Monitoring method and camera
AssigneeAxis AB
InventorsDaniel Gustafsson, Willy Sagefalk, Jonatan Kahrstrom, Gustav Traff
Life of this patent
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Abstract
A method and a system is provided for monitoring an area by a monitoring camera (1). A protected zone (5) is defined within the monitored area (2) and a suspicious object (9a, 9b) is detected as an object present both inside and outside the protected zone. A key position of the suspicious object is determined, and it is determined if the key position is inside or outside the protected zone (5). If the key position is outside the protected zone a first action is triggered.
Claims14
A method of monitoring an area by a monitoring camera, comprising the steps of:
- defining a protected zone within the monitored area,
- detecting a suspicious object as an object present both inside and outside the protected zone,
- determining a key position of the suspicious object,
- determining if the key position is inside or outside the protected zone, and if the key position is outside the protected zone, triggering a first action, wherein:
- the key position of the suspicious object is a position where the main part of the body of the object is located or where the object is standing,
- the step of defining the protected zone comprises defining a three dimensional protected volume, and
- the step of determining if the key position is inside or outside the protected zone comprises determining if the key position is inside or outside a two dimensional projection of the protected volume.
A monitoring system for monitoring an area, comprising:
- a monitoring camera,
- a zone definition unit arranged to define a protected zone within the monitored area,
- a suspicious object detection unit arranged to detect a suspicious object as an object present both inside and outside the protected zone,
- an object position determination unit arranged to determine a key position of the suspicious object and to determine if the key position is inside or outside the protected zone, and
- an action trigger unit arranged to trigger a first action in case the key position is determined to be outside the protection zone, wherein:
- the key position of the suspicious object is a position where the main part of the body of the object is located or where the object is standing,
- the zone definition unit is arranged to define a three dimensional protected volume, and
- the object position determination unit is arranged to determine if the suspicious object is inside or outside a two dimensional projection of the protected volume.
Dependencies are inferred from the claim text.