JPS57129421A - Detecting method for moving body - Google Patents

Detecting method for moving body

Info

Publication number
JPS57129421A
JPS57129421A JP56015255A JP1525581A JPS57129421A JP S57129421 A JPS57129421 A JP S57129421A JP 56015255 A JP56015255 A JP 56015255A JP 1525581 A JP1525581 A JP 1525581A JP S57129421 A JPS57129421 A JP S57129421A
Authority
JP
Japan
Prior art keywords
time
outputs
circuits
photodetector
difference
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.)
Pending
Application number
JP56015255A
Other languages
Japanese (ja)
Inventor
Kenji Nakauchi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP56015255A priority Critical patent/JPS57129421A/en
Publication of JPS57129421A publication Critical patent/JPS57129421A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/093—Digital circuits for control of exposure time
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/005—Blur detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To recognize the speed of blur, by measuring a time when the sum of the absolute values of output difference between two times of a photodetector is greater than the sum of the absolute values of difference between the 1st time output of each element and the 2nd time output of the photodetector at a specified shift position, after normalizing and comparing them. CONSTITUTION:A part of an objective image undergoes split photometry by a photodetector group 1 providing photodetectors 2-6 arranged in a row at a specified interval. Outputs A'-E' of the detectors at measurement start time t0 are stored in a storage circuit 7, and the difference between the outpus A-E after t1 seconds and the A'-E' is calculated at addition circuits 14-16. After absolute value is taken at absolute value circuits 11-13, the values are added at addition circuits 14-16, averaged at average circuits 17-19 and normalized. Further, a time t2 until either one of outputs II, III is smaller than an average outputI, is equal to a time when the image requires to move a half the interval, then the moving speed of image can be recognized and the direction of movement can be known according to the outputs II, III.
JP56015255A 1981-02-04 1981-02-04 Detecting method for moving body Pending JPS57129421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015255A JPS57129421A (en) 1981-02-04 1981-02-04 Detecting method for moving body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015255A JPS57129421A (en) 1981-02-04 1981-02-04 Detecting method for moving body

Publications (1)

Publication Number Publication Date
JPS57129421A true JPS57129421A (en) 1982-08-11

Family

ID=11883742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015255A Pending JPS57129421A (en) 1981-02-04 1981-02-04 Detecting method for moving body

Country Status (1)

Country Link
JP (1) JPS57129421A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177329A (en) * 1984-02-24 1985-09-11 Canon Inc Hand-shake detector of camera
JPS61166529A (en) * 1985-01-18 1986-07-28 Hitachi Ltd Moving image input method
US4772117A (en) * 1986-05-27 1988-09-20 Minolta Camera Kabushiki Kaisha Focus detecting device having blur detecting function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177329A (en) * 1984-02-24 1985-09-11 Canon Inc Hand-shake detector of camera
JPS61166529A (en) * 1985-01-18 1986-07-28 Hitachi Ltd Moving image input method
US4772117A (en) * 1986-05-27 1988-09-20 Minolta Camera Kabushiki Kaisha Focus detecting device having blur detecting function

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