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US 12,190,692 B2Granted
Monitoring device, suspicious object detecting method, and recording medium
AssigneeNEC Corporation
InventorRyoma Oami
Life of this patent
Estimating the term…
Abstract
A monitoring device and the like are provided which are capable of detecting an attribute change in a suspicious object that cannot be determined from the behavior of the object. An associating unit associates, among a plurality of objects detected from time-series image data, identical objects with one another. An attribute change detecting unit detects from the time-series image data a change in an attribute of at least one of the identical objects and an attendant item. A suspicious object detecting unit detects a suspicious object on the basis of the change in attribute.
Claims20
A monitoring device comprising:
- a memory storing instructions;
- and
- at least one processor coupled to the memory and configured to execute the instructions to:
- detect multiple objects from time-series image data;
- associate the multiple objects that are a same object with one another by determining sameness;
- calculate a reliability of a determination result of the sameness, the reliability indicating a certainty of the sameness;
- detect an attribute change of at least one of the same object and an accessory of the same object from the time-series image data;
- determine authenticity of the attribute change based on the reliability;
- and
- determine whether the same object is a suspicious object according to a determination result of the authenticity, wherein
- determination of the authenticity includes specifying a context in the time-series image data in which the attribute change has been detected,
- determination of whether the same object is the suspicious object includes detecting the same object as the suspicious object when a combination of the detected attribute change and the specified context is not included in exception information indicating that the attribute change is not suspicious in the context, and
- the exception information includes information associating the context indicating a locker room with the attribute change indicating a change in clothing.
10 more elements
A monitoring method performed by a computer and comprising:
- detecting multiple objects from time-series image data;
- associating the multiple objects that are a same object with one another by determining sameness;
- calculating a reliability of a determination result of the sameness, the reliability indicating a certainty of the sameness;
- detecting an attribute change of at least one of the same object and an accessory of the same object from the time-series image data;
- determining authenticity of the attribute change based on the reliability;
- and
- determining whether the same object is a suspicious object according to a determination result of the authenticity, wherein
- determination of the authenticity includes specifying a context in the time-series image data in which the attribute change has been detected,
- determination of whether the same object is the suspicious object includes detecting the same object as the suspicious object when a combination of the detected attribute change and the specified context is not included in exception information indicating that the attribute change is not suspicious in the context, and
- the exception information includes information associating the context indicating a locker room with the attribute change indicating a change in clothing.
7 more elements
A non-transitory computer-readable recording medium storing a program for causing a computer to execute processing comprising:
- detecting multiple objects from time-series image data;
- associating the multiple objects that are a same object with one another by determining sameness;
- calculating a reliability of a determination result of the sameness, the reliability indicating a certainty of the sameness;
- detecting an attribute change of at least one of the same object and an accessory of the same object from the time-series image data;
- determining authenticity of the attribute change based on the reliability;
- and
- determining whether the same object is a suspicious object according to a determination result of the authenticity, wherein
- determination of the authenticity includes specifying a context in the time-series image data in which the attribute change has been detected,
- determination of whether the same object is the suspicious object includes detecting the same object as the suspicious object when a combination of the detected attribute change and the specified context is not included in exception information indicating that the attribute change is not suspicious in the context, and
- the exception information includes information associating the context indicating a locker room with the attribute change indicating a change in clothing.
7 more elements
Dependencies are inferred from the claim text.