WO2008114308A1 - 画像変換装置、および変換方法 - Google Patents

画像変換装置、および変換方法 Download PDF

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Publication number
WO2008114308A1
WO2008114308A1 PCT/JP2007/000236 JP2007000236W WO2008114308A1 WO 2008114308 A1 WO2008114308 A1 WO 2008114308A1 JP 2007000236 W JP2007000236 W JP 2007000236W WO 2008114308 A1 WO2008114308 A1 WO 2008114308A1
Authority
WO
WIPO (PCT)
Prior art keywords
pixel value
estimate
line
line pixel
image
Prior art date
Application number
PCT/JP2007/000236
Other languages
English (en)
French (fr)
Inventor
Yasushi Sugama
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to JP2009504901A priority Critical patent/JP5040992B2/ja
Priority to PCT/JP2007/000236 priority patent/WO2008114308A1/ja
Publication of WO2008114308A1 publication Critical patent/WO2008114308A1/ja
Priority to US12/556,289 priority patent/US8169543B2/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4007—Interpolation-based scaling, e.g. bilinear interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal

Abstract

フィールド画像における細い斜め線の誤検出を防止し、フィールド画像から変換されるフレーム画像上の発生ノイズを低減させることを目的とし、画像変換装置１が、フィールド画像内で隣接する上下のラインの間のライン内で連続する複数の補間対象画素に対応して、上のラインの画素値を用いた下のラインとの比較用予測画素値の計算と、下のラインの画素値を用いた上のラインとの比較用予測画素値の計算とを行う手段２と、上のライン用予測画素値と実際の上のラインの画素値との差、下のライン用予測画素値と実際の下のラインの画素値との差との絶対値の和が最小となる予測画素値の組合せを探索する手段３と、最小となる組合せに対応して画素値の補間を行う手段４とを備える。
PCT/JP2007/000236 2007-03-16 2007-03-16 画像変換装置、および変換方法 WO2008114308A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009504901A JP5040992B2 (ja) 2007-03-16 2007-03-16 画像変換装置、および変換方法
PCT/JP2007/000236 WO2008114308A1 (ja) 2007-03-16 2007-03-16 画像変換装置、および変換方法
US12/556,289 US8169543B2 (en) 2007-03-16 2009-09-09 Image conversion device and method for converting a field image into a frame image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000236 WO2008114308A1 (ja) 2007-03-16 2007-03-16 画像変換装置、および変換方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/556,289 Continuation US8169543B2 (en) 2007-03-16 2009-09-09 Image conversion device and method for converting a field image into a frame image

Publications (1)

Publication Number Publication Date
WO2008114308A1 true WO2008114308A1 (ja) 2008-09-25

Family

ID=39765429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000236 WO2008114308A1 (ja) 2007-03-16 2007-03-16 画像変換装置、および変換方法

Country Status (3)

Country Link
US (1) US8169543B2 (ja)
JP (1) JP5040992B2 (ja)
WO (1) WO2008114308A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001094951A (ja) * 1999-09-21 2001-04-06 Sanyo Electric Co Ltd 走査線補間方法
JP2002112203A (ja) * 2000-09-29 2002-04-12 Toshiba Corp 補間信号生成装置
JP2003052023A (ja) * 2000-12-14 2003-02-21 Matsushita Electric Ind Co Ltd 画像角度検出装置およびそれを備えた走査線補間装置
JP2004072528A (ja) * 2002-08-07 2004-03-04 Sharp Corp 補間処理方法、補間処理プログラムおよびこれを記録した記録媒体ならびに画像処理装置およびこれを備えた画像形成装置
JP2004274361A (ja) * 2003-03-07 2004-09-30 Sharp Corp 補間処理方法、補間処理プログラムおよびこれを記録した記録媒体ならびに画像処理装置およびこれを備えた画像形成装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6133957A (en) * 1997-10-14 2000-10-17 Faroudja Laboratories, Inc. Adaptive diagonal interpolation for image resolution enhancement
JP4218640B2 (ja) * 2002-08-19 2009-02-04 ソニー株式会社 画像処理装置および方法、映像表示装置、ならびに記録情報再生装置
US7099509B2 (en) * 2002-10-11 2006-08-29 Samsung Electronics Co., Ltd. Method of edge direction detection based on the correlations between pixels of a vector and an edge direction detection system
GB2402288B (en) * 2003-05-01 2005-12-28 Imagination Tech Ltd De-Interlacing of video data
US7362376B2 (en) * 2003-12-23 2008-04-22 Lsi Logic Corporation Method and apparatus for video deinterlacing and format conversion
TWI253848B (en) * 2004-04-09 2006-04-21 Mstar Semiconductor Inc Pixel interpolation method and related pixel interpolation device
US7403234B2 (en) * 2005-05-02 2008-07-22 Samsung Electronics Co., Ltd. Method for detecting bisection pattern in deinterlacing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001094951A (ja) * 1999-09-21 2001-04-06 Sanyo Electric Co Ltd 走査線補間方法
JP2002112203A (ja) * 2000-09-29 2002-04-12 Toshiba Corp 補間信号生成装置
JP2003052023A (ja) * 2000-12-14 2003-02-21 Matsushita Electric Ind Co Ltd 画像角度検出装置およびそれを備えた走査線補間装置
JP2004072528A (ja) * 2002-08-07 2004-03-04 Sharp Corp 補間処理方法、補間処理プログラムおよびこれを記録した記録媒体ならびに画像処理装置およびこれを備えた画像形成装置
JP2004274361A (ja) * 2003-03-07 2004-09-30 Sharp Corp 補間処理方法、補間処理プログラムおよびこれを記録した記録媒体ならびに画像処理装置およびこれを備えた画像形成装置

Also Published As

Publication number Publication date
JPWO2008114308A1 (ja) 2010-06-24
JP5040992B2 (ja) 2012-10-03
US20100073557A1 (en) 2010-03-25
US8169543B2 (en) 2012-05-01

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