CH604452A5 - - Google Patents

Info

Publication number
CH604452A5
CH604452A5 CH1597175A CH1597175A CH604452A5 CH 604452 A5 CH604452 A5 CH 604452A5 CH 1597175 A CH1597175 A CH 1597175A CH 1597175 A CH1597175 A CH 1597175A CH 604452 A5 CH604452 A5 CH 604452A5
Authority
CH
Switzerland
Application number
CH1597175A
Inventor
Dipl-El Ing Jean-Pierre Graf
Dipl-El Ing Dr Tino Celio
Original Assignee
Foerderung Forschung Gmbh
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 Foerderung Forschung Gmbh filed Critical Foerderung Forschung Gmbh
Priority to CH1597175A priority Critical patent/CH604452A5/xx
Priority to GB46925/76A priority patent/GB1570885A/en
Priority to DE2652287A priority patent/DE2652287C3/de
Priority to JP51140291A priority patent/JPS5271235A/ja
Priority to IT30145/76A priority patent/IT1123089B/it
Priority to US05/748,300 priority patent/US4123778A/en
Publication of CH604452A5 publication Critical patent/CH604452A5/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Image Processing (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Analysis (AREA)
CH1597175A 1975-12-09 1975-12-09 CH604452A5 (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH1597175A CH604452A5 (nl) 1975-12-09 1975-12-09
GB46925/76A GB1570885A (en) 1975-12-09 1976-11-11 Determination of picture sharpness
DE2652287A DE2652287C3 (de) 1975-12-09 1976-11-17 Verfahren und Vorrichtung zur Bestimmung der Schärfe eines Bildes
JP51140291A JPS5271235A (en) 1975-12-09 1976-11-24 Method and device for deciding image sharpness
IT30145/76A IT1123089B (it) 1975-12-09 1976-12-06 Procedimento per determinare la nitidezza di una immagine e dispositivo per l'attuazione del procedimento
US05/748,300 US4123778A (en) 1975-12-09 1976-12-07 Method of and apparatus for determining the sharpness of a picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1597175A CH604452A5 (nl) 1975-12-09 1975-12-09

Publications (1)

Publication Number Publication Date
CH604452A5 true CH604452A5 (nl) 1978-09-15

Family

ID=4413450

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1597175A CH604452A5 (nl) 1975-12-09 1975-12-09

Country Status (6)

Country Link
US (1) US4123778A (nl)
JP (1) JPS5271235A (nl)
CH (1) CH604452A5 (nl)
DE (1) DE2652287C3 (nl)
GB (1) GB1570885A (nl)
IT (1) IT1123089B (nl)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747527A1 (de) * 1977-10-22 1979-04-26 Agfa Gevaert Ag Verfahren und vorrichtung zum bestimmen der kopierlichtmengen beim kopieren von farbvorlagen
JPS6053943B2 (ja) * 1978-11-30 1985-11-28 キヤノン株式会社 カメラの合焦検出装置
JPS5589819A (en) * 1978-12-28 1980-07-07 Asahi Optical Co Ltd Focus detector of camera
DE2910875C2 (de) * 1979-03-20 1985-11-14 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Verfahren zur automatischen Scharfeinstellung
US4547812A (en) * 1980-06-20 1985-10-15 Information International, Inc. Method and apparatus for forming high resolution halftone images
EP0055965B1 (en) * 1981-01-05 1989-03-29 Image Processing Technologies Inc. Process and device for the binarization of a pattern
JPS587113A (ja) * 1981-07-06 1983-01-14 Fuji Photo Optical Co Ltd 多点測光によるオ−トフオ−カス装置
JPS58131391A (ja) * 1982-01-29 1983-08-05 Kogata Gas Reibou Gijutsu Kenkyu Kumiai 圧縮機
JPS6079876U (ja) * 1983-11-02 1985-06-03 三洋電機株式会社 オ−トフオ−カス制御回路
DE3850974D1 (de) * 1987-10-15 1994-09-08 Gretag Imaging Ag Belichtungssteuerungsverfahren für ein fotografisches Farbkopiergerät.
US4876608A (en) * 1988-11-07 1989-10-24 Xerox Corporation Focus and signal to noise measurement routines in input scanners
DE4105002C2 (de) * 1991-02-19 1995-03-23 Hell Ag Linotype Verfahren und Einrichtung zur Scharfeinstellung eines optischen Abbildungs-Systems
JPH0887600A (ja) * 1994-09-19 1996-04-02 Topcon Corp 特徴抽出装置
US5793900A (en) * 1995-12-29 1998-08-11 Stanford University Generating categorical depth maps using passive defocus sensing
TW472481B (en) * 1998-04-27 2002-01-11 Pfu Ltd Picture resolution measuring method for picture reader, and recording medium therefor
CN100476388C (zh) * 2005-02-04 2009-04-08 沈阳敏像科技有限公司 微型摄像模组光学测试方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231134B2 (nl) * 1972-01-24 1977-08-12
DE2244340C2 (de) * 1972-09-09 1986-02-06 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zur Vorprüfung von Kopiervorlagen

Also Published As

Publication number Publication date
DE2652287C3 (de) 1979-02-01
IT1123089B (it) 1986-04-30
GB1570885A (en) 1980-07-09
DE2652287B2 (de) 1978-06-08
US4123778A (en) 1978-10-31
JPS5615483B2 (nl) 1981-04-10
JPS5271235A (en) 1977-06-14
DE2652287A1 (de) 1977-06-23

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Legal Events

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PL Patent ceased