SE504329C2 - Device for stabilized image reproduction - Google Patents

Device for stabilized image reproduction

Info

Publication number
SE504329C2
SE504329C2 SE9502049A SE9502049A SE504329C2 SE 504329 C2 SE504329 C2 SE 504329C2 SE 9502049 A SE9502049 A SE 9502049A SE 9502049 A SE9502049 A SE 9502049A SE 504329 C2 SE504329 C2 SE 504329C2
Authority
SE
Sweden
Prior art keywords
unit
azimuth
elevation
video signal
correction
Prior art date
Application number
SE9502049A
Other languages
Swedish (sv)
Other versions
SE9502049L (en
SE9502049D0 (en
Inventor
Jens Einarsson
Original Assignee
Saab Dynamics Ab
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 Saab Dynamics Ab filed Critical Saab Dynamics Ab
Priority to SE9502049A priority Critical patent/SE504329C2/en
Publication of SE9502049D0 publication Critical patent/SE9502049D0/en
Priority to PCT/SE1996/000690 priority patent/WO1996038978A1/en
Priority to AU60198/96A priority patent/AU6019896A/en
Publication of SE9502049L publication Critical patent/SE9502049L/en
Publication of SE504329C2 publication Critical patent/SE504329C2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7864—T.V. type tracking systems
    • G01S3/7865—T.V. type tracking systems using correlation of the live video image with a stored image
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/681—Motion detection
    • H04N23/6811—Motion detection based on the image signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Studio Devices (AREA)

Abstract

A device for stabilized image reproduction is described. It comprises a video camera (1) for visible or infrared light, which outputs a first video signal (2) and is mounted on a platform (3) by means of a first motor rotatable in azimuth and a second motor rotatable in elevation. Moreover, the device comprises a control stick (4) for manual control by means of a first unit (5), for controlling said platform in azimuth and elevation, and a display device (6) for reproduction of an image obtained from the first video signal. The device is in particular characterized by a second unit (7), to which said first video signal is provided, comprising at least a first memory for detection of the difference in azimuth and elevation between successive images obtained from the first video signal (2), and further by a third unit (8) for image correction. The second unit (7) is arranged to retransmit the first video signal (2) and a first correction signal (9) to the third unit (8) for a stabilizing image correction in azimuth and elevation, and to transmit a second correction signal (10) to the first unit (5) for a stabilizing control of the platform (3) in azimuth and in elevation. A fourth unit (11) is arranged to optionally make, when so commanded, the first correction signal (9) and/or the second correction signal (10) act on the third unit (8) and the first unit (5) respectively.

Description

504 329 i I det följande beskrives en utföringsform med hänvisning till den bifogade figuren 1, som visar ett schema över en anordning enligt uppfinningen. 504 329 i In the following an embodiment is described with reference to the attached figure 1, which shows a diagram of a device according to the invention.

I figuren betecknas en videokamera med 1, monterad på en plattform 3, som är vridbar i azimut resp elevation medelst en forsta och en andra motor. En styrspak 4 är inrättad att via signaler 16 och 17 påverka en första enhet 5 för styrning via signaler 18 och 19 av plattformen 3 i azimut och elevation. Videokarneran 1 avger en första videosignal 2, som tillfóres en andra enhet 7 för detektering av differens i azimut och elevation mellan två på varandra följande bildder från den första videosignalen. Den andra enheten 7 vidareutsänder den första videosignalen 2 samt en första korrektionssignal 9 till en tredje enhet 8 för stabiliserande bildkorrektion i azimut och elevation och sänder så en korrigerad andra videosignal 12 till en bildskärm 6. De andra och tredje enhetema 7 och 8 bildar tillsammans ett i och för sig känt korreleringsorgan Den andra enheten 7 sänder även en andra korrigeringssignal 10 till den första enheten 5 för stabiliserande styrning av plattformen i azimut och elevation. En fjärde enhet ll är inrättad att på kommando från styrspaken 4 via en modvalsignal 13 påverka den första enheten 5 resp den tredje enheten 8 så att första korrigeringssignalen 9 och/eller den andra korrigeringssignalen 10 påverkar tredje enheten 8 resp den första enheten 5 via signaler 14 och 15. Genom aktivering av styrspaken kan man sålunda dels styra plattfonnen, så att videokameran riktas efter önskemål, och dels välja verkningsmod, d v s antingen med enbart stabilisering av plattformen 3 eller enbart stabilisering sv själva bilden, eller en kombination av båda Därigenom kan stabiliseringen av bilden optimeras.In the figure, a video camera is denoted by 1, mounted on a platform 3, which is rotatable in azimuth or elevation by means of a first and a second motor. A control lever 4 is arranged to actuate via signals 16 and 17 a first unit 5 for control via signals 18 and 19 of the platform 3 in azimuth and elevation. The video core 1 emits a first video signal 2, which is supplied to a second unit 7 for detecting the difference in azimuth and elevation between two successive images from the first video signal. The second unit 7 transmits the first video signal 2 and a first correction signal 9 to a third unit 8 for stabilizing image correction in azimuth and elevation and then sends a corrected second video signal 12 to a monitor 6. The second and third units 7 and 8 together form a correlation means known per se The second unit 7 also sends a second correction signal 10 to the first unit 5 for stabilizing control of the platform in azimuth and elevation. A fourth unit 11 is arranged to influence the first unit 5 and the third unit 8, respectively, at the command of the control lever 4 via a mode selection signal 13, so that the first correction signal 9 and / or the second correction signal 10 affects the third unit 8 and the first unit 5 via signals 14 and 15. By activating the joystick you can thus partly control the platform, so that the camcorder is directed as desired, and partly choose the mode of action, ie either with only stabilization of the platform 3 or only stabilization sv the image itself, or a combination of both the image is optimized.

Claims (1)

1. 504 329 Patentkrav Anordning, innefattande: - en videokamera (1), för synligt eller IR-ljus, avgivande en första videosignal (2), monterad på en plattform (3), medelst en första motor vridbar i azimut och en andra motor vridbar i elevation, - en styrspak (4) för manuell styrning, via en första enhet (5), för styrning i azimut och elevation av den nämnda plattformen (3), - en bildskärm (6) för återgivande av en bild erhâllen från den första videosignalen (2), kännetecknad av - en andra enhet (7), till vilken den nämnda första videosignalen (2) föres, innefattande åtminstone ett första minne, för detektering av differens i azimut och elevation mellan två på varandra följande bilder från den första videosignalen (2), - en tredje enhet (8) för bildkorrektion, varvid den andra enheten (7) är inrättad att vidareutsända den första videosignalen (2) samt en första korrigeringssignal (9) till den tredje enheten (8) för stabiliserande bildkorrektion i azimut och elevation, samt att utsända en andra korrigeringssignal (10) till den första enheten (5) för stabiliserande styrning av plattformen (3) i azimut och elevation, varvid en fjärde enhet (1 1) är inrättad att på kommando, valfritt låta den första korrigeringsignalen (9) och /eller den andra korrigeringssignalen ( 10) verka på den tredje enheten (8) resp den första enheten (5).A device, comprising: - a video camera (1), for visible or IR light, emitting a first video signal (2), mounted on a platform (3), by means of a first motor rotatable in azimuth and a second motor rotatable in elevation, - a control lever (4) for manual control, via a first unit (5), for control in azimuth and elevation of said platform (3), - a monitor (6) for reproducing an image obtained from the the first video signal (2), characterized by - a second unit (7), to which said first video signal (2) is applied, comprising at least a first memory, for detecting difference in azimuth and elevation between two successive images from the first the video signal (2), - a third unit (8) for image correction, the second unit (7) being arranged to transmit the first video signal (2) and a first correction signal (9) to the third unit (8) for stabilizing image correction in azimuth and elevation, as well as sending one second correction signal (10) to the first unit (5) for stabilizing control of the platform (3) in azimuth and elevation, wherein a fourth unit (1 1) is arranged to, on command, optionally let the first correction signal (9) and / or the second correction signal (10) acts on the third unit (8) and the first unit (5), respectively.
SE9502049A 1995-06-02 1995-06-02 Device for stabilized image reproduction SE504329C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9502049A SE504329C2 (en) 1995-06-02 1995-06-02 Device for stabilized image reproduction
PCT/SE1996/000690 WO1996038978A1 (en) 1995-06-02 1996-05-28 A device for the stabilized reproduction of an image
AU60198/96A AU6019896A (en) 1995-06-02 1996-05-28 A device for the stabilized reproduction of an image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9502049A SE504329C2 (en) 1995-06-02 1995-06-02 Device for stabilized image reproduction

Publications (3)

Publication Number Publication Date
SE9502049D0 SE9502049D0 (en) 1995-06-02
SE9502049L SE9502049L (en) 1996-12-03
SE504329C2 true SE504329C2 (en) 1997-01-13

Family

ID=20398518

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9502049A SE504329C2 (en) 1995-06-02 1995-06-02 Device for stabilized image reproduction

Country Status (3)

Country Link
AU (1) AU6019896A (en)
SE (1) SE504329C2 (en)
WO (1) WO1996038978A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330266A (en) * 1997-10-10 1999-04-14 Harlequin Group Limited The Generating camera image data for an image processing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473462B1 (en) * 1990-08-31 1997-01-15 Victor Company Of Japan, Ltd. Imaging device with automatic focusing function
JP2803072B2 (en) * 1990-10-18 1998-09-24 富士写真フイルム株式会社 Image stabilization device
KR950008698B1 (en) * 1992-06-09 1995-08-04 현대전자산업 주식회사 Manufacturing method of field oxide of semiconductor device

Also Published As

Publication number Publication date
SE9502049L (en) 1996-12-03
WO1996038978A1 (en) 1996-12-05
AU6019896A (en) 1996-12-18
SE9502049D0 (en) 1995-06-02

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