System structure and calibration models of intelligent photogrammetron |
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Authors: | Pan Heping Zhang Chunsen |
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Institution: | School of Remote Sensing and Information Engineering , Wuhan University , Wuhan , China |
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Abstract: | This paper describes the structure, geometric model and geometric calibration of Photogrammetron I—the first type of photogrammetron which is designed to be a coherent stereo photogrammetric system in which two cameras are mounted on a physical base but driven by an intelligent agent architecture. The system calibration is divided into two parts: the in-lab calibration determines the fixed parameters in advance of system operation, and the in-situ calibration keeps tracking the free parameters in real-time during the system operation. In a video surveillance set-up, prepared control points are tracked in stereo image sequences, so that the free parameters of the system can be continuously updated through iterative bundle adjustment and Kalman filtering. |
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Keywords: | photogrammetron intelligent photogrammetry video surveillance head-eye system image sequence tracking bundle adjustment Kalman filtering |
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