JP2006060744A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2006060744A5 JP2006060744A5 JP2004243352A JP2004243352A JP2006060744A5 JP 2006060744 A5 JP2006060744 A5 JP 2006060744A5 JP 2004243352 A JP2004243352 A JP 2004243352A JP 2004243352 A JP2004243352 A JP 2004243352A JP 2006060744 A5 JP2006060744 A5 JP 2006060744A5
- Authority
- JP
- Japan
- Prior art keywords
- value
- target pixel
- pixel value
- pixel
- peripheral
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Claims (5)
前記注目画素値又は前記注目画素値を含む周辺画素値の平均値に応じて前記閾値を変更する手段を備える、
ことを特徴とするノイズリダクション装置。 A signal in which the output pixel signal of the solid-state image sensor is input and noise is suppressed by calculating the addition average value or the weighted addition average value of the peripheral pixel value and the target pixel value whose difference value of the peripheral pixel with respect to the target pixel is within the threshold value A noise reduction device that outputs
Means for changing the threshold value according to an average value of the pixel value of interest or a peripheral pixel value including the pixel value of interest;
A noise reduction device characterized by that.
前記注目画素値又は前記注目画素値を含む周辺画素値の平均値に応じて前記閾値を前記色フィルタの色別に変更する手段を備える、
ことを特徴とするノイズリダクション装置。 Corresponding to each pixel, an output pixel signal of a solid-state imaging device in which a color filter is arranged is input, and an average value or weighting of a peripheral pixel value and a target pixel value whose difference value of the peripheral pixel with respect to the target pixel is within a threshold value A noise reduction device that outputs a signal in which noise is suppressed by calculating an addition average value,
Means for changing the threshold value for each color of the color filter according to an average value of the target pixel value or the peripheral pixel value including the target pixel value;
A noise reduction device characterized by that.
前記注目画素値又は前記注目画素値を含む周辺画素値のうち、前記色フィルタの同じ色に対応する値の平均値に応じて前記閾値を前記色フィルタの色別に変更する手段を備える、
ことを特徴とするノイズリダクション装置。 Corresponding to each pixel, an output pixel signal of a solid-state imaging device in which a color filter is arranged is input, and an average value or weighting of a peripheral pixel value and a target pixel value whose difference value of the peripheral pixel with respect to the target pixel is within a threshold value A noise reduction device that outputs a signal in which noise is suppressed by calculating an addition average value,
Means for changing the threshold value for each color of the color filter according to an average value of values corresponding to the same color of the color filter among the target pixel value or the peripheral pixel value including the target pixel value;
A noise reduction device characterized by that.
ことを特徴とする請求項２又は３記載のノイズリダクション装置。 Means for changing the threshold for each color of the color filter according to an average value of color difference signals of the target pixel or color difference signals of peripheral pixels including the target pixel value;
The noise reduction device according to claim 2 or 3,
正方向に大きいときは前記閾値を大きくし、
負方向に大きいときは小さく設定する、
手段を備える、
ことを特徴とする請求項４記載のノイズリダクション装置。 A color difference signal of the target pixel value or a peripheral pixel value including the target pixel value is
If it is large in the positive direction, increase the threshold,
If it is large in the negative direction, set it small.
With means,
The noise reduction device according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004243352A JP2006060744A (en) | 2004-08-24 | 2004-08-24 | Noise reduction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004243352A JP2006060744A (en) | 2004-08-24 | 2004-08-24 | Noise reduction apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006060744A JP2006060744A (en) | 2006-03-02 |
| JP2006060744A5 true JP2006060744A5 (en) | 2007-09-06 |
Family
ID=36107820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004243352A Pending JP2006060744A (en) | 2004-08-24 | 2004-08-24 | Noise reduction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2006060744A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7929798B2 (en) | 2005-12-07 | 2011-04-19 | Micron Technology, Inc. | Method and apparatus providing noise reduction while preserving edges for imagers |
| JP4880375B2 (en) * | 2006-06-14 | 2012-02-22 | 富士フイルム株式会社 | Image signal processing apparatus and image signal processing method |
| JP4946795B2 (en) | 2007-10-29 | 2012-06-06 | ソニー株式会社 | Image processing apparatus and image processing method |
| JP5127627B2 (en) * | 2008-08-05 | 2013-01-23 | 三菱電機株式会社 | Image processing device |
| JP5251637B2 (en) | 2009-03-16 | 2013-07-31 | 株式会社リコー | Noise reduction device, noise reduction method, noise reduction program, recording medium |
| CN102006430B (en) * | 2009-09-02 | 2013-07-10 | 英属开曼群岛商恒景科技股份有限公司 | Noise removing method applied to image sensor and relevant device |
| CN102316248B (en) * | 2010-06-29 | 2013-04-17 | 北京创毅视讯科技有限公司 | Noise removing method and device |
| US8693801B2 (en) | 2010-09-28 | 2014-04-08 | Panasonic Corporation | Image processing device, image processing method, and integrated circuit |
| JP5843641B2 (en) | 2012-02-07 | 2016-01-13 | 株式会社東芝 | Image processing apparatus and solid-state imaging apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0686104A (en) * | 1992-09-04 | 1994-03-25 | Matsushita Electric Ind Co Ltd | Noise reduction device |
| JP3264659B2 (en) * | 1999-06-17 | 2002-03-11 | 松下電器産業株式会社 | Noise reduction apparatus and method and recording medium therefor |
| JP2002010274A (en) * | 2000-06-20 | 2002-01-11 | Olympus Optical Co Ltd | Device for processing colored images |
| JP4210021B2 (en) * | 2000-06-21 | 2009-01-14 | 富士フイルム株式会社 | Image signal processing apparatus and image signal processing method |
| JP2002101342A (en) * | 2000-09-22 | 2002-04-05 | Casio Comput Co Ltd | Method for detecting defective pixel in imaging device |
| JP4014399B2 (en) * | 2001-12-13 | 2007-11-28 | 松下電器産業株式会社 | Noise reduction apparatus and method |
| JP2004054884A (en) * | 2002-05-31 | 2004-02-19 | Sanyo Electric Co Ltd | Image processing device |
-
2004
- 2004-08-24 JP JP2004243352A patent/JP2006060744A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2011055038A5 (en) | ||
| WO2007054931A3 (en) | Image enhancement in the mosaic domain | |
| JP6492055B2 (en) | Device for acquiring bimodal images | |
| JP2007535871A5 (en) | ||
| WO2009050591A3 (en) | Wide dynamic range cmos image sensor | |
| WO2008091207A8 (en) | Border region processing in images | |
| US20110080503A1 (en) | Image sensing apparatus | |
| WO2008065641A3 (en) | Improved processing of mosaic images | |
| US20080179490A1 (en) | Solid-state image pickup device | |
| WO2015038569A3 (en) | Oversampled image sensor with conditional pixel readout | |
| MY180913A (en) | Imaging method, imaging device, and electronic device | |
| JP2014023070A5 (en) | ||
| JP2010506493A5 (en) | ||
| WO2008066699A3 (en) | Processing images having color and panchromatic pixels | |
| JP6418785B2 (en) | Image sensor, control method thereof, control program, and signal processing apparatus | |
| JP2011004089A5 (en) | ||
| JP2006060744A5 (en) | ||
| JP2010081387A5 (en) | ||
| JP2007300221A5 (en) | ||
| JP2010514052A5 (en) | ||
| WO2008027475A3 (en) | Image sensor defect identification using blurring techniques | |
| JP2014021928A (en) | Image processor, image processing method and program | |
| WO2010058497A1 (en) | Image processing device and image processing method | |
| US9172869B2 (en) | Image data aggregating high dynamic range imaging systems and associated methods | |
| JP2012513716A5 (en) |