CALIBRATION OF LARGE CAMERA NETWORKS
First Claim
1. A method comprising:
- sensing a calibration object with a plurality of directional sensor nodes;
exchanging measurement data regarding the calibration object between the plurality of directional sensor nodes;
estimating an initial set of calibration parameters for each of the plurality of directional sensor nodes in response to the exchanged measurement data;
exchanging the initial sets of calibration parameters between the plurality of directional sensor nodes; and
estimating an updated set of calibration parameters for each of the plurality of directional sensor nodes in response to the exchanged initial sets of calibration parameters.
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Abstract
The present disclosure relates to a sensor network including a plurality of nodes, each node having a directional sensor, a communication module, and a processor configured to receive local measurements of a calibration object from the directional sensor, receive additional measurements of the calibration object from neighboring nodes via the communication module, estimate an initial set of calibration parameters in response to the local and additional measurements, receive additional sets of calibration parameters from neighboring nodes via the communication module, and recursively estimate an updated set of calibration parameters in response to the additional sets of calibration parameters. Additional systems and methods for calibrating a large network of camera nodes are disclosed.
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Citations
39 Claims
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1. A method comprising:
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sensing a calibration object with a plurality of directional sensor nodes; exchanging measurement data regarding the calibration object between the plurality of directional sensor nodes; estimating an initial set of calibration parameters for each of the plurality of directional sensor nodes in response to the exchanged measurement data; exchanging the initial sets of calibration parameters between the plurality of directional sensor nodes; and estimating an updated set of calibration parameters for each of the plurality of directional sensor nodes in response to the exchanged initial sets of calibration parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. One or more tangible, machine-readable media comprising a plurality of instructions that, in response to being executed, result in a plurality of directional sensor nodes:
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sensing a calibration object; exchanging measurement data regarding the calibration object between the plurality of directional sensor nodes; estimating an initial set of calibration parameters for each of the plurality of directional sensor nodes in response to the exchanged measurement data; exchanging the initial sets of calibration parameters between the plurality of directional sensor nodes; and estimating an updated set of calibration parameters for each of the plurality of directional sensor nodes in response to the exchanged initial sets of calibration parameters. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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18. A sensor network comprising:
a plurality of nodes, each node having a directional sensor, a communication module, and a processor configured to receive local measurements of a calibration object from the directional sensor, receive additional measurements of the calibration object from neighboring nodes via the communication module, estimate an initial set of calibration parameters in response to the local and additional measurements, receive additional sets of calibration parameters from neighboring nodes via the communication module, and recursively estimate an updated set of calibration parameters in response to the additional sets of calibration parameters. - View Dependent Claims (19, 20, 21, 22, 23, 24)
Specification