WO2000062128A3 - Method and system for reducing noise in a digital image and apparatus thereof - Google Patents

Method and system for reducing noise in a digital image and apparatus thereof

Info

Publication number
WO2000062128A3
WO2000062128A3 PCT/US2000/009343 US0009343W WO2000062128A3 WO 2000062128 A3 WO2000062128 A3 WO 2000062128A3 US 0009343 W US0009343 W US 0009343W WO 2000062128 A3 WO2000062128 A3 WO 2000062128A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
pixel
data
signals
image
filter
Prior art date
Application number
PCT/US2000/009343
Other languages
French (fr)
Other versions
WO2000062128A2 (en )
Inventor
Jeff B Pelz
Original Assignee
Rochester Inst Tech
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/14Picture signal circuitry for video frequency region
    • H04N5/21Circuitry for suppressing or minimising disturbance, e.g. moiré, halo, even if the automatic gain control is involved
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/56Processing of colour picture signals
    • H04N1/58Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/64Circuits for processing colour signals
    • H04N9/646Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Abstract

A method for reducing noise in a digital image includes providing a digital image having a plurality of channels with each of the channels having a set of pixel data signals and applying a filter to each of the sets of pixel data signals, where the filter applied to at least one of the sets of pixel data signals is different from the filter applied to another one of the sets of pixel data signals. An imaging system (10) which reduce noise in a digital image includes an image sensor apparatus (12) and a filter system (14). The image sensor apparatus (12) captures a digital image consisting of a plurality of channels with each of the channels having a set of pixel data signals. The filter system (14) has at least two different filters with each of the filters filtering at least one of the sets of pixel data signals for one of the channels. The filter applied to at least one of the sets of pixel data signals is different from the filter applied to another one of the sets of pixel data signals.
PCT/US2000/009343 1999-04-13 2000-04-06 Method and system for reducing noise in a digital image and apparatus thereof WO2000062128A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12893199 true 1999-04-13 1999-04-13
US60/128,931 1999-04-13

Publications (2)

Publication Number Publication Date
WO2000062128A2 true WO2000062128A2 (en) 2000-10-19
WO2000062128A3 true true WO2000062128A3 (en) 2001-02-22

Family

ID=22437679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/009343 WO2000062128A3 (en) 1999-04-13 2000-04-06 Method and system for reducing noise in a digital image and apparatus thereof

Country Status (1)

Country Link
WO (1) WO2000062128A3 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739495A (en) * 1985-09-25 1988-04-19 Rca Corporation Solid-state imager defect corrector
US4783753A (en) * 1986-05-07 1988-11-08 Environmental Research Inst. Of Michigan System for reducing speckle noise
US5036405A (en) * 1986-11-19 1991-07-30 Canon Kabushiki Kaisha Image amending method
US5047863A (en) * 1990-05-24 1991-09-10 Polaroid Corporation Defect correction apparatus for solid state imaging devices including inoperative pixel detection
US5392070A (en) * 1991-11-26 1995-02-21 Kabushiki Kaisha Toshiba Apparatus for correcting faulty pixel signals by replacing the faulty pixel signals with normal pixel signals
US5745173A (en) * 1992-09-08 1998-04-28 Edwards; Michael Kenneth Machine vision camera and video preprocessing system
US5798847A (en) * 1995-05-24 1998-08-25 Oce-Nederland B.V. Method of and apparatus for correcting the output signals of an array of photodetector elements
US5828793A (en) * 1996-05-06 1998-10-27 Massachusetts Institute Of Technology Method and apparatus for producing digital images having extended dynamic ranges
US5850257A (en) * 1994-05-20 1998-12-15 Canon Kabushiki Kaisha Noise reduction device employing a sample and hold circuit, and an image pickup device using the noise reduction device
US5852468A (en) * 1995-02-27 1998-12-22 Sanyo Electric Co., Ltd. 1-chip color video camera for generating inter-pixel color signal component by interpolating primary color signals from neighboring pixels
US5881178A (en) * 1994-05-20 1999-03-09 Image Resource Technologies, Inc. Apparatus and method for accelerating the processing of data matrices
US6111992A (en) * 1997-07-28 2000-08-29 Likhterov; Boris Real-time two-dimensional filtering of video signals

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739495A (en) * 1985-09-25 1988-04-19 Rca Corporation Solid-state imager defect corrector
US4783753A (en) * 1986-05-07 1988-11-08 Environmental Research Inst. Of Michigan System for reducing speckle noise
US5036405A (en) * 1986-11-19 1991-07-30 Canon Kabushiki Kaisha Image amending method
US5047863A (en) * 1990-05-24 1991-09-10 Polaroid Corporation Defect correction apparatus for solid state imaging devices including inoperative pixel detection
US5392070A (en) * 1991-11-26 1995-02-21 Kabushiki Kaisha Toshiba Apparatus for correcting faulty pixel signals by replacing the faulty pixel signals with normal pixel signals
US5745173A (en) * 1992-09-08 1998-04-28 Edwards; Michael Kenneth Machine vision camera and video preprocessing system
US5850257A (en) * 1994-05-20 1998-12-15 Canon Kabushiki Kaisha Noise reduction device employing a sample and hold circuit, and an image pickup device using the noise reduction device
US5881178A (en) * 1994-05-20 1999-03-09 Image Resource Technologies, Inc. Apparatus and method for accelerating the processing of data matrices
US5852468A (en) * 1995-02-27 1998-12-22 Sanyo Electric Co., Ltd. 1-chip color video camera for generating inter-pixel color signal component by interpolating primary color signals from neighboring pixels
US5798847A (en) * 1995-05-24 1998-08-25 Oce-Nederland B.V. Method of and apparatus for correcting the output signals of an array of photodetector elements
US5828793A (en) * 1996-05-06 1998-10-27 Massachusetts Institute Of Technology Method and apparatus for producing digital images having extended dynamic ranges
US6111992A (en) * 1997-07-28 2000-08-29 Likhterov; Boris Real-time two-dimensional filtering of video signals

Also Published As

Publication number Publication date Type
WO2000062128A2 (en) 2000-10-19 application

Similar Documents

Publication Publication Date Title
US6697101B1 (en) Electronic endoscope
EP1389876A1 (en) Colour image sensor with hexagonal shaped pixels
EP1315367A2 (en) Method and system for improving color images
US7295238B2 (en) Image signal processing device of image sensor
US6774937B1 (en) Image processing system and camera system
US7092021B2 (en) Frame shuttering scheme for increased frame rate
JPH03174890A (en) Solid-state image pickup system
US4605969A (en) Video pattern noise processor
JPH11298911A (en) Image-pickup circuit and image-pickup unit thereof
JPH0423577A (en) Solid-state image pickup device
US5491522A (en) Luminance and color signal isolation device
Knoll Filter design for the interpolation of highly subsampled pictures
JPH04314181A (en) Processing method for endoscope image
JPH0670275A (en) Electronic still camera device
US6762799B2 (en) Image data synchronizing apparatus and method
JPS5842387A (en) Digital signal recording system
JPH07193826A (en) Color filter for solid-state image pickup element and signal processor for solid-state image pickup element
JPH04257121A (en) Method for linearizing phase response of d/a converter and d/a converter
JPH01140887A (en) Recording/reproducing device for television signal
DE4319232A1 (en) Single picture camera with image and speech encoder and recorder - incorporates buffer RAM corresp. to field time in speech data encoder operating on digitised microphone input
JPH07334683A (en) Moving object detector
JPH0314372A (en) Time difference subtraction method for radiation image and radiation image processor
JPH11146256A (en) Image pickup device
JPS62159576A (en) Solid-state image pickup device
DE3632488C2 (en)

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: JP