IN2012DE01674A - - Google Patents

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Publication number
IN2012DE01674A
IN2012DE01674A IN1674DE2012A IN2012DE01674A IN 2012DE01674 A IN2012DE01674 A IN 2012DE01674A IN 1674DE2012 A IN1674DE2012 A IN 1674DE2012A IN 2012DE01674 A IN2012DE01674 A IN 2012DE01674A
Authority
IN
India
Prior art keywords
iir
calculation section
variance
mean
value calculation
Prior art date
Application number
Inventor
Nomura Yoshikuni
Tachi Masayuki
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of IN2012DE01674A publication Critical patent/IN2012DE01674A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20024—Filtering details
    • G06T2207/20028—Bilateral filtering
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20192—Edge enhancement; Edge preservation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

Provided is an image processing apparatus including an infinite impulse response (IIR) mean value calculation section for calculating a mean value of signal values of reference pixels around a correction target pixel according to an IIR filter application process, an IIR variance value calculation section for calculating a variance value of the signal values of the reference pixels around the correction target pixel according to the IIR filter application process, an edge-preserving smoothing processing section for receiving the mean and variance values of the reference pixels and executing an edge-preserving smoothing process to which the mean and variance values are applied, and an IIR filter coefficient calculation section for updating an IIR filter coefficient to be applied to the IIR mean value calculation section and the IIR variance value calculation section according to a signal value of a pixel constituting an image.
IN1674DE2012 2011-06-09 2012-06-01 IN2012DE01674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011128824A JP2012256202A (en) 2011-06-09 2011-06-09 Image processing apparatus and method, and program

Publications (1)

Publication Number Publication Date
IN2012DE01674A true IN2012DE01674A (en) 2015-09-25

Family

ID=47293254

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1674DE2012 IN2012DE01674A (en) 2011-06-09 2012-06-01

Country Status (4)

Country Link
US (1) US8744206B2 (en)
JP (1) JP2012256202A (en)
CN (1) CN102821230A (en)
IN (1) IN2012DE01674A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013218487A (en) * 2012-04-06 2013-10-24 Sony Corp Image processing apparatus, imaging apparatus, image processing method, and program
KR101929560B1 (en) 2013-01-29 2019-03-14 삼성전자주식회사 Method and apparatus for detecting edge in image
JP6164926B2 (en) * 2013-05-16 2017-07-19 オリンパス株式会社 Noise reduction processing device
JP2014228926A (en) * 2013-05-20 2014-12-08 株式会社朋栄 Cyclic digital filter and image processing method
CN104217416B (en) * 2013-05-31 2017-09-15 富士通株式会社 Gray level image processing method and its device
US9154698B2 (en) * 2013-06-19 2015-10-06 Qualcomm Technologies, Inc. System and method for single-frame based super resolution interpolation for digital cameras
US9910675B2 (en) 2013-08-08 2018-03-06 Linear Algebra Technologies Limited Apparatus, systems, and methods for low power computational imaging
US9727113B2 (en) 2013-08-08 2017-08-08 Linear Algebra Technologies Limited Low power computational imaging
US10001993B2 (en) 2013-08-08 2018-06-19 Linear Algebra Technologies Limited Variable-length instruction buffer management
US11768689B2 (en) 2013-08-08 2023-09-26 Movidius Limited Apparatus, systems, and methods for low power computational imaging
US9196017B2 (en) * 2013-11-15 2015-11-24 Linear Algebra Technologies Limited Apparatus, systems, and methods for removing noise from an image
US10460704B2 (en) 2016-04-01 2019-10-29 Movidius Limited Systems and methods for head-mounted display adapted to human visual mechanism
JP6904842B2 (en) * 2017-08-03 2021-07-21 キヤノン株式会社 Image processing device, image processing method
US10458789B2 (en) 2017-09-15 2019-10-29 Mitsubishi Electric Corporation Signal processing device, sensor device, and signal processing method
CN107680524A (en) * 2017-09-30 2018-02-09 深圳超多维科技有限公司 A kind of 2D display methods, device and equipment for bore hole 3D display screen
KR101961816B1 (en) * 2017-11-30 2019-03-25 전남대학교산학협력단 Directional average filtering method that can denoise and edge preservation of image
US10949947B2 (en) 2017-12-29 2021-03-16 Intel Corporation Foveated image rendering for head-mounted display devices
JP7157360B2 (en) * 2019-05-31 2022-10-20 日本電信電話株式会社 Image processing device, image processing method and program
CN113421193B (en) * 2021-05-05 2022-09-30 桂林理工大学 Mean-variance cost function minimum model multi-image mosaic radiation equalization method
CN116071271B (en) * 2023-03-07 2023-06-02 深圳市熠华智能科技有限公司 Analysis method for image capturing of tablet personal computer

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5641596A (en) * 1995-12-05 1997-06-24 Eastman Kodak Company Adjusting film grain properties in digital images
US5771318A (en) * 1996-06-27 1998-06-23 Siemens Corporate Research, Inc. Adaptive edge-preserving smoothing filter
US6166853A (en) * 1997-01-09 2000-12-26 The University Of Connecticut Method and apparatus for three-dimensional deconvolution of optical microscope images
JP2001036769A (en) 1999-07-23 2001-02-09 Hitachi Denshi Ltd Noise reduction device
KR100327385B1 (en) * 2000-07-18 2002-03-13 Lg Electronics Inc Spatio-temporal three-dimensional noise filter
US7206101B2 (en) * 2001-11-21 2007-04-17 Ge Medical Systems Global Technology Company, Llc Computationally efficient noise reduction filter
AT413620B (en) * 2002-01-29 2006-04-15 Siemens Ag Oesterreich PROCESS FOR COEFFICIENT ADAPTATION IN A DIGITAL FILTER ACCORDING TO THE EQUATION-ERROR PRINCIPLE
JP2005184786A (en) 2003-11-28 2005-07-07 Victor Co Of Japan Ltd Noise suppression circuit
JP4180007B2 (en) 2004-03-30 2008-11-12 三洋電機株式会社 Image signal processing circuit
KR100485594B1 (en) * 2004-08-26 2005-04-27 (주) 넥스트칩 A method for removing noise in image and a system thereof
JP5035029B2 (en) * 2008-03-03 2012-09-26 ソニー株式会社 Signal processing apparatus and method, and program
US20100014596A1 (en) * 2008-07-19 2010-01-21 Headplay (Barbados) Inc. Systems and methods for improving the quality of compressed video signals by smoothing block artifacts
JP5168056B2 (en) 2008-09-29 2013-03-21 富士通セミコンダクター株式会社 Noise removing apparatus and noise removing method
US8600188B2 (en) * 2010-09-15 2013-12-03 Sharp Laboratories Of America, Inc. Methods and systems for noise reduction and image enhancement

Also Published As

Publication number Publication date
US20120314946A1 (en) 2012-12-13
JP2012256202A (en) 2012-12-27
US8744206B2 (en) 2014-06-03
CN102821230A (en) 2012-12-12

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