JP2009177703A - 画像処理方法、画像処理装置及び画像撮像装置 - Google Patents
画像処理方法、画像処理装置及び画像撮像装置 Download PDFInfo
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- JP2009177703A JP2009177703A JP2008016364A JP2008016364A JP2009177703A JP 2009177703 A JP2009177703 A JP 2009177703A JP 2008016364 A JP2008016364 A JP 2008016364A JP 2008016364 A JP2008016364 A JP 2008016364A JP 2009177703 A JP2009177703 A JP 2009177703A
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- 238000012545 processing Methods 0.000 title claims abstract description 22
- 238000003384 imaging method Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title description 14
- 230000004075 alteration Effects 0.000 claims abstract description 105
- 230000009466 transformation Effects 0.000 claims abstract description 47
- 238000012937 correction Methods 0.000 claims description 89
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000003672 processing method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 description 73
- 230000015654 memory Effects 0.000 description 48
- 238000010586 diagram Methods 0.000 description 8
- 239000003086 colorant Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
- G06T3/047—Fisheye or wide-angle transformations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/80—Geometric correction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
Description
x’=k+(xsize―k)/xsize*x (x>0のとき)
y’=−k+(xsize―k)/xsize*x (x<=0のとき)
xsize:画像の横方向のピクセル数/2
k:拡大係数(0<=k<=xsize)
また、R2,R4,R6,R8,R0は次式により求める。
R4=(R3+R5)/2 (4)
R6=(R5+R7)/2 (5)
R8=(R1+R7)/2 (6)
R0=(R1+R3+R5+R7)/4 (7)
B2,B4,B6,B8,B0は上記R2,R4,R6,R8,R0の場合と同じであるので省略する。
Y=0.299R+0.587G+0.114B (8)
Cr=0.500R−0.419G−0.081B (9)
Cb=−0.169R−0.332G+0.500B (10)
R=Y+1.402Cr (11)
G=Y−0.714Cr−0.344Cb (12)
B=Y+1.772Cb (13)
x’=k+(xsize―k)/xsize*x (x>0のとき)
y’=−k+(xsize―k)/xsize*x (x<=0のとき)
ここで、xsizeは画像の横方向のピクセル数/2、kは拡大係数(0<=k<=xsize)である。kが大きいほど左右部分の拡大率が大きくなる。
120 A/D変換器
130 ベイヤー補完部
140 倍率色収差補正部
150 MTF補正部
160 歪曲収差補正部
170 ガンマ補正部
142(R),142(G),142(B) 座標変換メモリ(SRAM)
144 倍率色収差補正座標変換演算部
146 座標変換係数テーブル
161 RGB合成部
162 座標変換メモリ(DRAM)
163 RGB分離部
164 歪曲収差補正座標変換演算部
165 座標変換係数テーブル
Claims (6)
- 前記[数1]においてxとyを以下の式で示すx’とy’、
x’=k+(xsize―k)/xsize*x (x>0のとき)
y’=−k+(xsize―k)/xsize*x (x<=0のとき)
xsize:画像の横方向のピクセル数/2
k:拡大係数(0<=k<=xsize)
に置き換えたことを特徴とする請求項1記載の画像処理方法。 - 前記[数2]においてxとyを以下の式で示すx’とy’、
x’=k+(xsize―k)/xsize*x (x>0のとき)
y’=−k+(xsize―k)/xsize*x (x<=0のとき)
xsize:画像の横方向のピクセル数/2
k:拡大係数(0<=k<=xsize)
に置き換えたことを特徴とする請求項3記載の画像処理装置。 - 歪曲収差が大きい光学系を通して画像を撮像し、歪曲収差を含む画像データを出力する
撮像素子と、
前記画像データについて、歪曲収差を補正する歪曲収差補正手段を備えた請求項3又は4に記載の画像処理装置と、
を有することを特徴とする画像撮像装置。 - 前記歪曲収差が大きい光学系は魚眼光学系であることを特徴とする請求項5記載の画像撮像装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008016364A JP4911628B2 (ja) | 2008-01-28 | 2008-01-28 | 画像処理方法、画像処理装置及び画像撮像装置 |
EP09150002A EP2083388A3 (en) | 2008-01-28 | 2009-01-02 | Image distortion correction |
US12/318,941 US8218897B2 (en) | 2008-01-28 | 2009-01-13 | Image processing method, image processing apparatus, and imaging apparatus |
CN2009100059678A CN101500077B (zh) | 2008-01-28 | 2009-01-22 | 图像处理方法、图像处理装置、以及成像装置 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2008016364A JP4911628B2 (ja) | 2008-01-28 | 2008-01-28 | 画像処理方法、画像処理装置及び画像撮像装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009177703A true JP2009177703A (ja) | 2009-08-06 |
JP4911628B2 JP4911628B2 (ja) | 2012-04-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008016364A Expired - Fee Related JP4911628B2 (ja) | 2008-01-28 | 2008-01-28 | 画像処理方法、画像処理装置及び画像撮像装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8218897B2 (ja) |
EP (1) | EP2083388A3 (ja) |
JP (1) | JP4911628B2 (ja) |
CN (1) | CN101500077B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2501134A1 (en) | 2011-03-18 | 2012-09-19 | Ricoh Company, Ltd. | Image processor and image processing method |
US8982243B2 (en) | 2010-03-02 | 2015-03-17 | Ricoh Company, Limited | Image processing device and image capturing device |
US9042675B2 (en) | 2010-08-03 | 2015-05-26 | Ricoh Company, Ltd. | Image processing apparatus, image processing method, and computer-readable recording medium which corrects an image such that some of warping of the image is left |
Families Citing this family (14)
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---|---|---|---|---|
US8237823B2 (en) | 2008-11-06 | 2012-08-07 | Samsung Electronics Co., Ltd. | Method and apparatus for canceling chromatic aberration |
JP5273371B2 (ja) | 2008-12-24 | 2013-08-28 | 株式会社リコー | 画像処理装置及び方法、並びに車載カメラ装置 |
JP5267794B2 (ja) | 2008-12-26 | 2013-08-21 | 株式会社リコー | 画像処理装置及び車載カメラ装置 |
US8624999B2 (en) | 2009-12-01 | 2014-01-07 | Ricoh Company, Ltd. | Imaging apparatus |
CZ303039B6 (cs) * | 2010-08-31 | 2012-03-07 | Vysoké ucení technické v Brne | Zpusob a zarízení pro digitální korekci obrazu |
US9720222B2 (en) | 2010-09-29 | 2017-08-01 | General Electric Company | Calibration targets for microscope imaging |
US8786737B2 (en) | 2011-08-26 | 2014-07-22 | Novatek Microelectronics Corp. | Image correction device and image correction method |
JP5818586B2 (ja) | 2011-08-31 | 2015-11-18 | キヤノン株式会社 | 画像処理装置及び画像処理方法 |
JP5868076B2 (ja) | 2011-08-31 | 2016-02-24 | キヤノン株式会社 | 画像処理装置及び画像処理方法 |
JP6417666B2 (ja) | 2013-05-15 | 2018-11-07 | 株式会社リコー | 画像処理システム |
KR101493946B1 (ko) * | 2014-04-16 | 2015-02-17 | 하이네트(주) | 광각 렌즈 이미지 보정 방법 및 그 장치 |
CN106296608B (zh) * | 2016-08-08 | 2020-08-18 | 深圳市Tcl高新技术开发有限公司 | 一种基于映射表的鱼眼图像处理方法及系统 |
KR102467882B1 (ko) * | 2017-11-28 | 2022-11-16 | 엘지디스플레이 주식회사 | 개인 몰입형 표시장치와 이의 구동방법 |
KR20210001324A (ko) * | 2019-06-27 | 2021-01-06 | 삼성전자주식회사 | 인공 신경망 모델 및 이를 포함하는 전자 장치 |
Citations (3)
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JPH0737079A (ja) * | 1993-06-25 | 1995-02-07 | Matsushita Electric Works Ltd | 画像歪み補正方法及び装置 |
JPH0746610A (ja) * | 1993-07-27 | 1995-02-14 | Tochigi Nikon:Kk | 画像入力装置 |
JP2001086392A (ja) * | 1999-09-14 | 2001-03-30 | Nippon Hoso Kyokai <Nhk> | 動画像の動き推定装置 |
Family Cites Families (7)
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CN100394787C (zh) * | 1998-02-18 | 2008-06-11 | 精工爱普生株式会社 | 图象处理装置和图象处理方法 |
US6603885B1 (en) * | 1998-04-30 | 2003-08-05 | Fuji Photo Film Co., Ltd. | Image processing method and apparatus |
KR100414083B1 (ko) * | 1999-12-18 | 2004-01-07 | 엘지전자 주식회사 | 영상왜곡 보정방법 및 이를 이용한 영상표시기기 |
EP1368970B1 (de) * | 2001-03-05 | 2005-08-10 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zum entzerren eines bildes, insbesondere für insassenschutzsysteme |
JP4596986B2 (ja) | 2005-06-07 | 2010-12-15 | オリンパス株式会社 | 画像撮像装置 |
US7920200B2 (en) * | 2005-06-07 | 2011-04-05 | Olympus Corporation | Image pickup device with two cylindrical lenses |
JP4562699B2 (ja) | 2006-07-07 | 2010-10-13 | サンデン株式会社 | 電動圧縮機 |
-
2008
- 2008-01-28 JP JP2008016364A patent/JP4911628B2/ja not_active Expired - Fee Related
-
2009
- 2009-01-02 EP EP09150002A patent/EP2083388A3/en not_active Ceased
- 2009-01-13 US US12/318,941 patent/US8218897B2/en not_active Expired - Fee Related
- 2009-01-22 CN CN2009100059678A patent/CN101500077B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0737079A (ja) * | 1993-06-25 | 1995-02-07 | Matsushita Electric Works Ltd | 画像歪み補正方法及び装置 |
JPH0746610A (ja) * | 1993-07-27 | 1995-02-14 | Tochigi Nikon:Kk | 画像入力装置 |
JP2001086392A (ja) * | 1999-09-14 | 2001-03-30 | Nippon Hoso Kyokai <Nhk> | 動画像の動き推定装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8982243B2 (en) | 2010-03-02 | 2015-03-17 | Ricoh Company, Limited | Image processing device and image capturing device |
US9042675B2 (en) | 2010-08-03 | 2015-05-26 | Ricoh Company, Ltd. | Image processing apparatus, image processing method, and computer-readable recording medium which corrects an image such that some of warping of the image is left |
EP2501134A1 (en) | 2011-03-18 | 2012-09-19 | Ricoh Company, Ltd. | Image processor and image processing method |
US8639029B2 (en) | 2011-03-18 | 2014-01-28 | Ricoh Company, Ltd. | Image processor and image processing method |
Also Published As
Publication number | Publication date |
---|---|
CN101500077B (zh) | 2012-01-25 |
US8218897B2 (en) | 2012-07-10 |
CN101500077A (zh) | 2009-08-05 |
JP4911628B2 (ja) | 2012-04-04 |
EP2083388A3 (en) | 2009-09-23 |
US20090190855A1 (en) | 2009-07-30 |
EP2083388A2 (en) | 2009-07-29 |
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