Methods and apparatus to count people in images
First Claim
1. A method, comprising:
- analyzing frame pairs of a plurality of frame pairs captured over a period of time to identify a redundant person indication detected in an overlap region, the overlap region corresponding to an intersection of a first field of view of a first image sensor and a second field of view of a second image sensor, each of the frame pairs including a first frame captured by the first image sensor and a second frame captured by the second image sensor;
eliminating the identified redundant person indication to form a conditioned set of person indications for the period of time;
grouping similarly located ones of the person indications of the conditioned set to form groups;
analyzing the groups to identify redundant groups detected in the overlap region; and
eliminating the redundant groups from a people tally generated based on the groups.
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Abstract
An example method includes analyzing frame pairs of a plurality of frame pairs captured over a period of time to identify a redundant person indication detected in an overlap region, the overlap region corresponding to an intersection of a first field of view of a first image sensor and a second field of view of a second image sensor, each of the frame pairs including a first frame captured by the first image sensor and a second frame captured by the second image sensor; eliminating the identified redundant person indication to form a conditioned set of person indications for the period of time; grouping similarly located ones of the person indications of the conditioned set to form groups; analyzing the groups to identify redundant groups detected in the overlap region; and eliminating the redundant groups from a people tally generated based on the groups.
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Citations
20 Claims
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1. A method, comprising:
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analyzing frame pairs of a plurality of frame pairs captured over a period of time to identify a redundant person indication detected in an overlap region, the overlap region corresponding to an intersection of a first field of view of a first image sensor and a second field of view of a second image sensor, each of the frame pairs including a first frame captured by the first image sensor and a second frame captured by the second image sensor; eliminating the identified redundant person indication to form a conditioned set of person indications for the period of time; grouping similarly located ones of the person indications of the conditioned set to form groups; analyzing the groups to identify redundant groups detected in the overlap region; and eliminating the redundant groups from a people tally generated based on the groups. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tangible machine readable storage medium comprising instructions that, when executed, cause a machine to at least:
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analyze frame pairs of a plurality of frame pairs captured over a period of time to identify a redundant person indication detected in an overlap region, the overlap region corresponding to an intersection of a first field of view of a first image sensor and a second field of view of a second image sensor, each of the frame pairs including a first frame captured by the first image sensor and a second frame captured by the second image sensor; eliminate the identified redundant person indication to form a conditioned set of person indications for the period of time; group similarly located ones of the person indications of the conditioned set to form groups; analyze the groups to identify redundant groups detected in the overlap region; and eliminate the redundant groups from a people tally generated based on the groups. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus, comprising:
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a processor to analyze frame pairs of a plurality of frame pairs captured over a period of time to identify person indications detected in an overlap region, the overlap region corresponding to an intersection of a first field of view of a first image sensor and a second field of view of a second image sensor, each of the frame pairs including a first frame captured by the first image sensor and a second frame captured by the second image sensor; a first eliminator to eliminate a redundant one of the identified person indications to form a conditioned set of person indications for the period of time; a grouper to group similarly located ones of the person indications of the conditioned set to form one or more groups, each of the one or more groups being indicative of a person in an environment during the period of time, wherein the processor is to analyze the one or more groups to identify a redundant group detected in the overlap region; and a second eliminator to eliminate the redundant groups from a people tally generated based on the one or more groups. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification