JP2005130241A5 - - Google Patents
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- JP2005130241A5 JP2005130241A5 JP2003364250A JP2003364250A JP2005130241A5 JP 2005130241 A5 JP2005130241 A5 JP 2005130241A5 JP 2003364250 A JP2003364250 A JP 2003364250A JP 2003364250 A JP2003364250 A JP 2003364250A JP 2005130241 A5 JP2005130241 A5 JP 2005130241A5
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- pass filter
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Claims (4)
前記被写体のグリーン信号、レッド信号およびブルー信号に対応する前記撮像素子の出力信号から輝度信号を生成する輝度信号生成手段と、
前記被写体のグリーン信号に対応する前記撮像素子の出力信号に対して、水平方向のハイパスフィルタ処理又は水平方向のバンドパスフィルタ処理を含む処理を施して水平補正信号を生成する水平アパーチャ補正手段と、
前記被写体のグリーン信号に対応する前記撮像素子の出力信号に対して、垂直方向のハイパスフィルタ処理又は垂直方向のバンドパスフィルタ処理を含む処理を施して垂直補正信号を生成する垂直アパーチャ補正手段と、
前記被写体のグリーン信号、レッド信号およびブルー信号に対応する前記撮像素子の出力信号に対して、斜め方向のハイパスフィルタ処理又は斜め方向のバンドバスフィルタ処理を含む処理を施して斜め補正信号を生成する斜めアパーチャ補正手段と、
前記輝度信号に、前記水平補正信号と、前記垂直補正信号と、前記斜め補正信号とを加算する加算手段と、
を備える画像信号処理装置。 An image sensor comprising a primary color Bayer array filter, and photoelectrically converting green signals, red signals, and blue signals, which are optical signals of a subject that has passed through the filter, to generate output signals;
A luminance signal generating means for generating a luminance signal from the output signal of the image sensor corresponding to the green signal, red signal and blue signal of the subject;
Horizontal aperture correction means for generating a horizontal correction signal by performing processing including horizontal high-pass filter processing or horizontal band-pass filter processing on the output signal of the image sensor corresponding to the green signal of the subject;
Vertical aperture correction means for generating a vertical correction signal by performing processing including vertical high-pass filter processing or vertical band-pass filter processing on the output signal of the image sensor corresponding to the green signal of the subject;
An oblique correction signal is generated by subjecting the output signal of the image sensor corresponding to the green signal, red signal, and blue signal of the subject to processing including oblique high-pass filter processing or oblique band-pass filter processing. Oblique aperture correction means;
Adding means for adding the horizontal correction signal, the vertical correction signal, and the oblique correction signal to the luminance signal;
An image signal processing apparatus.
前記被写体のグリーン信号、レッド信号およびブルー信号に対応する前記撮像素子の出力信号から輝度信号を生成する第２のステップと、
前記被写体のグリーン信号に対応する前記撮像素子の出力信号に対して、水平方向のハイパスフィルタ処理又は水平方向のバンドパスフィルタ処理を含む処理を施して水平補正信号を生成する第３のステップと、
前記被写体のグリーン信号に対応する前記撮像素子の出力信号に対して、垂直方向のハイパスフィルタ処理又は垂直方向のバンドパスフィルタ処理を含む処理を施して垂直補正信号を生成する第４のステップと、
前記被写体のグリーン信号、レッド信号およびブルー信号に対応する前記撮像素子の出力信号に対して、斜め方向のハイパスフィルタ処理又は斜め方向のバンドバスフィルタ処理を含む処理を施して斜め補正信号を生成する第５のステップと、
前記輝度信号に、前記水平補正信号と、前記垂直補正信号と、前記斜め補正信号とを加算する第６のステップと、
を備える画像信号処理方法。 A first step in which an image pickup device including a primary color Bayer array filter photoelectrically converts a green signal, a red signal, and a blue signal, which are optical signals of a subject that has passed through the filter, to generate an output signal;
A second step of generating a luminance signal from the output signal of the image sensor corresponding to the green signal, red signal and blue signal of the subject;
A third step of generating a horizontal correction signal by performing a process including a horizontal high-pass filter process or a horizontal band-pass filter process on the output signal of the image sensor corresponding to the green signal of the subject;
A fourth step of generating a vertical correction signal by performing a process including a vertical high-pass filter process or a vertical band-pass filter process on the output signal of the image sensor corresponding to the green signal of the subject;
An oblique correction signal is generated by subjecting the output signal of the image sensor corresponding to the green signal, red signal, and blue signal of the subject to processing including oblique high-pass filter processing or oblique band-pass filter processing. A fifth step;
A sixth step of adding the horizontal correction signal, the vertical correction signal, and the oblique correction signal to the luminance signal;
An image signal processing method comprising:
前記撮像素子の出力信号から輝度信号を生成する輝度信号生成手段と、
前記撮像素子の出力信号に対して、斜め方向のハイパスフィルタ処理又は斜め方向のバンドバスフィルタ処理を含むアパーチャ補正を施して斜め補正信号を生成する斜めアパーチャ補正手段と、
前記輝度信号に、前記斜め補正信号を加算する加算手段と、
を備える画像信号処理装置。 An image sensor that includes a filter and photoelectrically converts an optical signal of a subject to generate an output signal;
A luminance signal generating means for generating a luminance signal from the output signal of the image sensor;
An oblique aperture correction unit that generates an oblique correction signal by performing an aperture correction including an oblique high-pass filter process or an oblique bandpass filter process on the output signal of the image sensor;
Adding means for adding the oblique correction signal to the luminance signal;
An image signal processing apparatus.
前記撮像素子は、前記フィルタの画素について、それぞれ出力信号を生成し、 The image sensor generates an output signal for each pixel of the filter,
前記撮像素子の出力信号に対して、前記フィルタの画素の色の混合比率が第１比率になるようにして、水平方向のハイパスフィルタ処理又は水平方向のバンドパスフィルタ処理を含む処理を施して水平補正信号を生成する水平アパーチャ補正手段と、 The output signal of the image pickup device is subjected to processing including horizontal high-pass filter processing or horizontal band-pass filter processing so that the color mixture ratio of the filter pixels becomes the first ratio. Horizontal aperture correction means for generating a correction signal;
前記撮像素子の出力信号に対して、前記フィルタの画素の色の混合比率が第１比率又は第２比率になるようにして、垂直方向のハイパスフィルタ処理又は垂直方向のバンドパスフィルタ処理を含む処理を施して垂直補正信号を生成する垂直アパーチャ補正手段と、を備え、 Processing including vertical high-pass filter processing or vertical band-pass filter processing so that the color mixing ratio of the pixel of the filter becomes the first ratio or the second ratio with respect to the output signal of the image sensor And vertical aperture correction means for generating a vertical correction signal by applying
前記斜めアパーチャ補正手段は、前記撮像素子の出力信号に対して、前記フィルタの画素の色の混合比率が第３比率になるようにして、斜め補正信号を生成し、 The oblique aperture correction unit generates an oblique correction signal so that a mixing ratio of the color of the pixel of the filter becomes a third ratio with respect to the output signal of the image sensor,
前記加算手段は、前記輝度信号に、前記水平補正信号と前記垂直補正信号と前記斜め補正信号とを加算し、 The adding means adds the horizontal correction signal, the vertical correction signal, and the oblique correction signal to the luminance signal,
前記第３比率は、前記第１比率及び前記第２比率とは異なる、 The third ratio is different from the first ratio and the second ratio.
請求項３に記載の画像信号処理装置。 The image signal processing apparatus according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003364250A JP4329485B2 (en) | 2003-10-24 | 2003-10-24 | Image signal processing apparatus and image signal processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003364250A JP4329485B2 (en) | 2003-10-24 | 2003-10-24 | Image signal processing apparatus and image signal processing method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005130241A JP2005130241A (en) | 2005-05-19 |
| JP2005130241A5 true JP2005130241A5 (en) | 2006-12-07 |
| JP4329485B2 JP4329485B2 (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003364250A Expired - Fee Related JP4329485B2 (en) | 2003-10-24 | 2003-10-24 | Image signal processing apparatus and image signal processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4329485B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1675407A1 (en) * | 2004-12-27 | 2006-06-28 | Robert Bosch Gmbh | Colour separation |
| JP4965903B2 (en) * | 2006-06-16 | 2012-07-04 | キヤノン株式会社 | Image processing apparatus and method |
| JP4618355B2 (en) | 2008-09-25 | 2011-01-26 | ソニー株式会社 | Image processing apparatus and image processing method |
| RU2496253C1 (en) | 2009-07-21 | 2013-10-20 | Кэнон Кабусики Кайся | Image processing device and image processing method for correcting chromatic aberration |
| BR112014004533A2 (en) * | 2011-09-29 | 2017-03-28 | Fujifilm Corp | image processing device and method, and imaging device |
| JP6386301B2 (en) * | 2014-08-28 | 2018-09-05 | 株式会社日立国際電気 | Imaging apparatus and modulation degree correction method thereof |
-
2003
- 2003-10-24 JP JP2003364250A patent/JP4329485B2/en not_active Expired - Fee Related
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