itself, such as a moving person is used to establish correspondences between multiple cameras. In such case, the non-linear 3-D problem of calibration can be approximated by a 2-D problem in plan view. This enables an initial solution using factorization method. A non-linear optimization stage is then used to account for the approximations, as well as to minimize the geometric error between the observed and projected omni pixel coordinates. Experimental results with simulated and real data illustrate the effectiveness of the method.