EP0544770A1 - Surveillance system. - Google Patents
Surveillance system.Info
- Publication number
- EP0544770A1 EP0544770A1 EP91915509A EP91915509A EP0544770A1 EP 0544770 A1 EP0544770 A1 EP 0544770A1 EP 91915509 A EP91915509 A EP 91915509A EP 91915509 A EP91915509 A EP 91915509A EP 0544770 A1 EP0544770 A1 EP 0544770A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- reflector
- view
- surveillance system
- field
- 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.)
- Granted
Links
- 238000012545 processing Methods 0.000 claims abstract description 15
- 230000004075 alteration Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19617—Surveillance camera constructional details
- G08B13/19626—Surveillance camera constructional details optical details, e.g. lenses, mirrors or multiple lenses
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/193—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using focusing means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19617—Surveillance camera constructional details
- G08B13/1963—Arrangements allowing camera rotation to change view, e.g. pivoting camera, pan-tilt and zoom [PTZ]
Definitions
- some or all channels may be multiplexed into one display, so that an operator views different areas by switching between channels.
- events may be completely missed simply because the relevant camera view picking up the event was not on the display or was not being observed at the time of the event.
- a surveillance system so configured that the moving masses for pan and tilt are minimal in order to enhance speed of scan and for the moving elements to be enclosed to prevent their observation.
- the system as a whole should preferably be potentially compatible with advanced, computer supported processing and display technology and be able to compete effectively in terms of operating costs and reliability with human operators.
- the reflector is formed to have a sufficient elevational field of view to not require movement and the reflector is only mounted for azimuthal rotation.
- the sensor may be rotated or translated. It is particularly convenient to utilise sensor translation to provide change in monitored elevation. This may be achieved by the reflector providing a larger field of view, at least in elevation, than the sensor area.
- the senor may comprise a group of sensors or a sensor having separately operable zones, and different areas may be activated instead of sensor movement.
- Figure 1 illustrates an embodiment of the invention having a fixed camera and moving plane mirror
- Figure 3 shows a further embodiment with a fixed camera and a . series of faceted mirrors
- Figure 4 shows another embodiment with a fixed camera and a single complex mirror.
- the detailed method by which such translation can be achieved is not, of itself, a feature of this invention.
- One method is to store each frame of image data in a digital frame store, and then to read out the data in the required staggered sequence to counteract the image rotation on the sensor and present an erect image to the viewer.
- the delays imposed by such processing are small and the final image is capable of presentation in a substantially real time basis.
- the multi-faceted mirrors may be rotated continuously at a high speed, and the nearest of the sensors angularly relocated to define an effective and required line of sight. Since the mirrors would under this condition be rotating, the corresponding images would describe a circle in the plane of the sensors, and it would be necessary to gate or strobe the selected sensor to produce a 'snapshot' of the image acceptably free from movement and blur.
- a strobe may eliminate the need for graphic rotation. Stroboscopic monitoring of the sensor may be provided within the graphics processor.
- Images from a mirror of this type may be difficult to comprehend directly as a display by an observer, but could be used by an automatic processing system to detect significant changes or movement in scene detail such as the advent of intruders. This may be achieved by automatic frame comparison techniques.
- a fast slewing mirror as described with respect to Figures 1 or 2 could then be quickly directed to the coordinates of any such disturbance to facilitate closer examination.
- the graphics processing device provides the signals to the fast slewing mirror and displays either the image from that mirror or a readout indicative of information relating to the frame comparison.
Abstract
Système de surveillance dans lequel un réflecteur (1) est utilisé pour focaliser une image d'un champ visuel externe (5) sur un détecteur. La nécessité d'utiliser des pièces mobiles massives est minimisée par le fait que des modifications apportées à l'azimuth et/ou l'élévation de la ligne de vision sont effectuées par le pivotement du réflecteur et/ou le mouvement du détecteur. Des miroirs à plusieurs facettes ou incurvés peuvent être utilisés pour augmenter le rayon de l'azimuth. Un traitement graphique est utilisé pour présenter des images d'observation normales et/ou le résultat de comparaisons d'images.Surveillance system in which a reflector (1) is used to focus an image of an external visual field (5) onto a detector. The need for massive moving parts is minimized by the fact that changes in azimuth and/or line of sight elevation are effected by reflector pivoting and/or detector movement. Multifaceted or curved mirrors can be used to increase the azimuth radius. Graphical processing is used to present normal observation images and/or the result of image comparisons.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9018709 | 1990-08-25 | ||
GB909018709A GB9018709D0 (en) | 1990-08-25 | 1990-08-25 | Surveillance devices |
PCT/GB1991/001425 WO1992003806A1 (en) | 1990-08-25 | 1991-08-22 | Surveillance system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0544770A1 true EP0544770A1 (en) | 1993-06-09 |
EP0544770B1 EP0544770B1 (en) | 1997-01-08 |
Family
ID=10681244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91915509A Expired - Lifetime EP0544770B1 (en) | 1990-08-25 | 1991-08-22 | Surveillance system |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0544770B1 (en) |
DE (1) | DE69124097T2 (en) |
GB (2) | GB9018709D0 (en) |
WO (1) | WO1992003806A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416589A1 (en) * | 1994-05-11 | 1995-11-16 | Zeiss Carl Fa | Image acquisition and playback system |
DE19757497C2 (en) * | 1997-12-23 | 2002-07-11 | Deutsch Zentr Luft & Raumfahrt | Optical monitoring device |
EP1314137A2 (en) * | 2000-08-25 | 2003-05-28 | Koninklijke Philips Electronics N.V. | Method and apparatus for tracking an object of interest in a digital image |
US7168618B2 (en) | 2004-08-12 | 2007-01-30 | International Business Machines Corporation | Retail store method and system |
US9685048B2 (en) | 2007-04-03 | 2017-06-20 | International Business Machines Corporation | Automatically generating an optimal marketing strategy for improving cross sales and upsales of items |
US8639563B2 (en) | 2007-04-03 | 2014-01-28 | International Business Machines Corporation | Generating customized marketing messages at a customer level using current events data |
US8812355B2 (en) | 2007-04-03 | 2014-08-19 | International Business Machines Corporation | Generating customized marketing messages for a customer using dynamic customer behavior data |
US8775238B2 (en) | 2007-04-03 | 2014-07-08 | International Business Machines Corporation | Generating customized disincentive marketing content for a customer based on customer risk assessment |
US8831972B2 (en) | 2007-04-03 | 2014-09-09 | International Business Machines Corporation | Generating a customer risk assessment using dynamic customer data |
US9626684B2 (en) | 2007-04-03 | 2017-04-18 | International Business Machines Corporation | Providing customized digital media marketing content directly to a customer |
US9846883B2 (en) | 2007-04-03 | 2017-12-19 | International Business Machines Corporation | Generating customized marketing messages using automatically generated customer identification data |
US9031858B2 (en) | 2007-04-03 | 2015-05-12 | International Business Machines Corporation | Using biometric data for a customer to improve upsale ad cross-sale of items |
US9031857B2 (en) | 2007-04-03 | 2015-05-12 | International Business Machines Corporation | Generating customized marketing messages at the customer level based on biometric data |
US9092808B2 (en) | 2007-04-03 | 2015-07-28 | International Business Machines Corporation | Preferred customer marketing delivery based on dynamic data for a customer |
US9361623B2 (en) | 2007-04-03 | 2016-06-07 | International Business Machines Corporation | Preferred customer marketing delivery based on biometric data for a customer |
US8019661B2 (en) | 2007-11-26 | 2011-09-13 | International Business Machines Corporation | Virtual web store with product images |
US8065200B2 (en) | 2007-11-26 | 2011-11-22 | International Business Machines Corporation | Virtual web store with product images |
US8253727B2 (en) | 2008-03-14 | 2012-08-28 | International Business Machines Corporation | Creating a web store using manufacturing data |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2012045B (en) * | 1977-12-22 | 1982-07-21 | Carbocraft Ltd | Infrared surveillance systems |
DE2847233C2 (en) * | 1978-10-30 | 1983-12-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for finding and identifying modulated radiation sources close to the horizon |
US4375034A (en) * | 1980-07-28 | 1983-02-22 | American District Telegraph Company | Passive infrared intrusion detection system |
GB2097625B (en) * | 1981-04-23 | 1985-06-19 | Ferranti Ltd | Airborne observation device |
GB2149258B (en) * | 1983-11-04 | 1987-03-11 | Ferranti Plc | Image correction system |
GB2180714B (en) * | 1985-08-22 | 1989-08-16 | Rank Xerox Ltd | Image apparatus |
GB2189365A (en) * | 1986-03-20 | 1987-10-21 | Rank Xerox Ltd | Imaging apparatus |
DE3615946A1 (en) * | 1986-05-12 | 1987-11-19 | Siemens Ag | Space condition sensor |
DE3825757B4 (en) * | 1988-07-29 | 2004-09-23 | Delphi Automotive Systems Deutschland Gmbh | Method of monitoring a room |
-
1990
- 1990-08-25 GB GB909018709A patent/GB9018709D0/en active Pending
-
1991
- 1991-08-22 DE DE69124097T patent/DE69124097T2/en not_active Expired - Fee Related
- 1991-08-22 GB GB9118157A patent/GB2247592B/en not_active Revoked
- 1991-08-22 WO PCT/GB1991/001425 patent/WO1992003806A1/en active IP Right Grant
- 1991-08-22 EP EP91915509A patent/EP0544770B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9203806A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE69124097T2 (en) | 1997-08-14 |
GB9118157D0 (en) | 1991-10-09 |
GB2247592B (en) | 1994-10-05 |
GB9018709D0 (en) | 1990-10-10 |
WO1992003806A1 (en) | 1992-03-05 |
DE69124097D1 (en) | 1997-02-20 |
GB2247592A (en) | 1992-03-04 |
EP0544770B1 (en) | 1997-01-08 |
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