Automatic camera calibration and geo-registration using objects that provide positional information
First Claim
Patent Images
1. A computer-readable medium comprising software for video processing, which when executed by a computer system, cause the computer system to perform operations comprising a method of:
- receiving a video sequence of a field of view within an environment;
detecting targets in the video sequence;
receiving target geo-positional information transmitted by a geo-positional sensor; and
determining correspondences between the targets detected in the video sequence and the target geo-positional information.
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Abstract
A video sequence of a field of view within an environment is received. Targets are detected in the video sequence. Target geo-positional information is received. Correspondences between the targets detected in the video sequence and the target geo-positional information are determined and used to calibrate the camera and to geo-register a field of view of the camera.
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Citations
45 Claims
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1. A computer-readable medium comprising software for video processing, which when executed by a computer system, cause the computer system to perform operations comprising a method of:
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receiving a video sequence of a field of view within an environment; detecting targets in the video sequence; receiving target geo-positional information transmitted by a geo-positional sensor; and determining correspondences between the targets detected in the video sequence and the target geo-positional information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer-based system to perform a method for video processing, the method comprising:
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receiving a video sequence of a field of view within an environment; detecting targets in the video sequence; receiving target geo-positional information transmitted by a geo-positional sensor; and determining correspondences between the targets detected in the video sequence and the target geo-positional information. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for video processing, comprising:
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receiving a video sequence of a field of view within an environment; detecting targets in the video sequence; receiving target geo-positional information transmitted by a geo-positional sensor; and determining correspondences between the targets detected in the video sequence and the target geo-positional information. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A system to perform video processing of a video sequence generated by at least one video camera having a field of view within an environment, comprising at least one of:
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a correspondence module to determine correspondences between targets detected in the video sequence and corresponding target geo-positional information transmitted by a geo-positional sensor; a calibration and geo-registration module to determine a relationship between the video camera and geo-positional sensor and geo-register the video camera based at least on the determined correspondences;
ora metric rules and video understanding module to obtain measurement information regarding at least one of the environment or target detected in the video sequence. - View Dependent Claims (45)
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Specification