DE602006016108C5 - Optisches und digitales zoomen für eine abbildungseinrichtung - Google Patents

Optisches und digitales zoomen für eine abbildungseinrichtung Download PDF

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Publication number
DE602006016108C5
DE602006016108C5 DE602006016108.5A DE602006016108A DE602006016108C5 DE 602006016108 C5 DE602006016108 C5 DE 602006016108C5 DE 602006016108 A DE602006016108 A DE 602006016108A DE 602006016108 C5 DE602006016108 C5 DE 602006016108C5
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Germany
Prior art keywords
zooming
optical
digital
illumination
optical zooming
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Active
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DE602006016108.5A
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English (en)
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DE602006016108D1 (de
Inventor
Antti Wright
Anne Juvonen
Ossi Kalevo
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Nokia Technologies Oy
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Nokia Technologies Oy
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Classifications

    • 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
    • H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/71—Circuitry for evaluating the brightness variation
    • 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
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Microscoopes, Condenser (AREA)
  • Exposure Control For Cameras (AREA)
  • Image Input (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Lens Barrels (AREA)

Abstract

Method for digital imaging, wherein an image is formed through imaging optics onto a light sensitive image sensor in an imaging device, said imaging device being capable of both optical zooming and digital zooming, said method comprising- determining an amount of available illumination, determining a ratio between the optical zooming and the digital zooming based on said amount of available illumination,- performing the optical zooming and digital zooming according to said ratio, characterized in that- the optical zooming is only changed in quantized steps,- the amount of available illumination is categorized as one of low, bright and medium, and said ratio is determined such that-- under the low illumination, the digital zooming is performed in priority over optical zooming, wherein the optical zooming is used after a reasonable level of digital zooming is reached,-- under the medium illumination, the optical zooming is performed in combination with the digital zooming such that certain amount of optical zooming is performed, said certain amount being smaller than a maximum optical zooming, the rest of needed zoom amount is performed with the digital zooming, and-- under the bright illumination, the optical zooming is performed in priority over the digital zooming, wherein the optical zooming is performed until maximum optical zooming is reached after which the zooming is continued digitally.

Claims (23)

  1. Method for digital imaging, wherein an image is formed through imaging optics onto a light sensitive image sensor in an imaging device, said imaging device being capable of both optical zooming and digital zooming, said method comprising - determining an amount of available illumination, determining a ratio between the optical zooming and the digital zooming based on said amount of available illumination, - performing the optical zooming and digital zooming according to said ratio, characterized in that - the optical zooming is only changed in quantized steps, - the amount of available illumination is categorized as one of low, bright and medium, and said ratio is determined such that -- under the low illumination, the digital zooming is performed in priority over optical zooming, wherein the optical zooming is used after a reasonable level of digital zooming is reached, -- under the medium illumination, the optical zooming is performed in combination with the digital zooming such that certain amount of optical zooming is performed, said certain amount being smaller than a maximum optical zooming, the rest of needed zoom amount is performed with the digital zooming, and -- under the bright illumination, the optical zooming is performed in priority over the digital zooming, wherein the optical zooming is performed until maximum optical zooming is reached after which the zooming is continued digitally.
  2. The method according to claim 1, wherein the ratio is determined by comparing the determined amount of available illumination to predetermined illumination target values.
  3. The method according to claim 2, wherein the predetermined illumination target values define low, bright and medium illumination conditions.
  4. The method according to claim 2, wherein under low illumination the digital zooming is performed instead the optical zooming.
  5. The method according to claim 2, wherein under bright illumination the optical zooming is performed until maximum optical zooming is reached after which the zooming is continued digitally.
  6. The method according to claim 2, wherein under medium illumination the optical zooming is performed until a predetermined proportion of a maximum optical zooming is reached after which zooming is continued digitally.
  7. The method according to claim 1, wherein optical zooming is performed alternately with digital zooming.
  8. The method according to one of the claims 1 to 7, wherein digitally zooming is used first and, after this, said ratio between the optical zooming and the digital zooming is determined.
  9. Device for digital imaging comprising imaging optics and a light sensitive image sensor for which an image is formed through said imaging optics, said device being capable of both optical zooming and digital zooming further comprising - means for determining an amount of available illumination, said device being configured to determine a ratio between the optical zooming and the digital zooming based on said amount of available illumination, and to perform the optical zooming and the digital zooming according to said ratio, characterized in that the device is configured - so that the optical zooming can be only changed in quantized steps, - to categorize the amount of available illumination as one of low, bright and medium, and said ratio is determined such that -- under the low illumination, the digital zooming is performed in priority over optical zooming, wherein the optical zooming is used after a reasonable level of digital zooming is reached, -- under the medium illumination, the optical zooming is performed in combination with the digital zooming such that certain amount of optical zooming is performed, said certain amount being smaller than a maximum optical zooming, the rest of needed zoom amount is performed with the digital zooming, and -- under the bright illumination, the optical zooming is performed in priority over the digital zooming, wherein the optical zooming is performed until maximum optical zooming is reached after which the zooming is continued digitally.
  10. The device according to claim 9, configured to determine the ratio by comparing the determined amount of available illumination to predetermined illumination target values.
  11. The device according to claim 10, wherein the predetermined illumination target values define low, bright and medium lighting conditions.
  12. The device according to claim 11, that is, under low illumination, configured to perform digital zooming instead the optical zooming.
  13. The device according to claim 11, that is, under bright illumination, configured to perform the optical zooming until maximum optical zooming is reached after which the device is configured to continue the zooming digitally.
  14. The device according to claim 11, being, under medium illumination, configured to perform the optical zooming until a predetermined proportion of a maximum optical zooming is reached after which the device is configured to continue zooming digitally.
  15. The device according to claim 10, configured to perform optical zooming alternately with digital zooming.
  16. The device according to claim 9, further comprising data transfer connection capabilities.
  17. The device according to claim 9, where said certain amount of optical zooming is half the maximum of the optical zooming.
  18. The device according to claim 9, configured to determine said illumination and said ratio and to control said optical zooming and digital zooming in a remote controller.
  19. The device according to one of the claims 9 to 19, wherein digitally zooming is used first and, after this, said ratio between the optical zooming and the digital zooming is determined.
  20. Computer executable program for digital imaging wherein an image is formed through imaging optics onto a light sensitive image sensor in an imaging device, said imaging device being capable of both optical zooming and digital zooming, said program comprising code means adapted, when run on a computer, to carry out the steps of determining an amount of available illumination, and determining a ratio between the optical zooming and the digital zooming based on said amount of available illumination, and performing the optical zooming and the digital zooming according to said ratio characterized in that said program comprises code means adapted, when run on a computer, to - change the optical zooming only in quantized steps, - carry out categorizing the amount of available illumination as one of low, bright and medium, and determining said ratio such that -- under the low illumination, the digital zooming is performed in priority over optical zooming, wherein the optical zooming is used after a reasonable level of digital zooming is reached -- under the medium illumination, the optical zooming is performed in combination with the digital zooming such that certain amount of optical zooming is performed, said certain amount being smaller than a maximum optical zooming, and certain amount of digital zooming is performed, and -- under the bright illumination, the optical zooming is performed in priority over the digital zooming, wherein the optical zooming is performed until maximum optical zooming is reached after which the zooming is continued digitally.
  21. The computer executable program according claim 20, wherein said program comprises code means adapted, when run on a computer, to first use digitally zooming and, after this, to determine said ratio between the optical zooming and the digital zooming.
  22. The computer executable program according to claim 21 or 22, being arranged to be run in a controller.
  23. A medium carrying the computer executable program as defined by claim 21.
DE602006016108.5A 2005-05-31 2006-05-29 Optisches und digitales zoomen für eine abbildungseinrichtung Active DE602006016108C5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US144383 1998-08-31
US11/144,383 US7417673B2 (en) 2005-05-31 2005-05-31 Optical and digital zooming for an imaging device
EP06743561A EP1886487B1 (de) 2005-05-31 2006-05-29 Optisches und digitales zoomen für eine abbildungseinrichtung

Publications (1)

Publication Number Publication Date
DE602006016108C5 true DE602006016108C5 (de) 2023-05-25

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DE602006016108.5A Active DE602006016108C5 (de) 2005-05-31 2006-05-29 Optisches und digitales zoomen für eine abbildungseinrichtung
DE602006016108T Active DE602006016108D1 (de) 2005-05-31 2006-05-29 Optisches und digitales zoomen für eine abbildungseinrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE602006016108T Active DE602006016108D1 (de) 2005-05-31 2006-05-29 Optisches und digitales zoomen für eine abbildungseinrichtung

Country Status (7)

Country Link
US (1) US7417673B2 (de)
EP (1) EP1886487B1 (de)
JP (1) JP4965564B2 (de)
CN (1) CN101185322B (de)
AT (1) ATE477674T1 (de)
DE (2) DE602006016108C5 (de)
WO (1) WO2006128966A1 (de)

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JP4435228B2 (ja) * 2007-12-27 2010-03-17 キヤノン株式会社 撮像装置、およびその制御方法
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EP2243290A4 (de) 2008-01-29 2011-06-22 Enforcement Video Llc Omnidirektionale kamera zur verwendung bei der polizeiauto-ereignisaufzeichnung
US20090213218A1 (en) 2008-02-15 2009-08-27 Andrew Cilia System and method for multi-resolution storage of images
KR20100064533A (ko) * 2008-12-05 2010-06-15 삼성전자주식회사 카메라를 이용한 문자 크기 자동 조절 장치 및 방법
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CN104284090B (zh) * 2014-09-28 2017-10-27 天津市亚安科技有限公司 可变焦照明设备与可变焦镜头摄像机联动的方法
JP6389140B2 (ja) * 2015-04-03 2018-09-12 富士フイルム株式会社 内視鏡システム、プロセッサ装置、及び、内視鏡システムの作動方法
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CN109559353B (zh) * 2018-11-30 2021-02-02 Oppo广东移动通信有限公司 摄像模组标定方法、装置、电子设备及计算机可读存储介质
CN109712192B (zh) * 2018-11-30 2021-03-23 Oppo广东移动通信有限公司 摄像模组标定方法、装置、电子设备及计算机可读存储介质
CN111405185B (zh) * 2020-03-31 2021-06-15 浙江大华技术股份有限公司 一种摄像机变倍控制方法、装置、电子设备及存储介质
US20240114246A1 (en) * 2021-01-28 2024-04-04 Zhejiang Huachuang Vision Technology Co., Ltd. Photographing control method and apparatus, computer device and storage medium

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Also Published As

Publication number Publication date
ATE477674T1 (de) 2010-08-15
CN101185322A (zh) 2008-05-21
WO2006128966A1 (en) 2006-12-07
CN101185322B (zh) 2012-02-29
EP1886487A4 (de) 2009-04-01
JP2008546294A (ja) 2008-12-18
EP1886487A1 (de) 2008-02-13
JP4965564B2 (ja) 2012-07-04
US20060269265A1 (en) 2006-11-30
US7417673B2 (en) 2008-08-26
DE602006016108D1 (de) 2010-09-23
EP1886487B1 (de) 2010-08-11

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