WO2009011308A1 - 画像処理装置及び撮像装置、画像処理方法及び撮像方法、画像処理プログラム - Google Patents

画像処理装置及び撮像装置、画像処理方法及び撮像方法、画像処理プログラム Download PDF

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Publication number
WO2009011308A1
WO2009011308A1 PCT/JP2008/062584 JP2008062584W WO2009011308A1 WO 2009011308 A1 WO2009011308 A1 WO 2009011308A1 JP 2008062584 W JP2008062584 W JP 2008062584W WO 2009011308 A1 WO2009011308 A1 WO 2009011308A1
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WO
WIPO (PCT)
Prior art keywords
image processing
color
pixel signal
imaging
difference
Prior art date
Application number
PCT/JP2008/062584
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English (en)
French (fr)
Inventor
Yasuhiro Sawada
Original Assignee
Acutelogic 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 Acutelogic Corporation filed Critical Acutelogic Corporation
Priority to US12/669,011 priority Critical patent/US8106974B2/en
Priority to EP08778099.5A priority patent/EP2178305B1/en
Publication of WO2009011308A1 publication Critical patent/WO2009011308A1/ja
Priority to US13/357,284 priority patent/US8542299B2/en
Priority to US14/031,651 priority patent/US9232203B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4015—Image demosaicing, e.g. colour filter arrays [CFA] or Bayer patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/843—Demosaicing, e.g. interpolating colour pixel values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
    • H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
    • H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
    • H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2209/00—Details of colour television systems
    • H04N2209/04—Picture signal generators
    • H04N2209/041—Picture signal generators using solid-state devices
    • H04N2209/042—Picture signal generators using solid-state devices having a single pick-up sensor
    • H04N2209/045—Picture signal generators using solid-state devices having a single pick-up sensor using mosaic colour filter
    • H04N2209/046—Colour interpolation to calculate the missing colour values

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Color Television Image Signal Generators (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

　解像度を損なうことなく偽色を抑制できて、高品位なカラー画像を得ることができる画像処理装置及び撮像装置、画像処理方法及び撮像方法、画像処理プログラムを提供することを目的とする。 　同時化部２５において、カラー画像における画素位置に対応付けて、Ｒ、Ｇｒ、Ｇｂ、Ｂを一単位とし、Ｒ、Ｇｒ、Ｇｂ、Ｂの画素信号の和から輝度（Ｙ´）を生成し、Ｇｒの画素信号とＧｂの画素信号との和からＲの画素信号とＢの画素信号を減算して第一色差Ｃ１を生成すると共に、Ｒの画素信号とＢの画素信号との差を算出して第二色差Ｃ２を生成し、次いで、偽色抑制部３１において、第一色差Ｃ１及び第二色差Ｃ２の少なくとも何れか一方の偽色抑制を行い、次いで、色空間変換部３７において、輝度Ｙ´、第一色差Ｃ１、第二色差Ｃ２等を所定の色空間に変換してＹＵＶの色情報を生成する。
PCT/JP2008/062584 2007-07-13 2008-07-11 画像処理装置及び撮像装置、画像処理方法及び撮像方法、画像処理プログラム WO2009011308A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/669,011 US8106974B2 (en) 2007-07-13 2008-07-11 Image processing device, imaging device, image processing method, imaging method, and image processing program
EP08778099.5A EP2178305B1 (en) 2007-07-13 2008-07-11 Image processing device, imaging device, image processing method, imaging method, and image processing program
US13/357,284 US8542299B2 (en) 2007-07-13 2012-01-24 Image processing device, imaging device, image processing method, imaging method, and image processing program for pseudo-color suppression in an image
US14/031,651 US9232203B2 (en) 2007-07-13 2013-09-19 Image processing device, imaging device, image processing method, imaging method, and image processing program for pseudo-color supression in an image

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-184969 2007-07-13
JP2007184969A JP4914303B2 (ja) 2007-07-13 2007-07-13 画像処理装置及び撮像装置、画像処理方法及び撮像方法、画像処理プログラム

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/669,011 A-371-Of-International US8106974B2 (en) 2007-07-13 2008-07-11 Image processing device, imaging device, image processing method, imaging method, and image processing program
US13/357,284 Continuation US8542299B2 (en) 2007-07-13 2012-01-24 Image processing device, imaging device, image processing method, imaging method, and image processing program for pseudo-color suppression in an image

Publications (1)

Publication Number Publication Date
WO2009011308A1 true WO2009011308A1 (ja) 2009-01-22

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Country Status (5)

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US (3) US8106974B2 (ja)
EP (1) EP2178305B1 (ja)
JP (1) JP4914303B2 (ja)
KR (1) KR101344824B1 (ja)
WO (1) WO2009011308A1 (ja)

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Also Published As

Publication number Publication date
EP2178305A4 (en) 2014-04-02
US8542299B2 (en) 2013-09-24
EP2178305B1 (en) 2016-09-14
KR101344824B1 (ko) 2013-12-26
JP2009021962A (ja) 2009-01-29
US20140022421A1 (en) 2014-01-23
US20120176524A1 (en) 2012-07-12
KR20100053558A (ko) 2010-05-20
US20100182478A1 (en) 2010-07-22
EP2178305A1 (en) 2010-04-21
JP4914303B2 (ja) 2012-04-11
US8106974B2 (en) 2012-01-31
US9232203B2 (en) 2016-01-05

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