Self-calibration for a catadioptric camera
AssigneeMicrosoft Corporation
InventorSing Bing Kang
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AssigneeMicrosoft Corporation
InventorSing Bing Kang
Estimating the term…
A method and a system for self-calibrating a wide field-of-view camera (such as a catadioptric camera) using a sequence of omni-directional images of a scene obtained from the camera. The present invention uses the consistency of pairwise features tracked across at least a portion of the image collection and uses these tracked features to determine unknown calibration parameters based on the characteristics of catadioptric imaging. More specifically, the self-calibration method of the present invention generates a sequence of omni-directional images representing a scene and tracks features across the image sequence. An objective function is defined in terms of the tracked features and an error metric (an image-based error metric in a preferred embodiment). The catadioptric imaging characteristics are defined by calibration parameters, and determination of optimal calibration parameters is accomplished by minimizing the objective function using an optimizing technique.
A method for automatically calibrating a wide field-of-view camera, comprising:
A computer-implemented process stored in a computer memory for causing a computer to self-calibrate a catadioptric camera, comprising;
A computer-readable medium having stored thereon computer-executable instructions for causing a computing device to calibrate a catadioptric camera, comprising:
Dependencies are inferred from the claim text.