JPS5271235A - Method and device for deciding image sharpness - Google Patents

Method and device for deciding image sharpness

Info

Publication number
JPS5271235A
JPS5271235A JP51140291A JP14029176A JPS5271235A JP S5271235 A JPS5271235 A JP S5271235A JP 51140291 A JP51140291 A JP 51140291A JP 14029176 A JP14029176 A JP 14029176A JP S5271235 A JPS5271235 A JP S5271235A
Authority
JP
Japan
Prior art keywords
image sharpness
deciding image
deciding
sharpness
image
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP51140291A
Other languages
English (en)
Other versions
JPS5615483B2 (ja
Inventor
Pieeru Guraafu Jiyan
Serio Chino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TSUURU FUERUDERUNGU DERU FUORU
TSUURU FUERUDERUNGU DERU FUORUSHIYUNGU AN DERU AIDOGENETSUSHITSUSHIEN TEHINITSUSHIEN HOTSUHOSHIYUURE G
Original Assignee
TSUURU FUERUDERUNGU DERU FUORU
TSUURU FUERUDERUNGU DERU FUORUSHIYUNGU AN DERU AIDOGENETSUSHITSUSHIEN TEHINITSUSHIEN HOTSUHOSHIYUURE G
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 TSUURU FUERUDERUNGU DERU FUORU, TSUURU FUERUDERUNGU DERU FUORUSHIYUNGU AN DERU AIDOGENETSUSHITSUSHIEN TEHINITSUSHIEN HOTSUHOSHIYUURE G filed Critical TSUURU FUERUDERUNGU DERU FUORU
Publication of JPS5271235A publication Critical patent/JPS5271235A/ja
Publication of JPS5615483B2 publication Critical patent/JPS5615483B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28Systems for automatic generation of focusing signals
    • G02B7/36Systems 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)
  • Facsimile Image Signal Circuits (AREA)
  • Image Analysis (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
JP51140291A 1975-12-09 1976-11-24 Method and device for deciding image sharpness Granted JPS5271235A (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS5271235A true JPS5271235A (en) 1977-06-14
JPS5615483B2 JPS5615483B2 (ja) 1981-04-10

Family

ID=4413450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51140291A Granted JPS5271235A (en) 1975-12-09 1976-11-24 Method and device for deciding image sharpness

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Families Citing this family (14)

* 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
ATE41833T1 (de) * 1981-01-05 1989-04-15 Image Processing Tech Verfahren und geraet zur umwandlung eines musters in eine binaere form.
JPS58131391A (ja) * 1982-01-29 1983-08-05 Kogata Gas Reibou Gijutsu Kenkyu Kumiai 圧縮機
EP0312499B1 (de) * 1987-10-15 1992-11-04 Gretag Imaging Ag Fotografisches Farbkopiergerät und Belichtungssteuerungsverfahren
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
TW471230B (en) * 1998-04-27 2002-01-01 Pfu Ltd Picture noise 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 (ja) * 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH0216486B2 (ja) * 1981-07-06 1990-04-17 Fuji Photo Optical Co Ltd
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

Also Published As

Publication number Publication date
CH604452A5 (ja) 1978-09-15
US4123778A (en) 1978-10-31
DE2652287C3 (de) 1979-02-01
DE2652287A1 (de) 1977-06-23
DE2652287B2 (de) 1978-06-08
JPS5615483B2 (ja) 1981-04-10
GB1570885A (en) 1980-07-09
IT1123089B (it) 1986-04-30

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