JP2007336386A5 - - Google Patents

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JP2007336386A5
JP2007336386A5 JP2006167854A JP2006167854A JP2007336386A5 JP 2007336386 A5 JP2007336386 A5 JP 2007336386A5 JP 2006167854 A JP2006167854 A JP 2006167854A JP 2006167854 A JP2006167854 A JP 2006167854A JP 2007336386 A5 JP2007336386 A5 JP 2007336386A5
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imaging
noise suppression
image
state
suppression process
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JP2006167854A
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Japanese (ja)
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JP2007336386A (en
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Priority to JP2006167854A priority Critical patent/JP2007336386A/en
Priority claimed from JP2006167854A external-priority patent/JP2007336386A/en
Publication of JP2007336386A publication Critical patent/JP2007336386A/en
Publication of JP2007336386A5 publication Critical patent/JP2007336386A5/ja
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Claims (7)

複数の画素を有する撮像素子と、
前記撮像素子での結像の状態を変えて得られる複数の画像を、画素毎又は画素領域毎に比較する比較手段と、
前記撮像素子により得られた画像に対して信号処理を施す信号処理手段とを備え、
前記信号処理手段は、前記比較手段での比較により得られた画像間の差分値が所定値より小さい画素又は画素領域では第１のノイズ抑圧処理を行い、前記差分値が前記所定値より大きい画素又は画素領域では前記第１のノイズ抑圧処理よりも高周波成分が強調される第２のノイズ抑圧処理を行うことを特徴とする撮像装置。 An image sensor having a plurality of pixels;
Comparing means for comparing a plurality of images obtained by changing the state of image formation on the image sensor for each pixel or each pixel region;
Signal processing means for performing signal processing on an image obtained by the imaging device,
The signal processing means performs a first noise suppression process in a pixel or a pixel area where the difference value between images obtained by the comparison in the comparison means is smaller than a predetermined value, and the difference value is larger than the predetermined value. Alternatively, in the pixel region, the second noise suppression process in which a high frequency component is emphasized as compared with the first noise suppression process is performed. 前記第１のノイズ抑圧処理は帯域制限処理を含み、前記第２のノイズ抑圧処理はアパーチャ補正処理を含むことを特徴とする請求項１記載の撮像装置。   The imaging apparatus according to claim 1, wherein the first noise suppression process includes a band limiting process, and the second noise suppression process includes an aperture correction process. 前記差分値は、それぞれの画像における所定の周波数帯域成分の値、又は当該所定の周波数帯域成分を基に得られる値であることを特徴とする請求項１又は２記載の撮像装置。   The imaging apparatus according to claim 1, wherein the difference value is a value of a predetermined frequency band component in each image or a value obtained based on the predetermined frequency band component. 前記結像の状態は、前記撮像素子での光学像のフォーカスの状態であることを特徴とする請求項１〜３の何れか１項に記載の撮像装置。   The imaging apparatus according to claim 1, wherein the imaging state is a focus state of an optical image on the imaging element. 前記結像の状態は、前記撮像素子での光学像の動きブレの状態であることを特徴とする請求項１〜３の何れか１項に記載の撮像装置。   The imaging apparatus according to claim 1, wherein the imaging state is a motion blurring state of an optical image on the imaging element. 前記複数の画像は、前記撮像素子での結像の状態を変えて撮影した複数の撮像画像から、前記撮像素子を遮光状態にして撮影した黒画像を各々差し引いた複数の画像であることを特徴とする請求項１〜５の何れか１項に記載の撮像装置。   The plurality of images are a plurality of images obtained by subtracting a black image captured with the image sensor being in a light-shielded state from a plurality of captured images captured while changing the imaging state of the image sensor. The imaging device according to any one of claims 1 to 5. 複数の画素を有する撮像素子での結像の状態を変えて複数の画像を得る撮像工程と、
前記撮像工程により得られる前記複数の画像を、画素毎又は画素領域毎に比較する比較工程と、
前記撮像工程により得られた画像に対して信号処理を施す信号処理工程とを有し、
前記信号処理工程では、前記比較工程での比較により得られた画像間の差分値が所定値より小さい画素又は画素領域では第１のノイズ抑圧処理を行い、前記差分値が前記所定値より大きい画素又は画素領域では前記第１のノイズ抑圧処理よりも高周波成分が強調される第２のノイズ抑圧処理を行うことを特徴とする撮像方法。 An imaging process for obtaining a plurality of images by changing the state of image formation on an imaging device having a plurality of pixels;
A comparison step of comparing the plurality of images obtained by the imaging step for each pixel or each pixel region;
A signal processing step of performing signal processing on the image obtained by the imaging step,
In the signal processing step, a first noise suppression process is performed in a pixel or a pixel region where a difference value between images obtained by the comparison in the comparison step is smaller than a predetermined value, and the difference value is larger than the predetermined value. Alternatively, in the pixel region, the second noise suppression process in which a high frequency component is emphasized as compared with the first noise suppression process is performed.
JP2006167854A 2006-06-16 2006-06-16 Image pick-up device and image pick-up method Pending JP2007336386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006167854A JP2007336386A (en) 2006-06-16 2006-06-16 Image pick-up device and image pick-up method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006167854A JP2007336386A (en) 2006-06-16 2006-06-16 Image pick-up device and image pick-up method

Publications (2)

Publication Number Publication Date
JP2007336386A JP2007336386A (en) 2007-12-27
JP2007336386A5 true JP2007336386A5 (en) 2009-07-30

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Family Applications (1)

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JP2006167854A Pending JP2007336386A (en) 2006-06-16 2006-06-16 Image pick-up device and image pick-up method

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5302158B2 (en) * 2009-10-14 2013-10-02 オリンパス株式会社 Image signal processing apparatus, image signal processing program, and image signal processing method
JP5549440B2 (en) * 2010-07-12 2014-07-16 株式会社リコー Imaging device, color shift adjustment method for display monitor device, and color shift adjustment device for display monitor device
US8711250B2 (en) 2011-02-09 2014-04-29 Olympus Corporation Image signal processing apparatus and image signal processing method
JP6088344B2 (en) * 2013-05-02 2017-03-01 日本放送協会 Imaging device and noise removal program
WO2019181299A1 (en) * 2018-03-23 2019-09-26 富士フイルム株式会社 Imaging control device, imaging device, imaging control method, and imaging control program

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001092955A (en) * 1999-09-21 2001-04-06 Fuji Photo Film Co Ltd Method and device for processing image
JP2002218312A (en) * 2001-01-17 2002-08-02 Ricoh Co Ltd Camera capable of soft focusing photographing
JP2002344816A (en) * 2001-05-18 2002-11-29 Auto Network Gijutsu Kenkyusho:Kk Imaging and display device
JP3903048B2 (en) * 2004-04-26 2007-04-11 キヤノン株式会社 Image extraction method

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