TWI346452B - Low pass filtering method - Google Patents

Low pass filtering method

Info

Publication number
TWI346452B
TWI346452B TW097109267A TW97109267A TWI346452B TW I346452 B TWI346452 B TW I346452B TW 097109267 A TW097109267 A TW 097109267A TW 97109267 A TW97109267 A TW 97109267A TW I346452 B TWI346452 B TW I346452B
Authority
TW
Taiwan
Prior art keywords
low pass
pass filtering
filtering method
low
pass
Prior art date
Application number
TW097109267A
Other languages
Chinese (zh)
Other versions
TW200941934A (en
Inventor
Jen Chung Weng
Jar Lin Chen
Original Assignee
Holtek Semiconductor Inc
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 Holtek Semiconductor Inc filed Critical Holtek Semiconductor Inc
Priority to TW097109267A priority Critical patent/TWI346452B/en
Priority to JP2008095951A priority patent/JP4529033B2/en
Priority to KR1020080040199A priority patent/KR100977141B1/en
Publication of TW200941934A publication Critical patent/TW200941934A/en
Application granted granted Critical
Publication of TWI346452B publication Critical patent/TWI346452B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
TW097109267A 2008-03-17 2008-03-17 Low pass filtering method TWI346452B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW097109267A TWI346452B (en) 2008-03-17 2008-03-17 Low pass filtering method
JP2008095951A JP4529033B2 (en) 2008-03-17 2008-04-02 Low-pass filtration method
KR1020080040199A KR100977141B1 (en) 2008-03-17 2008-04-30 Low Filtration Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW097109267A TWI346452B (en) 2008-03-17 2008-03-17 Low pass filtering method

Publications (2)

Publication Number Publication Date
TW200941934A TW200941934A (en) 2009-10-01
TWI346452B true TWI346452B (en) 2011-08-01

Family

ID=41241656

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097109267A TWI346452B (en) 2008-03-17 2008-03-17 Low pass filtering method

Country Status (3)

Country Link
JP (1) JP4529033B2 (en)
KR (1) KR100977141B1 (en)
TW (1) TWI346452B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11788972B2 (en) 2021-04-29 2023-10-17 Industrial Technology Research Institute Method of automatically setting optical parameters and automated optical inspection system using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105973A (en) * 1984-10-30 1986-05-24 Fuji Xerox Co Ltd Picture signal processing method
JP4178919B2 (en) * 2002-11-21 2008-11-12 セイコーエプソン株式会社 Noise removal method, imaging apparatus, and noise removal program
KR100887288B1 (en) * 2004-04-23 2009-03-06 엠텍비젼 주식회사 Method and apparatus for removing noise in an image in consideration of edge directionality
JP3926363B2 (en) * 2004-11-04 2007-06-06 三菱電機株式会社 Pixel signal processing apparatus and pixel signal processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11788972B2 (en) 2021-04-29 2023-10-17 Industrial Technology Research Institute Method of automatically setting optical parameters and automated optical inspection system using the same

Also Published As

Publication number Publication date
KR20090099437A (en) 2009-09-22
TW200941934A (en) 2009-10-01
JP2009225410A (en) 2009-10-01
KR100977141B1 (en) 2010-08-20
JP4529033B2 (en) 2010-08-25

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees