Stay duration measurement method and system for measuring moving objects in a surveillance area
First Claim
1. A stay duration measurement device comprising:
- a processor; and
a memory storing instructions,wherein the processor, when executing the instructions stored in the memory, performs operations comprising;
obtaining a movement line of each moving object of a plurality of moving objects detected from images including a measurement area;
determining whether the obtained movement line of a moving object of interest of the plurality of moving objects includes a missing part in the measurement area; and
obtaining, when it is determined that the movement line of the moving object of interest includes a missing part in the measurement area, a stay duration of the moving object of interest in the measurement area, by compensating for the missing part based on at least one time period required for movement in the measurement area by at least one moving object of the plurality of moving objects other than the moving object of interest,wherein, in the determining, the movement line is determined as including a missing part in the measurement area, when the movement line crosses only one or none of a measurement start line and a measurement end line defined on a boundary of the measurement area in the images,wherein the processor, when executing instructions stored in the memory, further performs operations comprising;
cumulatively storing, in a memory, stay durations obtained for the plurality of moving objects,performing temporal statistical processing on the stay durations obtained for the plurality of moving objects and cumulatively stored in the memory, to generate statistical information; and
outputting information including the statistical information.
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Accused Products
Abstract
A stay duration measurement device for measuring a stay duration in a measurement area for each moving object, includes: a movement line obtaining unit that obtains a movement line of each moving object detected from images including the measurement area; a movement line assessment unit that determines whether the movement line obtained by the movement line obtaining unit includes a missing part in the measurement area; and a stay duration obtaining unit that, in a case where it is determined by the movement line assessment unit that the movement line of a moving object of interest includes a missing part in the measurement area, obtains a stay duration compensated for the missing part based on a time period(s) required for movement(s) of one or more other moving objects in the measurement area.
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Citations
15 Claims
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1. A stay duration measurement device comprising:
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a processor; and a memory storing instructions, wherein the processor, when executing the instructions stored in the memory, performs operations comprising; obtaining a movement line of each moving object of a plurality of moving objects detected from images including a measurement area; determining whether the obtained movement line of a moving object of interest of the plurality of moving objects includes a missing part in the measurement area; and obtaining, when it is determined that the movement line of the moving object of interest includes a missing part in the measurement area, a stay duration of the moving object of interest in the measurement area, by compensating for the missing part based on at least one time period required for movement in the measurement area by at least one moving object of the plurality of moving objects other than the moving object of interest, wherein, in the determining, the movement line is determined as including a missing part in the measurement area, when the movement line crosses only one or none of a measurement start line and a measurement end line defined on a boundary of the measurement area in the images, wherein the processor, when executing instructions stored in the memory, further performs operations comprising; cumulatively storing, in a memory, stay durations obtained for the plurality of moving objects, performing temporal statistical processing on the stay durations obtained for the plurality of moving objects and cumulatively stored in the memory, to generate statistical information; and outputting information including the statistical information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stay duration measurement system comprising:
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a camera that captures images of a region including a measurement area; and a plurality of processors, wherein the plurality of processors jointly performs operations comprising; detecting a plurality of moving objects from the images captured by the camera and outputting detection position information of the plurality of moving objects; obtaining a movement line of each moving object of the plurality of moving objects based on the detection position information; determining whether the obtained movement line of a moving object of interest of the plurality of moving objects includes a missing part in the measurement area; and obtaining, when it is determined that the movement line of the moving object of interest includes a missing part in the measurement area, a stay duration of the moving object of interest in the measurement area, by compensating for the missing part based on at least one time period required for movement in the measurement area by at least one moving object of the plurality of moving objects other than the moving object of interest, wherein, in the determining, the movement line is determined as including a missing part in the measurement area, when the movement line crosses only one or none of a measurement start line and a measurement end line defined on a boundary of the measurement area in the images, wherein the plurality of processors further jointly performs operations comprising; cumulatively storing, in a memory, stay durations obtained for the plurality of moving objects, performing temporal statistical processing on the stay durations obtained for the plurality of moving objects and cumulatively stored in the memory, to generate statistical information; and outputting information including the statistical information.
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15. A stay duration measurement method comprising:
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obtaining a movement line of each moving object of a plurality of moving objects detected from images including a measurement area; determining whether the obtained movement line of a moving object of interest of the plurality of moving objects includes a missing part in the measurement area; and in response to determining that the movement line of the moving object of interest includes a missing part in the measurement area, obtaining a stay duration of the moving object of interest in the measurement area, by compensating for the missing part based on at least one time period required for movement in the measurement area by at least one moving object of the plurality of moving objects other than the moving object of interest, wherein, in the determining, the movement line is determined as including a missing part in the measurement area, when the movement line crosses only one or none of a measurement start line and a measurement end line defined on a boundary of the measurement area in the images, wherein at least one of the obtaining a movement line, the determining whether the movement line includes a missing part in the measurement area, and the obtaining a stay duration is performed by a processor, wherein the method further comprising; cumulatively storing, in a memory, stay durations obtained for the plurality of moving objects, performing temporal statistical processing on the stay durations obtained for the plurality of moving objects and cumulatively stored in the memory, to generate statistical information; and outputting information including the statistical information.
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Specification