JP2003333410A5 - - Google Patents
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- JP2003333410A5 JP2003333410A5 JP2002136009A JP2002136009A JP2003333410A5 JP 2003333410 A5 JP2003333410 A5 JP 2003333410A5 JP 2002136009 A JP2002136009 A JP 2002136009A JP 2002136009 A JP2002136009 A JP 2002136009A JP 2003333410 A5 JP2003333410 A5 JP 2003333410A5
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- pixel signal
- clock
- signal processing
- evaluation value
- thinning
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Claims (10)
前記映像信号処理手段へは前記画素信号に間引き処理を施してから供給するようにし、前記ＡＦ評価値算出手段へは前記間引き処理を施す前の撮像素子から出力される画素信号を供給するようにしたことを特徴とする撮像装置。An imaging apparatus having AF evaluation value calculation means and video signal processing means,
The video signal processing means is supplied after performing the thinning process on the pixel signal, and the AF evaluation value calculating means is supplied with the pixel signal output from the image sensor before the thinning process is performed. An imaging apparatus characterized by that.
前記撮像素子から出力される画素信号をＡ／Ｄ変換するＡ／Ｄ変換手段と、
前記撮像素子から出力される画素信号に基づいて合焦状態を評価するＡＦ評価値算出手段と、
前記撮像素子から出力される画素信号を表示装置に表示させるための信号処理を施す映像信号処理手段と、
前記Ａ／Ｄ変換手段の出力を間引く画素信号間引き手段とを備え、
前記映像信号処理手段へは前記Ａ／Ｄ変換手段でデジタル化した画素信号を前記画素信号間引き手段で間引いてから供給するようにし、前記ＡＦ評価値算出手段へは前記Ａ／Ｄ変換手段の出力を前記画素信号間引き手段で間引く前に供給するようにしたことを特徴とする撮像装置。An image sensor;
A / D conversion means for A / D converting the pixel signal output from the image sensor;
AF evaluation value calculation means for evaluating the in-focus state based on the pixel signal output from the image sensor;
Video signal processing means for performing signal processing for causing a display device to display a pixel signal output from the image sensor;
Pixel signal thinning means for thinning out the output of the A / D conversion means,
The pixel signal digitized by the A / D conversion means is supplied to the video signal processing means after being thinned by the pixel signal thinning means, and the output of the A / D conversion means is supplied to the AF evaluation value calculation means. Is supplied before being thinned by the pixel signal thinning means .
前記第１のクロック発生手段によって発生するクロック信号によって前記撮像素子、Ａ／Ｄ変換手段及びＡＦ評価値算出手段を駆動し、前記第２のクロック発生手段によって前記映像信号処理手段を駆動するようにしたことを特徴とする請求項２に記載の撮像装置。A first clock generating means and a second clock generating means;
The imaging device, the A / D converter and the AF evaluation value calculator are driven by the clock signal generated by the first clock generator, and the video signal processor is driven by the second clock generator. The imaging apparatus according to claim 2, wherein:
前記映像信号処理工程へは前記画素信号に間引き処理を施してから供給するようにし、前記ＡＦ評価値算出工程へは前記間引き処理を施す前の撮像素子から出力される画素信号を供給するようにしたことを特徴とする撮像方法。An imaging method having an AF evaluation value calculating step and a video signal processing step,
The video signal processing step is supplied after the pixel signal is subjected to a thinning process, and the AF evaluation value calculating step is supplied with a pixel signal output from the image sensor before the thinning process is performed. An imaging method characterized by the above.
前記撮像素子から出力される画素信号に基づいて合焦状態を評価するＡＦ評価値算出工程と、
前記撮像素子から出力される画素信号を表示装置に表示させるための信号処理を施す映像信号処理工程と、
前記Ａ／Ｄ変換工程の出力を間引く画素信号間引き工程とを有し、
前記映像信号処理工程へは前記Ａ／Ｄ変換工程でデジタル化した画素信号を前記画素信号間引き工程で間引いてから供給するようにし、前記ＡＦ評価値算出工程へは前記Ａ／Ｄ変換工程の出力を前記画素信号間引き工程で間引く前に供給するようにしたことを特徴とする撮像方法。An A / D conversion step of A / D converting a pixel signal output from the image sensor;
An AF evaluation value calculating step for evaluating a focused state based on a pixel signal output from the image sensor;
A video signal processing step for performing signal processing for displaying a pixel signal output from the image sensor on a display device;
A pixel signal thinning step for thinning out the output of the A / D conversion step,
The pixel signal digitized in the A / D conversion step is supplied to the video signal processing step after being thinned out in the pixel signal thinning step, and the output of the A / D conversion step is supplied to the AF evaluation value calculation step. Is supplied before thinning out in the pixel signal thinning-out step .
前記第１のクロック発生工程によって発生するクロック信号によって前記撮像素子、Ａ／Ｄ変換工程におけるＡ／Ｄ変換手段及びＡＦ評価値算出工程におけるＡＦ評価値算出手段を駆動し、前記第７のクロック発生工程によって前記映像信号処理工程における映像信号処理手段を駆動するようにしたことを特徴とする請求項７に記載の撮像方法。A first clock generation step and a second clock generation step;
The seventh clock generation is performed by driving the imaging device, the A / D conversion unit in the A / D conversion step, and the AF evaluation value calculation unit in the AF evaluation value calculation step by the clock signal generated in the first clock generation step. 8. The imaging method according to claim 7, wherein the video signal processing means in the video signal processing step is driven by the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002136009A JP4298219B2 (en) | 2002-05-10 | 2002-05-10 | Imaging apparatus and imaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002136009A JP4298219B2 (en) | 2002-05-10 | 2002-05-10 | Imaging apparatus and imaging method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003333410A JP2003333410A (en) | 2003-11-21 |
| JP2003333410A5 true JP2003333410A5 (en) | 2005-09-29 |
| JP4298219B2 JP4298219B2 (en) | 2009-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002136009A Expired - Fee Related JP4298219B2 (en) | 2002-05-10 | 2002-05-10 | Imaging apparatus and imaging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4298219B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005208392A (en) * | 2004-01-23 | 2005-08-04 | Canon Inc | Image imaging unit, image processing method and program |
| JP5092685B2 (en) | 2007-10-23 | 2012-12-05 | 株式会社ニコン | Imaging device and imaging apparatus |
| JP5132507B2 (en) * | 2008-09-26 | 2013-01-30 | オリンパス株式会社 | Focus detection apparatus and camera system |
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2002
- 2002-05-10 JP JP2002136009A patent/JP4298219B2/en not_active Expired - Fee Related
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