Methods and apparatus to count people in images
First Claim
Patent Images
1. A method, comprising:
- identifying, by executing an instruction with a processor, active segments and inactive segments of a plurality of segments of a first frame of image data by comparing respective fluctuation factors determined for the respective segments to a fluctuation threshold, the fluctuation threshold being calculated based on an average fluctuation of a set of pixels in the first frame of image data;
determining, by executing an instruction with the processor, that a first one of the active segments of the first frame is adjacent to or overlaps with a second one of the active segments of the first frame; and
providing, by executing an instruction with the processor, a region of interest in the first frame of image data to an object detection operation, the region of interest including the first and second ones of the active segments of the first frame and excluding an inactive segment of the first frame.
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Abstract
Methods and apparatus to count people in images are disclosed. An example method includes identifying, via a processor, active segments of a plurality of segments of a first frame of image data based on respective fluctuation factors; determining, via the processor, that a first one of the active segments is adjacent to or overlaps with a second one of the active segments; and providing, via the processor, a region of interest in the first frame of image data to an object detection operation, the region of interest including the first and second ones of the active segments and excluding an inactive one of the plurality of segments of the first frame.
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Citations
15 Claims
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1. A method, comprising:
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identifying, by executing an instruction with a processor, active segments and inactive segments of a plurality of segments of a first frame of image data by comparing respective fluctuation factors determined for the respective segments to a fluctuation threshold, the fluctuation threshold being calculated based on an average fluctuation of a set of pixels in the first frame of image data; determining, by executing an instruction with the processor, that a first one of the active segments of the first frame is adjacent to or overlaps with a second one of the active segments of the first frame; and providing, by executing an instruction with the processor, a region of interest in the first frame of image data to an object detection operation, the region of interest including the first and second ones of the active segments of the first frame and excluding an inactive segment of the first frame. - View Dependent Claims (2, 3, 4, 5)
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6. A tangible computer readable storage medium comprising instructions that, when executed, cause a machine to at least:
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identify active segments and inactive segments of a plurality of segments of a first frame of image data by comparing fluctuation factors determined for the respective segments to a fluctuation threshold, the fluctuation threshold being calculated based on an average fluctuation of a set of pixels in the first frame of image data; determine that a first one of the active segments of the first frame is adjacent to or overlaps with a second one of the active segments of the first frame; and provide a region of interest in the first frame of image data to an object detection operation, the region of interest including the first and second ones of the active segments of the first frame and excluding an inactive segment of the first frame. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus, comprising:
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a comparator to identify active segments and inactive segments of a first frame of image data by comparing fluctuation factors determined for respective segments of the first frame to a fluctuation threshold, the fluctuation threshold being calculated based on an average fluctuation of a set of pixels in the first frame of image data; a segment linker to; determine that a first one of the active segments of the first frame is adjacent to or overlaps with a second one of the active segments of the first frame; and define a region of interest in the first frame of image data to include the first and second ones of the active segments of the first frame and exclude an inactive segment of the first frame; and a detector to perform an object detection operation on the region of interest, at least one of the comparator, the segment linker or the detector implemented via a processor. - View Dependent Claims (12, 13, 14, 15)
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Specification