Monitoring system

Patent metadata

Field	Value
Publication number	US-2020327329-A1
Application number	US-202016912600-A
Country	US
Kind code	A1
Filing date	Jun 25, 2020
Priority date	Nov 6, 2017
Publication date	Oct 15, 2020
Grant date	—

Abstract

A monitoring system includes a first imaging device, a second imaging device, and a controller. The first imaging device captures an image of a first imaging area to generate first captured image data indicating a first captured image. The second imaging device captures an image of a second imaging area to generate second captured image data indicating a second captured image. The controller detects the events. The events include a pre-event. The pre-event is an imaging obstruction act in which imaging is obstructed in the first imaging area. The controller calculates a first obstruction area rate, and calculates a second obstruction area ratee. When the first obstruction area rate is equal to or greater than a threshold and the second obstruction area rate is less than the threshold, the controller detects the imaging obstruction act as the pre-event.

First claim

What is claimed is:

1 . A monitoring system for detecting events, the monitoring system comprising:
a first imaging device configured to capture an image of a first imaging area to generate first captured image data indicating a first captured image; a second imaging device configured to capture an image of a second imaging area which differs from the first imaging area to generate second captured image data indicating a second captured image; and a controller configured to detect the events, wherein the events include a pre-event and a post-event detected after the pre-event has ended, the pre-event is an imaging obstruction act in which imaging is obstructed in the first imaging area, the controller
calculates a first obstruction area rate indicating what percentage of the first imaging area is occupied by a first obstruction area in which the imaging obstruction act is taking place, and
calculates a second obstruction area rate indicating what percentage of the second imaging area is occupied by a second obstruction area in which the imaging obstruction act is taking place, and
when the first obstruction area rate is equal to or greater than a threshold and the second obstruction area rate is less than the threshold, the controller detects the imaging obstruction act as the pre-event.

2 . The monitoring system according to claim 1 further comprising:
storage configured to store data indicating a first flag and a second flag; and
a notifying section configured to notify of information, wherein
the first flag and the second flag are both in an off state before the pre-event is detected, and
the controller
changes the first flag from the off state to an on state upon detecting the pre-event,
holds the first flag in the on state even after the pre-event has ended,
changes the second flag from the off state to the on state upon detecting the post-event, and
directs the notifying section to notify of consecutive event occurrence information indicating that consecutive events have occurred.

3 . A monitoring system for detecting events, the monitoring system comprising:
a first imaging device configured to capture an image of a first imaging area to generate first captured image data indicating a first captured image; a second imaging device configured to capture an image of a second imaging area which differs from the first imaging area to generate second captured image data indicating a second captured image; and a controller configured to detect the events, wherein the events include a pre-event and a post-event detected after the pre-event has ended, the pre-event is an obstruction act in which imaging is obstructed in the first imaging area, the controller detects the pre-event based on the first captured image data and the second captured image data.

4 . The monitoring system according to claim 3 , wherein
the controller
calculates a first obstruction area rate indicating what percentage of the first imaging area is occupied by a first obstruction area in which the obstruction act is taking place, and
calculates a second obstruction area rate indicating what percentage of the second imaging area is occupied by a second obstruction area in which the obstruction act is taking place, and
when the first obstruction area rate is equal to or greater than a threshold and the second obstruction area rate is less than the threshold, the controller detects the pre-event.

5 . The monitoring system according to claim 3 , further comprising
storage configured to store data indicating a first flag and a second flag; and a notifying section configured to notify of information, wherein the first flag and the second flag are both in an off state before the pre-event is detected, and the controller
changes the first flag from the off state to an on state upon detecting the pre-event,
holds the first flag in the on state even after the pre-event has ended,
changes the second flag from the off state to the on state upon detecting the post-event, and
directs the notifying section to notify of consecutive event occurrence information indicating that consecutive events have occurred.

Assignees

• Kyocera Document Solutions Inc

Inventors

• Sakashita Fumiya
• Hiranuma Yoichi
• Sakaguchi Shoichi
• Fujiwara Shohei

Classifications

• H04N23/60

  Control of cameras or camera modules · CPC title

• G06V20/44

  Event detection · CPC title

• G06V20/52

  Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69) · CPC title

• H04N7/181 Primary

  for receiving images from a plurality of remote sources · CPC title

• G06V20/40 Primary

  in video content (extracting overlay text G06V20/62; video retrieval G06F16/70; processing of video elementary streams in video servers H04N21/234; processing of video elementary streams in video clients H04N21/44) · CPC title