GB2010631A - Multi planar camera - Google Patents

Multi planar camera

Info

Publication number
GB2010631A
GB2010631A GB7834670A GB7834670A GB2010631A GB 2010631 A GB2010631 A GB 2010631A GB 7834670 A GB7834670 A GB 7834670A GB 7834670 A GB7834670 A GB 7834670A GB 2010631 A GB2010631 A GB 2010631A
Authority
GB
United Kingdom
Prior art keywords
focus
sub
images
image
analysed
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
GB7834670A
Other versions
GB2010631B (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8019139A priority Critical patent/GB2055006A/en
Priority to GB7834670A priority patent/GB2010631B/en
Publication of GB2010631A publication Critical patent/GB2010631A/en
Application granted granted Critical
Publication of GB2010631B publication Critical patent/GB2010631B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Abstract

Television/photographic camera arrangement includes an optical arrangement which causes the image light from the camera's main lens system to be focused on two or more planes at different distances from the main lens system, e.g. for three such planes the resulting sub-images are arranged to include in-focus objects located in the far, middle and near distance ranges respectively from the main lens system. These sub-images are then analysed and the in-focus portions thereof selected and used to form a composite image which is substantially in-focus at all points. The sub-images are analysed by television cameras e.g. three colour television cameras, and the resulting video signals (specifically the luminance signals) are analysed e.g. by digital filtering, to determine those regions of each sub-image which are more in-focus than the corresponding regions of the other sub-images. From this in-focus determination a switching control signal is formed for selecting the in-focus video signals for transmission or recording. The in- focus selection may be effected by first recording the sub-image video signals on magnetic tapes and erasing the out-of-focus portions. Cine or still photographic cameras may simultaneously record the sub- images and during the processing of the films those portions not in-focus are suppressed from each frame according to the compared television signals, the films then being combined to form a master film. Also described in an arrangement in which a single image is photographed or televised, and those regions which are determined to be out of focus e.g. by digital filtering, are mathematically enhanced under operator control to improve their sharpness so that they appear to be in focus.
GB7834670A 1977-05-30 1978-08-25 Multi planar camera Expired GB2010631B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8019139A GB2055006A (en) 1978-08-25 1978-08-25 Multi Planar Camera
GB7834670A GB2010631B (en) 1977-05-30 1978-08-25 Multi planar camera

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2270577 1977-05-30
GB7834670A GB2010631B (en) 1977-05-30 1978-08-25 Multi planar camera

Publications (2)

Publication Number Publication Date
GB2010631A true GB2010631A (en) 1979-06-27
GB2010631B GB2010631B (en) 1982-03-03

Family

ID=26256073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834670A Expired GB2010631B (en) 1977-05-30 1978-08-25 Multi planar camera

Country Status (1)

Country Link
GB (1) GB2010631B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404594A (en) * 1981-11-02 1983-09-13 Itek Corporation Imaging system with enlarged depth of field
US4515443A (en) * 1982-12-29 1985-05-07 The United States Of America As Represented By The Secretary Of The Army Passive optical system for background suppression in starring imagers
US4743958A (en) * 1986-10-06 1988-05-10 The Grass Valley Group, Inc. Multiple television standards input selector and convertor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404594A (en) * 1981-11-02 1983-09-13 Itek Corporation Imaging system with enlarged depth of field
US4515443A (en) * 1982-12-29 1985-05-07 The United States Of America As Represented By The Secretary Of The Army Passive optical system for background suppression in starring imagers
US4743958A (en) * 1986-10-06 1988-05-10 The Grass Valley Group, Inc. Multiple television standards input selector and convertor

Also Published As

Publication number Publication date
GB2010631B (en) 1982-03-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee