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WO1997031484A1 - Systeme de reconnaissance optique large champ - Google Patents

Systeme de reconnaissance optique large champ Download PDF

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Publication number
WO1997031484A1
WO1997031484A1 PCT/JP1997/000480 JP9700480W WO9731484A1 WO 1997031484 A1 WO1997031484 A1 WO 1997031484A1 JP 9700480 W JP9700480 W JP 9700480W WO 9731484 A1 WO9731484 A1 WO 9731484A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
wide
image processing
visual recognition
processing device
Prior art date
Application number
PCT/JP1997/000480
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Yokota
Original Assignee
Kabushiki Kaisha Yokota Seisakusho
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 Kabushiki Kaisha Yokota Seisakusho filed Critical Kabushiki Kaisha Yokota Seisakusho
Priority to AU17341/97A priority Critical patent/AU1734197A/en
Priority to GB9818050A priority patent/GB2325815A/en
Publication of WO1997031484A1 publication Critical patent/WO1997031484A1/fr

Links

Classifications

    • 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
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources

Definitions

  • the present invention is an apparatus that obtains a wide range of images without blind spots without moving the viewpoint of shooting.
  • the present invention not only displays an image shot by a wide-angle lens, but also selects an image.
  • An image hereinafter, referred to as an “approximate original image” that approximates the original shape of the object (hereinafter, referred to as an “original image”) by correcting the image distortion of the selected area is also displayed. It concerns the device. Background art
  • the present invention solves these disadvantages of the conventional visual recognition device by introducing a photographing device, image processing device, and display device based on a new technical concept, and tolerates image distortion during the process of photographing an object without blind spots.
  • An object of the present invention is to perform an image processing for correcting an image distortion of a region of interest in the image so that an approximate original image of the object can be easily recognized. Disclosure of the invention
  • image distortion is tolerated, and image processing is performed to correct the image distortion of the region of interest in the image, so that an approximate original image of the object can be easily viewed. It can be observed over a wide range and a specific part can be visually recognized accurately.
  • the display device 3 may be a projection device that projects an image onto a substantially spherical screen via a wide-angle lens.
  • the installation position of the projection device is shifted from the central axis of the substantially spherical screen.
  • the image processing device 2 performs image correction processing so that the image is approximated to the original image when viewed from a position substantially on the center axis of the image screen projected from the installation position. Good.
  • FIG. 10 is a plan view showing the principle of the present invention.
  • FIG. 11 is a plan view showing the principle of the present invention.
  • the installation position of the imaging device 1 may be appropriately selected depending on the application.
  • an embodiment in which the imaging device 1 is installed on the ceiling of a room for monitoring and both the objects P 1 and P 2 can be visually recognized is shown in FIG. Is shown in In this example, four corners of the room, for example, points f1 to f4 in the figure may be used as the reference coordinate points.
  • FIG. 13 shows an embodiment in which three or more photographing devices 1 are installed inward with respect to a common object p to photograph, but in this case, the object is There is an advantage that 3D position information over the entire surface of the object can be obtained, and a 3D image can be obtained more precisely.
  • FIG. 14 shows an embodiment of the projection system, and shows a manner in which an image taken in a wide field of view is projected on a substantially spherical screen having a wide field of view by the reverse process.
  • the projection device (display device) 3 is positioned at the center of the screen so that the observer can observe the projected image from a position on the substantially central axis of the screen, which is a visually optimal position.
  • the one installed at the position shifted from the axis is shown.
  • the images gl ′ to g2, to g3 ′ projected from the position shifted from the center axis of the screen are the most original images g1 to g3 when observed from a position substantially on the center axis of the screen.
  • the image processing device 2 is configured to perform image processing for correcting a shift between a projection point and an observation viewpoint so that the image looks similar to 2 to g3.
  • the wide-angle lens of the photographing device 1 has a surface angle of 18
  • the imaging device 1 may be provided with an imaging member such as a solid-state imaging device that converts an image into an electric signal immediately after the lens at the tip of the imaging device 1.
  • the imaging member 1 may be provided via an image transmission unit such as a physical fiber. It may be connected to.
  • a device for illuminating the object may be provided.
  • the arithmetic processing in the surface image processing device 2 may be performed by hardware including fixed electronic circuits in the device 2 or by software incorporated in the device 2.
  • the image processing apparatus 2 is provided with a function as a so-called system controller.
  • the image storage devices 4 and 5 may be of a digital type or an analog type, and the storage medium is a semiconductor, a magnetic tape, Various known techniques such as a magnetic disk and an optical disk may be used. Of course, it may have a function of image data compression / decompression.
  • the communication device may be interposed between any of the photographing device 1, the image processing device 2, the display device 3, the image storage device 4; 5, and the image forming device 6 constituting the present invention.
  • the image can be a color image or a monochrome image. Furthermore, it can be used in combination with audio processing. In this case, sound can be collected with an omnidirectional microphone according to the wide field of view, or a stereo collection can be used to associate the image with the position of the sound source. A method such as sounding is also conceivable.
  • each device and member constituting the present invention can be variously selected based on well-known technology, and various design changes can be made within the scope of the present invention. Is not limited to the above embodiments.
  • the present invention is based on a new technical concept.
  • an imaging device equipped with a wide-angle lens, an image processing device, and a display device By introducing an imaging device equipped with a wide-angle lens, an image processing device, and a display device, the disadvantages associated with the blind spots of the conventional visual recognition device are eliminated, Image distortion, select an area of interest in the image, and perform image processing to correct the image distortion in that area, or obtain a stereoscopic image from simultaneous images using multiple imaging devices By performing image processing or performing image processing to reconstruct an image with a wider image area, an approximate original image of the target object can be easily visually recognized.
  • a monitoring device, a tracking device, a search device, Graphic recognition device, guidance device, endoscope device, simulation Such a visual recognition device that can be used in various fields such as a visualization device that can observe a wide area and accurately recognize a specific portion can be very successful.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne un système de reconnaissance optique champ large capable de reconnaître facilement l'image originale approximative d'un objet en tenant compte de la distorsion d'image dès la phase de prise de vue de l'objet puis en exécutant un processus de correction de la distorsion d'image. Ce système résout les problèmes imputables à la tache aveugle du système conventionnel de reconnaissance. En l'occurrence, le système de reconnaissance est constitué d'un module de prise de vue (1) pourvu d'une optique grand angle, d'un module de traitement d'image (2) permettant de corriger, par traitement arithmétique, l'image prise, pour restituer une image analogue à l'image originale, et d'un afficheur (3) permettant d'afficher l'image de sortie produite par le module de traitement d'image (2). Ce module de traitement d'image (2) sélectionne dans l'image prise une zone intéressante, puis exécute un traitement d'image destiné à corriger la distorsion d'image de la zone, à fournir une image stéréoscopique à partir des images prises simultanément par une pluralité d'appareils de prise de vue, et à reconfigurer une image présentant un angle d'image plus large, ce qui facilite la reconnaissance de l'image originale approximative d'un objet.
PCT/JP1997/000480 1996-02-23 1997-02-21 Systeme de reconnaissance optique large champ WO1997031484A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU17341/97A AU1734197A (en) 1996-02-23 1997-02-21 Wide visual-field recognizing system
GB9818050A GB2325815A (en) 1996-02-23 1997-02-21 Wide visual-field recognizing system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3616496 1996-02-23
JP8/36164 1996-02-23

Publications (1)

Publication Number Publication Date
WO1997031484A1 true WO1997031484A1 (fr) 1997-08-28

Family

ID=12462134

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/000480 WO1997031484A1 (fr) 1996-02-23 1997-02-21 Systeme de reconnaissance optique large champ

Country Status (3)

Country Link
AU (1) AU1734197A (fr)
GB (1) GB2325815A (fr)
WO (1) WO1997031484A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004242049A (ja) * 2003-02-06 2004-08-26 Hitachi Ltd マルチカメラ映像合成表示装置
JP2005277825A (ja) * 2004-03-25 2005-10-06 Hitachi Ltd マルチカメラ映像表示装置
JP2006020141A (ja) * 2004-07-02 2006-01-19 Denso Corp 表示制御装置
JP2009188980A (ja) * 2007-11-09 2009-08-20 Honeywell Internatl Inc ３６０度の視野をもつステレオカメラ
JP2014109480A (ja) * 2012-11-30 2014-06-12 Mitsutoyo Corp Ｘｙｚ直交測定装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001037028A1 (fr) * 1999-11-15 2001-05-25 Equal Reverse Thoughts Limited Procede ameliorant la perception de profondeur d'image

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0380239A (ja) * 1989-08-24 1991-04-05 Seiko Epson Corp 投写型液晶表示装置
JPH05346950A (ja) * 1991-12-19 1993-12-27 Eastman Kodak Co 三次元シーンを感知するための方法及び装置
JPH06501585A (ja) * 1991-05-13 1994-02-17 インタラクティブ　ピクチャーズ　コーポレイション 全視野静止カメラオリエンテーションシステム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0380239A (ja) * 1989-08-24 1991-04-05 Seiko Epson Corp 投写型液晶表示装置
JPH06501585A (ja) * 1991-05-13 1994-02-17 インタラクティブ　ピクチャーズ　コーポレイション 全視野静止カメラオリエンテーションシステム
JPH05346950A (ja) * 1991-12-19 1993-12-27 Eastman Kodak Co 三次元シーンを感知するための方法及び装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004242049A (ja) * 2003-02-06 2004-08-26 Hitachi Ltd マルチカメラ映像合成表示装置
JP2005277825A (ja) * 2004-03-25 2005-10-06 Hitachi Ltd マルチカメラ映像表示装置
JP2006020141A (ja) * 2004-07-02 2006-01-19 Denso Corp 表示制御装置
JP2009188980A (ja) * 2007-11-09 2009-08-20 Honeywell Internatl Inc ３６０度の視野をもつステレオカメラ
JP2014109480A (ja) * 2012-11-30 2014-06-12 Mitsutoyo Corp Ｘｙｚ直交測定装置

Also Published As

Publication number Publication date
AU1734197A (en) 1997-09-10
GB2325815A (en) 1998-12-02
GB9818050D0 (en) 1998-10-14

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