WO2007082289A3 - Color filter array with neutral elements and color image formation - Google Patents

Color filter array with neutral elements and color image formation Download PDF

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Publication number
WO2007082289A3
WO2007082289A3 PCT/US2007/060427 US2007060427W WO2007082289A3 WO 2007082289 A3 WO2007082289 A3 WO 2007082289A3 US 2007060427 W US2007060427 W US 2007060427W WO 2007082289 A3 WO2007082289 A3 WO 2007082289A3
Authority
WO
WIPO (PCT)
Prior art keywords
color
elements
spatial resolution
color filter
luminance
Prior art date
Application number
PCT/US2007/060427
Other languages
French (fr)
Other versions
WO2007082289A2 (en
Inventor
Gang Luo
Original Assignee
Gang Luo
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
Priority claimed from CN2006100951515A external-priority patent/CN101150731B/en
Priority claimed from US11/616,840 external-priority patent/US20070159542A1/en
Application filed by Gang Luo filed Critical Gang Luo
Publication of WO2007082289A2 publication Critical patent/WO2007082289A2/en
Publication of WO2007082289A3 publication Critical patent/WO2007082289A3/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
    • H04N25/10—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
    • 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
    • H04N25/135—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on four or more different wavelength filter elements
    • H04N25/136—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on four or more different wavelength filter elements using complementary colours
    • 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
    • H04N2209/047—Picture signal generators using solid-state devices having a single pick-up sensor using multispectral pick-up elements

Abstract

The invention is directed to a method and a device for providing higher performance imaging capture using a novel pattern of a color filter array that enables one to achieve higher sampling rate for luminance than for chrominance. A majority of the elements in the CFA are neutral elements. Gray scale images with high spatial resolution and high light sensitivity can be acquired from image samplings at these neutral elements. The remaining elements of the CFA are color filtered ones. Color elements cluster to form a repeating block pattern. Color images with low spatial resolution but low color artifacts can be acquired from image samplings at these color filter elements. The color images are transformed into a luminance-chrominance color space, and the luminance components are replaced with the gray scale images to regain high spatial resolution.
PCT/US2007/060427 2006-01-12 2007-01-11 Color filter array with neutral elements and color image formation WO2007082289A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US75836106P 2006-01-12 2006-01-12
US60/758,361 2006-01-12
CN2006100951515A CN101150731B (en) 2006-09-22 2006-09-22 Color filtering array for digital imaging and its imaging method
CN200610095151.5 2006-09-22
US11/616,840 US20070159542A1 (en) 2006-01-12 2006-12-27 Color filter array with neutral elements and color image formation
US11/616,840 2006-12-27

Publications (2)

Publication Number Publication Date
WO2007082289A2 WO2007082289A2 (en) 2007-07-19
WO2007082289A3 true WO2007082289A3 (en) 2008-02-14

Family

ID=38257131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/060427 WO2007082289A2 (en) 2006-01-12 2007-01-11 Color filter array with neutral elements and color image formation

Country Status (1)

Country Link
WO (1) WO2007082289A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2173104B1 (en) * 2007-08-03 2017-07-05 Panasonic Intellectual Property Corporation of America Image data generating apparatus, method, and program
US20120106840A1 (en) * 2010-10-28 2012-05-03 Amit Singhal Combining images captured with different color patterns
US20120188409A1 (en) * 2011-01-24 2012-07-26 Andrew Charles Gallagher Camera with multiple color sensors
JP6152646B2 (en) * 2012-03-21 2017-06-28 株式会社リコー Compound eye camera device and vehicle equipped with the same
CN104394391B (en) * 2014-11-25 2016-09-28 广东威创视讯科技股份有限公司 The image processing method of the dot matrix image of collected by camera and system
WO2018183206A1 (en) * 2017-03-26 2018-10-04 Apple, Inc. Enhancing spatial resolution in a stereo camera imaging system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6476865B1 (en) * 2001-03-07 2002-11-05 Eastman Kodak Company Sparsely sampled image sensing device with color and luminance photosites
US6771243B2 (en) * 2001-01-22 2004-08-03 Matsushita Electric Industrial Co., Ltd. Display device and method for driving the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771243B2 (en) * 2001-01-22 2004-08-03 Matsushita Electric Industrial Co., Ltd. Display device and method for driving the same
US6476865B1 (en) * 2001-03-07 2002-11-05 Eastman Kodak Company Sparsely sampled image sensing device with color and luminance photosites

Also Published As

Publication number Publication date
WO2007082289A2 (en) 2007-07-19

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