WO2008105222A1 - ノイズ低減装置、ノイズ低減方法、及びノイズ低減プログラム - Google Patents

ノイズ低減装置、ノイズ低減方法、及びノイズ低減プログラム Download PDF

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Publication number
WO2008105222A1
WO2008105222A1 PCT/JP2008/051739 JP2008051739W WO2008105222A1 WO 2008105222 A1 WO2008105222 A1 WO 2008105222A1 JP 2008051739 W JP2008051739 W JP 2008051739W WO 2008105222 A1 WO2008105222 A1 WO 2008105222A1
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WO
WIPO (PCT)
Prior art keywords
noise reduction
noise
noise component
flat area
reduction device
Prior art date
Application number
PCT/JP2008/051739
Other languages
English (en)
French (fr)
Inventor
Akira Inoue
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Priority to JP2009501160A priority Critical patent/JP4858609B2/ja
Priority to US12/528,773 priority patent/US8532428B2/en
Publication of WO2008105222A1 publication Critical patent/WO2008105222A1/ja

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Classifications

    • 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
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • 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
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20008—Globally adaptive

Landscapes

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

Abstract

　ノイズ低減装置は、平坦領域検出部と、ノイズ成分分析部と、ノイズ成分抑圧部とを含む。平坦領域検出部は、入力画像中から平坦な領域を検出する。ノイズ成分分析部は、前記平坦領域からノイズ成分を分析する。ノイズ成分抑圧部は、ノイズ分析結果を元に入力画像からノイズ成分を抑圧する。このノイズ低減装置により、主観的な画質を損なうことなく、画像のノイズを低減する。
PCT/JP2008/051739 2007-02-27 2008-02-04 ノイズ低減装置、ノイズ低減方法、及びノイズ低減プログラム WO2008105222A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009501160A JP4858609B2 (ja) 2007-02-27 2008-02-04 ノイズ低減装置、ノイズ低減方法、及びノイズ低減プログラム
US12/528,773 US8532428B2 (en) 2007-02-27 2008-02-04 Noise reducing apparatus, noise reducing method, and noise reducing program for improving image quality

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007047869 2007-02-27
JP2007-047869 2007-02-27

Publications (1)

Publication Number Publication Date
WO2008105222A1 true WO2008105222A1 (ja) 2008-09-04

Family

ID=39721060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051739 WO2008105222A1 (ja) 2007-02-27 2008-02-04 ノイズ低減装置、ノイズ低減方法、及びノイズ低減プログラム

Country Status (3)

Country Link
US (1) US8532428B2 (ja)
JP (1) JP4858609B2 (ja)
WO (1) WO2008105222A1 (ja)

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KR20110066011A (ko) * 2009-12-10 2011-06-16 한국전자통신연구원 이미지 특성 추출을 이용한 유사 쉐이더 검색장치 및 방법
US8634766B2 (en) * 2010-02-16 2014-01-21 Andrew Llc Gain measurement and monitoring for wireless communication systems
US8879000B2 (en) * 2010-12-22 2014-11-04 Broadcom Corporation Method and system for detecting analog noise in the presence of mosquito noise
US8675971B2 (en) * 2011-03-25 2014-03-18 Aptina Imaging Corporation Method and apparatus for classifying image pixels
ITVI20110336A1 (it) * 2011-12-23 2013-06-24 St Microelectronics Srl Correzione di difetti in un array di filtri a colori
JP5939962B2 (ja) * 2012-11-19 2016-06-29 株式会社Pfu 画像処理装置、画像処理方法及びコンピュータプログラム
JP6326768B2 (ja) * 2013-11-12 2018-05-23 株式会社リコー 画像検査装置、画像検査システム及び画像検査方法
US11032446B2 (en) * 2016-11-17 2021-06-08 Sony Interactive Entertainment Inc. Image processing device, image processing method, and program for correcting color in an image
US10475164B2 (en) * 2017-09-12 2019-11-12 Qualcomm Incorporated Artifact detection in a contrast enhanced output image
TWI827725B (zh) * 2018-12-07 2024-01-01 日商索尼半導體解決方案公司 圖像處理裝置及圖像處理方法
CN110136085B (zh) * 2019-05-17 2022-03-29 凌云光技术股份有限公司 一种图像的降噪方法及装置

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WO2014208681A1 (ja) * 2013-06-26 2014-12-31 オリンパス株式会社 画像処理装置
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Also Published As

Publication number Publication date
JPWO2008105222A1 (ja) 2010-06-03
US20100119163A1 (en) 2010-05-13
US8532428B2 (en) 2013-09-10
JP4858609B2 (ja) 2012-01-18

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