WO2005104533A1 - Ameliorations dans et concernant un equipement de surveillance - Google Patents

Ameliorations dans et concernant un equipement de surveillance Download PDF

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Publication number
WO2005104533A1
WO2005104533A1 PCT/GB2005/001485 GB2005001485W WO2005104533A1 WO 2005104533 A1 WO2005104533 A1 WO 2005104533A1 GB 2005001485 W GB2005001485 W GB 2005001485W WO 2005104533 A1 WO2005104533 A1 WO 2005104533A1
Authority
WO
WIPO (PCT)
Prior art keywords
camera
viewing
view
field
primary
Prior art date
Application number
PCT/GB2005/001485
Other languages
English (en)
Inventor
Douglas Roy Horrocks
Original Assignee
Douglas Roy Horrocks
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
Priority claimed from GB0408787A external-priority patent/GB0408787D0/en
Application filed by Douglas Roy Horrocks filed Critical Douglas Roy Horrocks
Priority to EP05735908A priority Critical patent/EP1757086A1/fr
Publication of WO2005104533A1 publication Critical patent/WO2005104533A1/fr

Links

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
    • G08B13/1963—Arrangements allowing camera rotation to change view, e.g. pivoting camera, pan-tilt and zoom [PTZ]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1066—Beam splitting or combining systems for enhancing image performance, like resolution, pixel numbers, dual magnifications or dynamic range, by tiling, slicing or overlapping fields of view
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • 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
    • G08B13/19632—Camera support structures, e.g. attachment means, poles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/58—Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source

Definitions

  • the present invention relates to improvements in or relating to surveillance equipment and in particular, although not exclusively, to a multi view closed circuit television camera.
  • the cameras may provide vital information about traffic flow or traffic incidents.
  • the cameras may also help in determining fault in traffic accidents.
  • One of the main disadvantages of the prior art security cameras is that they can only see in the direction they are pointing and within the field of view afforded by the lens fitted to the camera.
  • Sophisticated motor drives may be used to point the camera in a different direction but the cameras still only have one field of view.
  • Such cameras are complex pieces of equipment and are expensive to purchase and install. The complexity of such heavy duty motor drives increasing the cost further. To provide adequate security camera coverage over a selected area many cameras are often required which can further increase the cost.
  • a viewing attachment for a camera apparatus, said camera apparatus having a field of view about a viewing axis, the attachment comprising a viewing means arranged to permit the camera apparatus to observe a first image lying inside of said field of view, and to direct into a portion of said field of view a second image lying in a further field of view outside of said field of view, said further field of view being about a further viewing axis angled to said camera viewing axis, wherein the viewing means includes a primary reflecting surface positioned outside of the field of view of the camera and a secondary reflective surface positioned within the field of view of the camera, said camera operable to view said second image via said reflective surfaces.
  • An attachment so arranged can provide a single lens camera apparatus with the capability of viewing outside the ordinary field of view of the lens.
  • the attachment thus enables the camera to have a primary field of view afforded by the camera lens, and a secondary, supplementary field of view afforded by the viewing means.
  • the provision of primary and secondary reflective surfaces ensures that the second image is not observed by the camera in a reversed manner with respect to the first image.
  • the primary field of view being substantially about the normal of the lens and the supplementary field of view being substantially about an axis at an angle to the normal. This provides the advantage that the axis of the supplementary field of view and the normal are not parallel to provide the camera apparatus with enhanced viewing ability.
  • the attachment can be retrofitted to an existing camera apparatus which improves the functionality of the camera apparatus. Consequently a camera provided with an attachment according to the present invention is provided with an enhanced field of view. Accordingly fewer cameras may be required to provide a given field of view. This has the advantage of reducing the cost of providing adequate security coverage.
  • the attachment includes a member attachable to a camera apparatus so as to lie substantially parallel to a lens of the camera apparatus, the member carrying a first bracket to which the primary reflective surface is mounted, and a second bracket to which the secondary reflective surface is mounted.
  • first and second brackets are movably mounted to the member.
  • an intermediate bracket is provided between the first bracket and the primary reflective surface.
  • a camera apparatus having a field of view about a viewing axis, the camera apparatus further including a viewing means operable to permit the camera apparatus to observe a first image lying inside of said field of view, and to direct into a portion of said field of view a second image lying in a further field of view outside of said field of view, said further field of view being about a further viewing axis angled to said camera axis, wherein the viewing means includes a primary reflective surface and a secondary reflective surface, said camera operable to view said second image via said reflective surfaces.
  • a camera apparatus so provided incorporates the viewing means into the body of the camera device.
  • the viewing means may be incorporated into a protective housing which contains the camera.
  • Such housings are typically provided so as to provide the camera with protection against weather factors such as rain.
  • the camera apparatus may be of any suitable type. Preferably the camera apparatus is operable to relay a moving image.
  • the camera apparatus may be of the type commonly referred to a close circuit television or CCTV camera.
  • the camera apparatus may be a digital camera or a webcam device.
  • the reflective surfaces may be any suitably polished surface such as for example metal, glass, plastic, ceramic material or combination thereof forming a mirror.
  • the reflective surface may be supported upon an appropriate substrate or backing.
  • the viewing means may be provided with a plurality of primary and secondary reflective surfaces. Said primary and secondary reflective surfaces may be arranged in any suitable configuration. In a preferred embodiment the viewing means comprise two primary and secondary reflective surfaces. The secondary reflective surfaces may be provided on a common body. The primary reflective surfaces are preferably spaced from one another having a gap therebetween. The gap provides the useful function of allowing the camera to observe within the field of view of the lens. The or each reflective surface may preferably be planar. In an alternative embodiment the viewing means are adapted to conduct an image therethrough. Such a viewing means may comprise, for example, a prism or an optic fibre.
  • the or each primary reflective surface is movable relative to the camera apparatus. Such movement may be in any direction including, for example, towards and away from the camera apparatus, and up and down relative to the camera apparatus. Such movement may also enable the plane of the primary reflective surface to be adjusted relative to the camera apparatus and in a preferred embodiment the plane is adjustable by means of a pivot provided at one edge of the or each reflective surface.
  • the or each primary reflective surface may alternatively be pivotable about one or more axes passing through the body or bodies thereof. Pivoting may thus be enabled in the vertical or horizontal direction or in both directions.
  • the movement of the or each primary reflective surface may be performed by hand.
  • the primary reflective surface may be movable by the provision of one or more motors.
  • the motors may be of any appropriate type. This has the advantage that only the primary reflective surfaces are required to be motorised instead of the whole of the camera to enable viewing in different directions.
  • the or each secondary reflective surface may have a fixed orientation relative to the camera apparatus.
  • each secondary reflective surface is mounted on a common body, the common body being in spaced relation relative to the camera apparatus.
  • the or each secondary reflective surface may be movable to a position out of the field of view of the camera lens.
  • the or each secondary reflective surface may be pivotably mounted so as to be movable out of the field of view of the camera lens.
  • each secondary reflective surface relative to the camera apparatus may be adjustable. Such adjustment may be achieved by hand or by the provision of one or more motors.
  • the viewing means can be moved out of the field of view of the camera apparatus. This provides the advantage that the whole normal field of view of the camera can be utilised uninterrupted if required. This may for example be useful when an incident is observed using the viewing means and then the camera apparatus is moved to view the incident with the whole field of view with the viewing means moved out of the field of view of the camera apparatus.
  • a viewing attachment for an optical sensor, said optical sensor having a field of view about a viewing axis
  • the attachment comprising a viewing means operable to permit the optical sensor to observe a first image lying inside of said field of view, and to direct into a portion of said field of view a second image lying in a further field of view outside of said field of view, said further field of view being about a further viewing axis angled to said optical sensor viewing axis
  • the viewing means includes a primary reflective surface and a second reflective surface, said optical sensor operable to view said second image via said reflective surfaces.
  • an optical sensor apparatus having a field of view about a viewing axis, the optical sensor apparatus further including a viewing means operable to permit the optical sensor apparatus to observe a first image lying inside of said field of view, and to direct into a portion of said field of view a second image lying in a further field of view outside of said field of view, said further field of view being about a further viewing axis angled to said optical sensor viewing axis, wherein the viewing means includes a primary reflective surface and a second reflective surface, said optical sensor operable to view said second image via said reflective surfaces.
  • the optical sensor may be configured to detect the presence or absence of light impinging thereon.
  • the sensor may be operable to detect changes in the intensity of light impinging thereupon.
  • the sensor may be configured to detect light within the visible spectrum and additionally may detect infra red and ultraviolet radiation.
  • the sensor apparatus and attachment of the third and fourth embodiments may include an illumination means operable to transmit electromagnetic energy along the viewing axes.
  • Figure la shows a perspective view of a closed circuit television camera attachment according to the present invention
  • Figure lb shows a diagrammatic representation of a television screen for a closed circuit television camera fitted with the attachment of figure la;
  • Figure 2 shows a perspective view of an attachment according to the present invention with a motor drive
  • Figure 3 shows a perspective view of an alternative embodiment to the attachment of figure la;
  • Figure 4 shows a perspective view of a further embodiment of an attachment according to the present invention.
  • Figures 5a and 5b show simplified side views of the attachment of figure 4.
  • FIGS 6a, 6b and 6c show views which may be observed with the attachment of figures 4, 5a and 5b.
  • the attachment 10 comprises two primary mirrors 12, 14 and two secondary mirrors 16,18.
  • the primary mirrors 12, 14 are spaced apart so as to provide a channel therethrough and are adjustably fixed relative to the camera lens 20 by a beam 22.
  • the primary mirrors 12, 14 are mounted at rotational mounting points 24, 26 which provides for pivotable movement of each primary mirror 12, 14 in directions X and Y.
  • the rotational mounting points 24, 26 may be provided with locking bolts to lock the primary mirrors 12, 14 in a desired position.
  • the beam 22 is attached to a camera 30 with screws 32.
  • the secondary mirrors 16, 18 are fixed relative to the camera 30 with screws 28 at a distance of approximately 25mm from the lens 20.
  • the camera 30 is mounted on a base 34.
  • the primary mirrors 12, 14 of the attachment in Figure la are positioned relative to the camera lens 20 to enable the lens 20 to observe outside of the ordinary field of view of the lens 20.
  • the primary mirrors 12, 14 are positioned at approximately 105° to the normal and the secondary mirrors 16, 18 are fixed at approximately 110° to the normal so that the lens 20 can observe at an angle of approximately 170° to the normal.
  • the mirrors 12, 14 are adjustable by hand and are provided with sufficient friction to inhibit them from being moved under typical operation of the camera 30.
  • the attachment 10 illustrated in Figure la having adjustable primary mirrors 12, 14 and statically fixed secondary mirrors 16, 18 is particularly useful for traffic signal cameras where one camera 30 can be used to survey a number of directions at one time e.g. up and down the same street.
  • the attachment 10 can also be used to observe two streets which are perpendicular to one another e.g. a cross roads with traffic lights.
  • FIG. lb there is shown a diagrammatic representation of a television screen for a camera fitted with the attachment of Figure la, generally designated 40.
  • the screen 40 has three segments A, B and C.
  • the segment A corresponds to the view observed from the left hand primary mirror 14.
  • the segment B corresponds to the view observed from the right hand primary mirror 12.
  • the segment C corresponds to the view in the straight ahead direction below the primary and secondary mirrors 12, 14, 16 and 18.
  • FIG. 2 there is shown an alternative embodiment for an attachment for a closed circuit television camera in accordance with the present invention, generally designated 50.
  • the based 34 has a mirror mounting, generally designated 52.
  • the beam 32 is provided with a rack 54 thereon, and a motor 56 mounted on the camera to move the secondary mirrors 16, 18 in the fore and aft direction. Fore and aft movement of the secondary mirrors 16, 18 relative to the lens 20 can be used to provide a zoom function of the camera 30.
  • the mirror mounting 52 shown in Figure 2 comprises a gimbals mechanism having a trough 58 pivotably mounted with bearings 60 on two trough supports 62, the trough supports 62 fixed to the base 34.
  • the trough 58 houses respective drives 64, 66 for the primary mirrors 12, 14.
  • the trough 58 can be controlled about an axis 68 to provide improved coverage by the lens 20.
  • the trough 58 can also be moved in a fore and aft direction relative to the camera (not shown) to control the distance of the primary mirrors 12, 14 relative to the camera 30.
  • the drives 64, 66 of the attachment 50 illustrated in Figure 2 can be driven independently.
  • the drives 64, 66 can be controlled with a joystick (not shown) by an operator in a control room to obtain views of a number of areas around the camera 30.
  • the attachments 10, 50 illustrated in Figures la and 2 respectively can be adapted to fit any existing security or traffic camera.
  • the attachments 10, 50 may be encapsulated within the body of the camera and sold as complete units.
  • the attachments 10, 50 illustrated in Figures la and 2 respectively may have numerous set of primary and secondary reflective surfaces so that one camera can be made to view in multiple directions. This may significantly reduce the installation cost of security or traffic light cameras which in turn may reduce the maintenance costs of such systems.
  • FIG. 3 there is shown a perspective view of an alternative embodiment to the attachment of Figure la. Like features to the attachment of Figure la are shown with like reference numerals.
  • the beam 22 is movably attached to the camera 30 with a hand operable screw 80.
  • the hand operable screw 80 has a flange 82 which is adapted to contact the periphery of an elongate hole 84 in the beam 22. In this manner the beam 22 can be adjusted manually to provide for fore and aft movement of the secondary mirrors 16, 18 relative to the lens 20.
  • the beam 22 in Figure 3 has lateral extensions 86, 88 associated with a respective primary mirror 12, 14.
  • Each of the extensions 86, 88 has a respective arcuate hole 90, 92 which are adapted to receive a respective hand operable screw 94, 96.
  • the hand operable screws 94, 96 permit the position of the primary mirrors 12, 14 to be adjusted and set.
  • FIG. 1 a further embodiment of an attachment, generally designated 100 for a close circuit television camera 102.
  • the attachment 100 is operable in the same manner as that for the previously described embodiments by permitting the camera to view images which are outside of the field of view of the camera lens.
  • the attachment 100 includes a bracket 104 fitable to the casing 106 of the camera 102 which includes a jib or extension portion 108 which extends forward from the casing 106 substantially parallel to the lens 110 of the camera 102.
  • the bracket 104 is connected to the casing 106 by a set screw 116 which passes through a slot 118 of the bracket 104.
  • bracket 104 may be attached to the casing 106 by other suitable means. It will further be appreciated that the bracket 104 need not be mounted to the casing 106. For example, the bracket 104 may be mounted to a pole or mounting arrangement to which the camera 102 is fitted.
  • the rnirror assembly 112 is pivotably mounted to the end of the jib 108 distal to the casing 106 and is movable as indicated by arrow 114.
  • the mirror assembly 112 includes two primary mirrors 122,124 and two secondary mirrors 126,128.
  • the mirrors 122,124,126,128 are arranged in the same manner described with reference to the preceding embodiments whereby light impinging upon a primary mirror 122,124 is reflected onto a secondary mirror 126, 128 which in turn reflects the light into the camera lens 110.
  • the mirrors 122,124,126,128 are mounted on an arrangement of brackets. Firstly there is provided a substantially "Y" shaped main bracket 130 which is pivotably connected to the jib 108. Depending from each arm of the main bracket 130 is a mirror bracket 132 to each of which is connected a primary mirror 122,124. The secondary mirrors 126,128 are mounted to the stem of main bracket 130. Each mirror bracket 132 is connected to the main bracket 130 by a set screw 134 which extends through an arcuate slot 136 of the main bracket 130. Each primary mirror 122,124 is connected to its respective mirror bracket 132 by a further set screw 138 which extends through an arcuate slot 140 provided in a mounting flange 142 provided on the rear surface of the mirror 122,124.
  • set screws 134,138 and arcuate slots 136,140 enables the primary mirrors 122,124 to be swung relative to the secondary mirrors 126,128 as indicated by arrow X, rolled relative to the secondary mirrors 126,128 as indicated by arrow Y, and moved towards and away from the secondary mirrors 126,128 as indicated by arrow Z. It will thus be appreciated that the position of the primary mirrors may be readily adjusted to ensure that the desired view is presented to the camera lens 110 and further that the attachment 100 can be readily adapted to suit cameras of differing configurations.
  • the mirror assembly 112 is pivotably connected to the jib 18. Accordingly the mirror assembly 112 as a whole may be moved from the position shown in figure 5a whereupon the mirrors 122,124,126,128 are arranged to feed additional views into an upper portion of the camera lens 110, to the position shown in figure 5b whereupon the mirror assembly 112 is unable to direct additional views to the camera lens 110. It will be understood that when the rnirror assembly 112 is in the position shown in figure 5b the view of the camera lens 110 is unobstructed as the view of the camera lens 110 passes through the branch of the "Y" shaped main bracket 130.
  • the inclination angle of the mirror assembly 112 may be set at an angle between the extremes shown in figures 5a and 5b so as to assist in the setting of the mirrors 122,124,126,128 at desired positions to direct the required views into the camera lens
  • the secondary mirrors 126,128 may be pivotably connected to the jib 108 independently of the main bracket 130 which carries the primary mirrors 122,124. In such an embodiment the secondary mirrors 126,128 may be pivoted out of the field of view of the camera lens 110 as indicated by arrow 144.
  • the camera is provided with a secondary reflective surface in the field of view of the camera lens and a primary reflective surface to direct an image into the camera via the secondary reflected surface.
  • the principles of the present invention may be utilised for other applications whereupon it is required to direct light to an appropriately configured collector. Such alternative applications may include the direction of, for example, infra red or laser light to an appropriate receiver. The principles of the present invention may thus be utilised in such applications as, for example, movement sensors and remote traffic sensors.
  • the above described embodiments illustrate attachments where there are provided two pairs of primary and secondary mirrors which enable to additional views to be directed into the camera lens. It will be appreciated that only a single pair of primary and secondary mirrors may be employed where only one additional view is required.
  • an attachment according to the present invention may be mounted to the underside of a camera apparatus.
  • the camera would be provided with a view illustrated in figure 6c where segment A corresponds to the view observed from the left hand primary mirror. Segment B corresponds to the view observed from the right hand primary mirror, and segment C corresponds to the view in the straight ahead direction above the primary and secondary mirrors.
  • segment A corresponds to the view observed from the left hand primary mirror.
  • Segment B corresponds to the view observed from the right hand primary mirror
  • segment C corresponds to the view in the straight ahead direction above the primary and secondary mirrors.
  • This is in contrast to the view illustrated in figure 6b where the attachment is mounted to top of the camera, and the view illustrated in figure 6a where either the mirror assembly as a whole or the secondary mirrors are pivoted in a manner such that the view of the camera lens 'is not obstructed.
  • a viewing apparatus may be provided as a retro-fittable device for an existing camera or, alternatively, may be fitted to or otherwise incorporated into a new camera during the manufacture thereof.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Accessories Of Cameras (AREA)

Abstract

La présente invention a trait à un accessoire de vue pour un appareil de prise de vue, ledit appareil de prise de vue présentant un champ autour d'un axe de vue, l'accessoire comportant un moyen de visualisation agencé pour permettre l'observation par l'appareil de prise de vue d'une première image située à l'intérieur du champ de ladite caméra, et l'orientation dans une portion dudit champ d'une deuxième image située dans un autre champ à l'extérieur dudit champ de la caméra, ledit autre champ se trouvant autour d'un autre axe de vue incliné vers ledit axe de vue de la caméra, ledit moyen de visualisation comportant une surface réfléchissante primaire positionnée à l'extérieur du champ de la caméra et une surface réfléchissante secondaire positionnée à l'intérieur du champ de la caméra, de sorte que la caméra peut visualiser ladite deuxième image via lesdites surfaces réfléchissantes simultanément avec la première image.
PCT/GB2005/001485 2004-04-20 2005-04-20 Ameliorations dans et concernant un equipement de surveillance WO2005104533A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05735908A EP1757086A1 (fr) 2004-04-20 2005-04-20 Ameliorations dans et concernant un equipement de surveillance

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0408787.0 2004-04-20
GB0408787A GB0408787D0 (en) 2004-04-20 2004-04-20 Improvements in or relating to surveillance equipment
GB0504557A GB0504557D0 (en) 2004-04-20 2005-03-04 Improvements in or relating to surveillance equipment
GB0504557.0 2005-03-04

Publications (1)

Publication Number Publication Date
WO2005104533A1 true WO2005104533A1 (fr) 2005-11-03

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ID=34965372

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Application Number Title Priority Date Filing Date
PCT/GB2005/001485 WO2005104533A1 (fr) 2004-04-20 2005-04-20 Ameliorations dans et concernant un equipement de surveillance

Country Status (2)

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EP (1) EP1757086A1 (fr)
WO (1) WO2005104533A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9892298B2 (en) 2012-02-06 2018-02-13 Cognex Corporation System and method for expansion of field of view in a vision system
US11966810B2 (en) 2012-02-06 2024-04-23 Cognex Corporation System and method for expansion of field of view in a vision system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058831A (en) * 1976-09-08 1977-11-15 Lectrolarm Custom Systems, Inc. Panoramic camera scanning system
US4167756A (en) * 1976-09-08 1979-09-11 Lectrolarm Custom Systems, Inc. Split image camera system
US4288819A (en) * 1979-05-10 1981-09-08 Williams Robert T Multi-field imaging device
EP0751041A2 (fr) * 1995-06-27 1997-01-02 Yoshihisa Furuta Dispositif pour vérifier la vue latérale à la partie avant ou arrière d'un véhicule
GB2368221A (en) * 2000-08-31 2002-04-24 Lee Scott Friend Camera apparatus having both omnidirectional and normal view imaging modes.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264928A (en) * 1979-11-05 1981-04-28 Schober Gary W Conference video system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058831A (en) * 1976-09-08 1977-11-15 Lectrolarm Custom Systems, Inc. Panoramic camera scanning system
US4167756A (en) * 1976-09-08 1979-09-11 Lectrolarm Custom Systems, Inc. Split image camera system
US4288819A (en) * 1979-05-10 1981-09-08 Williams Robert T Multi-field imaging device
EP0751041A2 (fr) * 1995-06-27 1997-01-02 Yoshihisa Furuta Dispositif pour vérifier la vue latérale à la partie avant ou arrière d'un véhicule
GB2368221A (en) * 2000-08-31 2002-04-24 Lee Scott Friend Camera apparatus having both omnidirectional and normal view imaging modes.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1757086A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9892298B2 (en) 2012-02-06 2018-02-13 Cognex Corporation System and method for expansion of field of view in a vision system
US10445544B2 (en) 2012-02-06 2019-10-15 Cognex Corporation System and method for expansion of field of view in a vision system
US11966810B2 (en) 2012-02-06 2024-04-23 Cognex Corporation System and method for expansion of field of view in a vision system

Also Published As

Publication number Publication date
EP1757086A1 (fr) 2007-02-28

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