Method and system for automatic analysis of the trip of people in a retail space using multiple cameras
First Claim
1. A method for automatically determining the trip of a person in a physical space, comprising the following steps of:
- a) capturing a plurality of input images of said person by a plurality of means for capturing images,b) performing background subtraction applying a two-cluster model to a grayscale intensity histogram per pixel,c) processing said plurality of input images in order to track said person in each field of view of said plurality of means for capturing images,d) mapping the trip on to the coordinates of the physical space,e) joining a plurality of tracks across the multiple fields of view, andf) finding information for said trip of said person based on the processed results from the plurality of tracks,wherein the two-cluster model consists of two pairs of thresholds that are represented in one 4-byte word.
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Abstract
The present invention is a method and system for automatically determining the trip of people in a physical space, such as retail space, by capturing a plurality of input images of the people by a plurality of means for capturing images, processing the plurality of input images in order to track the people in each field of view of the plurality of means for capturing images, mapping the trip on to the coordinates of the physical space, joining the plurality of tracks across the multiple fields of view of the plurality of means for capturing images, and finding information for the trip of the people based on the processed results from the plurality of tracks. The trip information can comprise coordinates of the people'"'"'s position and temporal attributes, such as trip time and trip length, for the plurality of tracks. The physical space may be a retail space, and the people may be customers in the retail space. The trip information can provide key measurements along the entire shopping trip, from entrance to checkout, that deliver deeper insights about the trip as a whole.
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Citations
24 Claims
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1. A method for automatically determining the trip of a person in a physical space, comprising the following steps of:
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a) capturing a plurality of input images of said person by a plurality of means for capturing images, b) performing background subtraction applying a two-cluster model to a grayscale intensity histogram per pixel, c) processing said plurality of input images in order to track said person in each field of view of said plurality of means for capturing images, d) mapping the trip on to the coordinates of the physical space, e) joining a plurality of tracks across the multiple fields of view, and f) finding information for said trip of said person based on the processed results from the plurality of tracks, wherein the two-cluster model consists of two pairs of thresholds that are represented in one 4-byte word. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for automatically determining the trip of a person in a physical space, comprising:
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a) a plurality of means for capturing images that captures a plurality of input images of said person, b) means for control and processing that performs the following steps of; performing background subtraction applying a two-cluster model to a grayscale intensity histogram per pixel, processing said plurality of input images in order to track said person in each field of view of said plurality of means for capturing images, mapping the trip on to the coordinates of the physical space, joining a plurality of tracks across the multiple fields of view, and finding information for said trip of said person based on the processed results from the plurality of tracks, wherein the two-cluster model consists of two pairs of thresholds that are represented in one 4-byte word. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification