JP2004135182A - Monitoring camera and monitoring camera system - Google Patents

Monitoring camera and monitoring camera system Download PDF

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Publication number
JP2004135182A
JP2004135182A JP2002299498A JP2002299498A JP2004135182A JP 2004135182 A JP2004135182 A JP 2004135182A JP 2002299498 A JP2002299498 A JP 2002299498A JP 2002299498 A JP2002299498 A JP 2002299498A JP 2004135182 A JP2004135182 A JP 2004135182A
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JP
Japan
Prior art keywords
camera
abnormality
image
generated
image data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002299498A
Other languages
Japanese (ja)
Inventor
Shino Ogasawara
小笠原 詩乃
Mika Sugimoto
杉本 美香
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP2002299498A priority Critical patent/JP2004135182A/en
Publication of JP2004135182A publication Critical patent/JP2004135182A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To promptly and exactly grasp the status of a part where an abnormality is generated. <P>SOLUTION: A monitoring camera unit 10 is constituted of a convex magic mirror 15 on which all direction images of a monitoring area are reflected, a first camera 14 which photographs the all the direction images and a second camera 16 having an optical zoom function and which photographs images in the specific direction. Image data photographed by the first camera 14 is transmitted to an image processor 11, image processing and storage of the image data are performed and the all direction images are displayed on a monitor 12. When an abnormality is generated, overwrite storage of the image data is canceled and pieces of the image data before and after generation of the abnormality are stored. The part where the abnormality is generated is specified from the all direction images of the first camera 14, the photographic direction of the second camera 16 is made to match the part where the abnormality is generated and a detailed image of the part where the abnormality is generated is photographed by using the optical zoom function. Display of the monitor 12 is switched over to an image from the camera 16 and the status of the part where the abnormality is generated is grasped. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、迅速に異常に対処することができる監視カメラおよび監視カメラシステムに関する。
【0002】
【従来の技術】
現在、監視カメラは、金融機関、コンビニエンスストアなどに設置される防犯を目的としたものだけでなく、老人介護などの福祉目的にも広く利用されている。このような利用目的の多様化に伴い、より広範囲にわたる領域をカバーすることができる監視カメラが求められている。
【0003】
上記の要求に対して、凸型ミラーを用いて周囲360°の画像を撮影する全方位監視カメラシステムが提案されている(非特許文献1参照)。このシステムでは、凸型ミラーに映し出された監視領域の全方位画像を一台のCCDカメラで撮影し、この撮影画像に画像処理を施すことで、全方位画像を展開したパノラマ画像や、特定部分を拡大した部分画像を得ることができる。
【0004】
【非特許文献1】
シャープ株式会社、”ニュースリリース”、2001年9月19日、インターネット<URL;http://www.sharp.co.jp/corporate/news/010919−2.html>
【0005】
【発明が解決しようとする課題】
しかしながら、非特許文献1に記載される監視カメラシステムでは、部分画像の拡大が画像処理レベルで行われるため、異常が発生した箇所が全体の画像よりも小さい場合には、異常発生箇所の確認・特定が困難であった。
【0006】
本発明は、異常発生箇所の状況把握を迅速且つ的確に行うことができる監視カメラおよび監視カメラシステムを提供することを目的とする。
【0007】
【課題を解決するための手段】
上記目的を達成するために、本発明の監視カメラは、監視領域の全方位画像が映し出される凸型のマジックミラーと、前記全方位画像を撮影する第1のカメラと、光学ズーム機能を有し、特定方向の画像を撮影する第2のカメラとからなることを特徴とする。
【0008】
また、本発明の監視カメラシステムは、監視領域に異常が発生した場合に、前記第1のカメラの全方位画像から異常が発生した箇所を特定し、前記第2のカメラに異常発生箇所の撮影を行わせる制御手段を備えたことを特徴とする。
【0009】
【発明の実施の形態】
図1において、監視カメラシステム2は、監視カメラユニット10、画像処理装置11、およびモニタ12から構成される。監視カメラユニット10は、透明カバー13、第1カメラ14、マジックミラー15、第2カメラ16、および台座17からなる。監視カメラユニット10は、台座17により監視領域の天井や壁に取り付けられる。
【0010】
第1カメラ14はCCDカメラからなり、凸型の透明カバー13に設けられた取り付け穴13aに固定されている。第1カメラ14は、凸型のマジックミラー15の外側の面に映し出された監視領域の全方位画像を撮影する。この第1カメラ14は、画像処理装置11に接続されており、撮影した画像データを画像処理装置11に逐次送信する。
【0011】
第2カメラ16は、光学ズーム機能を有するCCDカメラからなり、上下左右に首振り自在となっている。この第2カメラ16は、マジックミラー15および透明カバー13を介して、第1カメラ14の全方位画像から選択された監視領域の特定方向の画像を撮影する。
【0012】
画像処理装置11は、第1カメラ14から送信される画像データを、図示しない内部メモリに保存するとともに、全方位画像の歪みを補正してパノラマ画像に展開する画像処理を施す。画像処理装置11では、一定時間経過毎に画像データを随時上書き保存し、異常発生時には上書き保存を中止して異常発生時前後の画像データを保存する。このようにすると、内部メモリの記憶容量を無駄に使用することがない。
【0013】
モニタ12は、画像処理装置11で展開されたパノラマ画像や、第1カメラ14で撮影された全方位画像、第2カメラ16で撮影された特定方向の画像を切り替えて表示する。
【0014】
次に、上記構成による作用について、図2のフローチャートを参照して説明する。まず、監視カメラユニット10を監視領域の天井などに設置し、第1カメラ14で監視領域の全方位画像を撮影する。撮影した画像データを画像処理装置11に送信して、画像処理および画像データの保存を行い、モニタ12に全方位画像を表示する。異常が発生していない場合は、画像データを一定時間経過毎に上書き保存する。
【0015】
異常が発生した場合は、画像データの上書き保存を中止して、異常発生時前後の画像データを保存する。第1カメラ14の全方位画像から異常が発生した箇所を特定し、第2カメラ16の撮影方向を異常発生箇所に合わせ、光学ズーム機能を用いて異常発生箇所の詳細な画像を撮影する。このとき、モニタ12の表示を第2カメラ16からの画像に切り替える。このようにすると、異常発生箇所の状況を迅速且つ確実に把握し、適切な対処を施すことができる。
【0016】
ここで、第2カメラ16の撮影方向を異常発生箇所に合わせる方法としては、第1カメラ14からの全方位画像またはパノラマ画像から、モニタ12の監視者が異常発生箇所を特定し、第2カメラ16を遠隔操作してもよいし、画像処理装置11で周知のパターン認識技術を用いて異常発生箇所を自動的に特定し、第2カメラ16を作動させてもよい。
【0017】
あるいは、第1カメラ14にマイクを内蔵させ、このマイクで集音される監視領域の音声から異常発生箇所を特定してもよい。このようにすると、画像処理を施さずに異常発生箇所を特定することができ、状況把握・対処がさらに迅速になる。また、この場合、異常発生時にマイクから警告を報知したり、監視領域の音声を画像データとともに記録することもできる。
【0018】
【発明の効果】
以上のように、本発明の監視カメラおよび監視カメラシステムによれば、監視領域の全方位画像が映し出される凸型のマジックミラーと、前記全方位画像を撮影する第1のカメラと、光学ズーム機能を有し、特定方向の画像を撮影する第2のカメラとからなり、監視領域に異常が発生した場合に、第1のカメラの全方位画像から異常が発生した箇所を特定し、第2のカメラに異常発生箇所の撮影を行わせるので、異常発生箇所の状況把握を迅速且つ的確に行うことができる。
【図面の簡単な説明】
【図1】監視カメラシステムの概略図である。
【図2】監視カメラシステムの動作手順を示すフローチャートである。
【符号の説明】
2 監視カメラシステム
10 監視カメラユニット
11 画像処理装置
12 モニタ
14 第1カメラ
15 マジックミラー
16 第2カメラ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a surveillance camera and a surveillance camera system that can quickly cope with abnormalities.
[0002]
[Prior art]
At present, surveillance cameras are widely used not only for crime prevention purposes installed in financial institutions and convenience stores, but also for welfare purposes such as elderly care. With the diversification of such purposes of use, there is a demand for a surveillance camera that can cover a wider area.
[0003]
In response to the above requirements, an omnidirectional monitoring camera system has been proposed that uses a convex mirror to capture a 360 ° surrounding image (see Non-Patent Document 1). In this system, an omnidirectional image of the monitoring area projected on the convex mirror is captured with a single CCD camera, and this captured image is processed to create a panoramic image or a specific portion of the omnidirectional image. Can be obtained.
[0004]
[Non-Patent Document 1]
Sharp Corporation, “News Release”, September 19, 2001, Internet <URL; http: // www. sharp. co. jp / corporate / news / 010919-2. html>
[0005]
[Problems to be solved by the invention]
However, in the surveillance camera system described in Non-Patent Document 1, since the partial image is enlarged at the image processing level, if the location where the abnormality has occurred is smaller than the entire image, the confirmation / It was difficult to identify.
[0006]
An object of the present invention is to provide a surveillance camera and a surveillance camera system that can quickly and accurately grasp the situation of an abnormality occurrence location.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a surveillance camera of the present invention has a convex magic mirror that displays an omnidirectional image of a surveillance area, a first camera that captures the omnidirectional image, and an optical zoom function. And a second camera that captures an image in a specific direction.
[0008]
In the surveillance camera system of the present invention, when an abnormality occurs in the surveillance area, the location where the abnormality has occurred is identified from the omnidirectional image of the first camera, and the location where the abnormality has occurred is photographed in the second camera. It is characterized by comprising control means for performing the above.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, the surveillance camera system 2 includes a surveillance camera unit 10, an image processing device 11, and a monitor 12. The surveillance camera unit 10 includes a transparent cover 13, a first camera 14, a magic mirror 15, a second camera 16, and a pedestal 17. The surveillance camera unit 10 is attached to the ceiling or wall of the surveillance area by a pedestal 17.
[0010]
The first camera 14 is a CCD camera and is fixed to a mounting hole 13 a provided in the convex transparent cover 13. The first camera 14 captures an omnidirectional image of the monitoring area projected on the outer surface of the convex magic mirror 15. The first camera 14 is connected to the image processing apparatus 11 and sequentially transmits captured image data to the image processing apparatus 11.
[0011]
The second camera 16 is a CCD camera having an optical zoom function, and can swing freely up, down, left and right. The second camera 16 captures an image in a specific direction of the monitoring area selected from the omnidirectional image of the first camera 14 via the magic mirror 15 and the transparent cover 13.
[0012]
The image processing apparatus 11 stores image data transmitted from the first camera 14 in an internal memory (not shown), and performs image processing for correcting distortion of the omnidirectional image and expanding it into a panoramic image. The image processing apparatus 11 overwrites and saves the image data whenever a fixed time elapses, stops the overwriting when an abnormality occurs, and saves the image data before and after the abnormality occurs. In this way, the storage capacity of the internal memory is not wasted.
[0013]
The monitor 12 switches and displays a panoramic image developed by the image processing apparatus 11, an omnidirectional image captured by the first camera 14, and an image in a specific direction captured by the second camera 16.
[0014]
Next, the effect | action by the said structure is demonstrated with reference to the flowchart of FIG. First, the monitoring camera unit 10 is installed on the ceiling of the monitoring area or the like, and the first camera 14 captures an omnidirectional image of the monitoring area. The captured image data is transmitted to the image processing apparatus 11, image processing and image data storage are performed, and an omnidirectional image is displayed on the monitor 12. If no abnormality has occurred, the image data is overwritten and saved every certain time.
[0015]
When an abnormality occurs, overwriting and saving of the image data is stopped, and the image data before and after the occurrence of the abnormality are saved. A location where an abnormality has occurred is identified from the omnidirectional image of the first camera 14, the shooting direction of the second camera 16 is aligned with the location where the abnormality has occurred, and a detailed image of the location where the abnormality has occurred is taken using the optical zoom function. At this time, the display on the monitor 12 is switched to the image from the second camera 16. In this way, it is possible to quickly and reliably grasp the situation of the abnormality occurrence location and take appropriate measures.
[0016]
Here, as a method of matching the shooting direction of the second camera 16 with the abnormality occurrence location, the monitor of the monitor 12 identifies the abnormality occurrence location from the omnidirectional image or the panoramic image from the first camera 14, and the second camera 16 may be remotely operated, or the image processing apparatus 11 may automatically identify a location where an abnormality has occurred using a well-known pattern recognition technique and operate the second camera 16.
[0017]
Alternatively, a microphone may be built in the first camera 14, and the location where the abnormality has occurred may be identified from the sound in the monitoring area collected by this microphone. In this way, it is possible to identify the location where an abnormality has occurred without performing image processing, and the situation can be grasped and dealt with more quickly. In this case, a warning can be notified from the microphone when an abnormality occurs, and the sound in the monitoring area can be recorded together with the image data.
[0018]
【The invention's effect】
As described above, according to the surveillance camera and surveillance camera system of the present invention, the convex magic mirror that displays the omnidirectional image of the surveillance area, the first camera that captures the omnidirectional image, and the optical zoom function And a second camera that captures an image in a specific direction, and when an abnormality occurs in the monitoring area, the location where the abnormality has occurred is identified from the omnidirectional image of the first camera, and the second camera Since the camera captures the location of the abnormality occurrence, it is possible to quickly and accurately grasp the situation of the abnormality occurrence location.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a surveillance camera system.
FIG. 2 is a flowchart showing an operation procedure of the surveillance camera system.
[Explanation of symbols]
2 surveillance camera system 10 surveillance camera unit 11 image processing device 12 monitor 14 first camera 15 magic mirror 16 second camera

Claims (2)

監視領域の全方位画像が映し出される凸型のマジックミラーと、前記全方位画像を撮影する第1のカメラと、光学ズーム機能を有し、特定方向の画像を撮影する第2のカメラとからなることを特徴とする監視カメラ。Consists of a convex magic mirror that displays an omnidirectional image of the monitoring area, a first camera that captures the omnidirectional image, and a second camera that has an optical zoom function and captures an image in a specific direction. A surveillance camera characterized by that. 監視領域に異常が発生した場合に、前記第1のカメラの全方位画像から異常が発生した箇所を特定し、前記第2のカメラに異常発生箇所の撮影を行わせる制御手段を備えたことを特徴とする監視カメラシステム。When an abnormality occurs in the monitoring area, a control unit is provided that identifies a location where the abnormality has occurred from the omnidirectional image of the first camera, and causes the second camera to image the location where the abnormality has occurred. Characteristic surveillance camera system.
JP2002299498A 2002-10-11 2002-10-11 Monitoring camera and monitoring camera system Pending JP2004135182A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100651688B1 (en) 2004-12-02 2006-12-01 황의남 Omni-directional monitoring camera device
KR100978721B1 (en) * 2008-08-01 2010-08-30 한국도로공사 Omni-directional Camera and PTZ Camera Linkage Possible Photographing Apparatus and Method Therewith, and a Computer-Readable Medium thereof
WO2012090398A1 (en) * 2010-12-28 2012-07-05 公立大学法人公立はこだて未来大学 Imaging device and image presentation system
JP2013062559A (en) * 2010-09-02 2013-04-04 Dodwell Bms Ltd Imaging monitor screen and omnidirectional imaging screen monitoring system
WO2018030622A1 (en) * 2016-08-12 2018-02-15 Lg Electronics Inc. Mobile terminal and operating method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100651688B1 (en) 2004-12-02 2006-12-01 황의남 Omni-directional monitoring camera device
KR100978721B1 (en) * 2008-08-01 2010-08-30 한국도로공사 Omni-directional Camera and PTZ Camera Linkage Possible Photographing Apparatus and Method Therewith, and a Computer-Readable Medium thereof
JP2013062559A (en) * 2010-09-02 2013-04-04 Dodwell Bms Ltd Imaging monitor screen and omnidirectional imaging screen monitoring system
WO2012090398A1 (en) * 2010-12-28 2012-07-05 公立大学法人公立はこだて未来大学 Imaging device and image presentation system
JP5778177B2 (en) * 2010-12-28 2015-09-16 公立大学法人公立はこだて未来大学 Image pickup apparatus and image presentation system
US9143700B2 (en) 2010-12-28 2015-09-22 Future University Hakodate Image capturing device for capturing an image at a wide angle and image presentation system
WO2018030622A1 (en) * 2016-08-12 2018-02-15 Lg Electronics Inc. Mobile terminal and operating method thereof

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