Device for measuring the number of pass persons and a management system employing same
First Claim
1. A device for measuring the number of passing persons comprisinga plurality of camera means arranged in parallel with respect to their optical axes for taking an image in a measuring area to measure the number of persons,extracting means for extracting a person based on image data taken by said plurality of camera means,tracing means for tracing the person extracted by said extracting means, andcounting means for counting the number of persons passing a predetermined measuring position based on data provided by said tracing means,said device employing space coordinate data by correspondence between a plurality of images provided at the same timing by said plurality of camera means to extract the passing person.
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Accused Products
Abstract
A device for measuring the number of persons without any affection by overlap of persons in any direction, sunlight variations, shadows, or the like includes a plurality of cameras arranged in parallel with respect to their optical axes for taking an image in a measuring area to measure the number of persons, an extraction unit for extracting a person based on image data taken by said plurality of cameras, a trace unit for tracing the person extracted by the extraction unit, and a decision unit for deciding whether or not a decision line is passed based on the data produced by the trace unit and to increase the number of passing persons when the line is passed. In the extraction unit, the persons overlapping in a depth direction can be precisely separated by employing space coordinate data by correspondence in a plurality of images taken by the plurality of cameras at the same timing. The decision unit decides that one person has passed when initial and end points of a translation locus of the person are respectively positioned on both sides of the decision line set in a gateway.
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Citations
20 Claims
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1. A device for measuring the number of passing persons comprising
a plurality of camera means arranged in parallel with respect to their optical axes for taking an image in a measuring area to measure the number of persons, extracting means for extracting a person based on image data taken by said plurality of camera means, tracing means for tracing the person extracted by said extracting means, and counting means for counting the number of persons passing a predetermined measuring position based on data provided by said tracing means, said device employing space coordinate data by correspondence between a plurality of images provided at the same timing by said plurality of camera means to extract the passing person.
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9. A system for managing the number of entry persons who enter an area and exit persons who leave the area comprising:
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a plurality of camera means arranged in parallel with respect to their optical axes for taking an image in a measuring area to measure the number of persons; extracting means for extracting a person based on image data taken by said plurality of camera means; tracing means for tracing the person extracted by said extracting means; counting means for counting the number of persons passing a predetermined measuring position based on data provided by said tracing means; storage means for storing data representing the number of entry and exit persons produced by said device; and analysis means for analyzing said stored data; said system employing space coordinate data by correspondence between a plurality of images provided at the same timing by said plurality of camera means to extract the passing person, and said measuring area is a gateway, and said counting means counts the number of persons passing said predetermined measuring position by discriminating between an entering person and a leaving person based on a movement direction of said person which is provided by said tracing means. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A system for managing the number of entry persons who enter an area and exit persons who leave the area comprising:
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a plurality of camera means arranged in parallel with respect to their optical axes for taking an image in a measuring area to measure the number of persons; extracting means for extracting a person based on image data taken by said plurality of camera means; tracing means for tracing the person extracted by said extracting means; counting means for counting the number of persons passing a predetermined measuring position based on data provided by said tracing means; storage means for storing data representing the number of entry and exit persons produced by said system; and analysis means for analyzing said stored data; said system employing space coordinate data by correspondence between a plurality of images provided at the same timing by said plurality of camera means to extract the passing person, said measuring area is a gateway, and said counting means counts the number of persons passing said predetermined measuring position by discriminating between an entering person and a leaving person based on a movement direction of said person which is provided by said tracing means, and the measuring position for finding a passage in the image is represented by a first measuring position corresponding to said gateway in the image or a second measuring position set at a predetermined distance from said first measuring position, and said device further includes measuring position setting means for selecting and setting one of said first measuring position and said second measuring position based on a predetermined condition, whereby the number of persons passing the gateway is counted based on said selectively set measuring position. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification