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US 2005/0031329 A1Published application
Relative range camera calibration
AssigneeMicrosoft Corporation
InventorJohn Krumm
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AssigneeMicrosoft Corporation
InventorJohn Krumm
Estimating the term…
A method and a system for measuring a relative position and orientation of range cameras using a movement of an object within a scene. In general, the present invention determines 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. In a preferred embodiment, the present invention also includes other novel features such as a data synchronization feature that uses a time offset between cameras to obtain the transformation parameters. In addition, the present invention includes 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. Further, the present invention includes a system for determining a relative position and orientation of range cameras using spatial movement that incorporates the method of the present invention.
A method of determining a relative position and orientation between a base camera and a non-base camera, comprising:
3-11. (canceled)
A method of measuring a relative pose between two cameras, comprising:
A method of calibrating a first and a second range camera, comprising:
A calibration system for calibrating range cameras, comprising:
The calibration system of claim 26, wherein the data synchronizer uses a time offset value to synchronize the data and the time offset value is used by the error minimization processor to compute the transformation parameter.
The calibration system of claim 26, further comprising a coordinate selector that can select a base coordinate system for use in the calculation of the transformation parameter.
Dependencies are inferred from the claim text.