Methods and apparatus to count people in images
First Claim
1. A method, comprising:
- Maintaining, with a processor, a history of instances in which a person is detected by a first image sensor and by a second sensor different than the first image sensor at approximately a same time, respective ones of the instances including;
a first coordinate at which a first person was detected via the first image sensor; and
a second coordinate at which the first person was detected via the second image sensor; and
in response to first image data captured by the first image sensor including a second person at the first coordinate, determining, with a processor, whether second image data captured by the second image sensor includes the second person without comparing the first image data to the second image data; and
eliminating, with the processor, the second person from a count of people.
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Abstract
Methods and apparatus to count people in images are disclosed. An example method includes maintaining a history of instances in which a person is detected by a first image sensor and by a second sensor different than the first image sensor at approximately a same time, respective ones of the instances including a first coordinate at which a first person was detected via the first image sensor, and a second coordinate at which the first person was detected via the second image sensor; and, in response to first image data captured by the first image sensor including a second person at the first coordinate, determining whether second image data captured by the second image sensor includes the second person without comparing the first image data to the second image data.
52 Citations
17 Claims
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1. A method, comprising:
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Maintaining, with a processor, a history of instances in which a person is detected by a first image sensor and by a second sensor different than the first image sensor at approximately a same time, respective ones of the instances including; a first coordinate at which a first person was detected via the first image sensor; and a second coordinate at which the first person was detected via the second image sensor; and in response to first image data captured by the first image sensor including a second person at the first coordinate, determining, with a processor, whether second image data captured by the second image sensor includes the second person without comparing the first image data to the second image data; and eliminating, with the processor, the second person from a count of people. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A tangible computer readable storage medium comprising instructions that, when executed, cause a machine to at least:
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maintain a history of instances in which a person is detected by a first image sensor and by a second sensor different than the first image sensor at approximately a same time, respective ones of the instances including; a first coordinate at which a first person was detected via the first image sensor; and a second coordinate at which the first person was detected via the second image sensor; and in response to first image data captured by the first image sensor including a second person at the first coordinate, determine whether second image data captured by the second image sensor includes the second person without comparing the first image data to the second image data; and when the second image data includes the second person, eliminate the second person from a tally of people. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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memory to store a history of instances in which a person is detected by a first image sensor and by a second sensor different than the first image sensor at approximately a same time, respective ones of the instances including; a first coordinate at which a first person was detected via the first image sensor; and a second coordinate at which the first person was detected via the second image sensor; and an overlap eliminator to, in response to first image data captured by the first image sensor including a second person at the first coordinate, determine whether second image data captured by the second image sensor includes the second person without comparing the first image data to the second image data, and, the overlap eliminator is to eliminate the second person from a count of people. - View Dependent Claims (14, 15, 16, 17)
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Specification