Relative range camera calibration

Details Relative range camera calibration Relative range camera calibration

2008-01-22

2008-01-22

Lau, Tung S. (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Position measurement

Reexamination Certificate

active

11382022

ABSTRACT:
Method and system for measuring a relative position and orientation of range cameras using a movement of an object within a scene. In general, the method and system determine the relative pose between two cameras by measuring a path the movement of the object makes within a scene and calculating transformation parameters based on these measurements. These transformation parameters are used to determine the relative position of each camera with respect to a base camera. The system and method include other novel features, such as a data synchronization feature that uses a time offset between cameras to obtain the transformation parameters, and a technique that improves the robustness and accuracy of solving for the transformation parameters, and an interpolation process that interpolates between sampled points if there is no data at a particular instant in time.

REFERENCES:
patent: 5905568 (1999-05-01), McDowell et al.
patent: 6839081 (2005-01-01), Iijima et al.
http://www.answers.com/topic/least-squares, p. 1-4.
E. Kruse and F.M. Wahl, Camera-based-observation of obstacle motions to derive statistical data for mobile robot motion planning, IEEE 1998, p. 662-667.
http://www.m-w.com/dictionary/interpolate, p. 1.

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