JP2007221181A - 撮像装置 - Google Patents
撮像装置 Download PDFInfo
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- JP2007221181A JP2007221181A JP2006035925A JP2006035925A JP2007221181A JP 2007221181 A JP2007221181 A JP 2007221181A JP 2006035925 A JP2006035925 A JP 2006035925A JP 2006035925 A JP2006035925 A JP 2006035925A JP 2007221181 A JP2007221181 A JP 2007221181A
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- JP
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- Prior art keywords
- unit
- noise reduction
- signal
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- gain
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
- H04N5/772—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera the recording apparatus and the television camera being placed in the same enclosure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Picture Signal Circuits (AREA)
Abstract
過剰なノイズ低減による画像劣化を防ぐ。
【解決手段】
信号処理部20及び圧縮部30に各々ノイズ低減部20a及び30aを設ける。CDS/AGC18aのゲインがアップされている場合で、信号処理部20のノイズ低減部20aが動作しているとき、システム制御装置44は、圧縮部30のノイズ低減部30aを非動作状態にし、信号処理部20のノイズ低減部20aが動作していないとき、システム制御装置44は、圧縮部30のノイズ低減部30aを動作状態にする。
【選択図】
図1
Description
12 撮像部
14 レンズ系
16 CCD撮像素子
18 A/D変換部
18a CDS/AGC
20 信号処理部
20a ノイズ低減部
22 カメラ画像出力端子
30 圧縮部
30a ノイズ低減部
30b MPEG2圧縮符号化回路
32 記録再生部
34 記録媒体
36 伸長部
38 再生画像出力端子
40 表示部
42 操作部
44 システム制御装置
52 セレクタ
56,58,60 フレームメモリ
62 3次元フィルタ処理部
64 フレームメモリ
66 空間フィルタ処理部
70 3次元フィルタ処理部
72 空間フィルタ処理部
Claims (4)
- 被写体を撮像する撮像手段と、
前記撮像手段から出力される画像信号のゲインを調整するゲイン調整装置と、
当該ゲイン調整装置の出力画像信号を処理する信号処理手段であって、第1のノイズ低減手段を具備する信号処理手段と、
前記信号処理手段の出力画像信号を圧縮符号化する画像圧縮手段であって、第2のノイズ低減手段を具備する画像圧縮手段と
前記信号処理手段の出力画像信号を外部に出力する出力端子と、
前記ゲイン調整手段のゲイン調整に応じて、前記第1及び第2のノイズ低減手段の一方を動作状態に、他方を非動作状態に制御する制御手段
とを具備することを特徴とする撮像装置。 - 前記第1及び第2のノイズ低減手段のそれぞれが、3次元フィルタ処理手段を具備することを特徴とする請求項1に記載の撮像装置。
- 前記第1及び第2のノイズ低減手段のそれぞれが、空間フィルタ処理手段を具備することを特徴とする請求項1又は2に記載の撮像装置。
- 前記制御手段は、前記ゲイン調整手段及び前記第1のノイズ低減手段の設定に応じて、前記第2のノイズ低減手段を制御することを特徴とする請求項1乃至3の何れか1項に記載の撮像装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006035925A JP4618802B2 (ja) | 2006-02-14 | 2006-02-14 | 撮像装置 |
US11/668,284 US7932935B2 (en) | 2006-02-14 | 2007-01-29 | Imaging apparatus capable of reducing deterioration of an image even when the gain increased |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006035925A JP4618802B2 (ja) | 2006-02-14 | 2006-02-14 | 撮像装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2007221181A true JP2007221181A (ja) | 2007-08-30 |
JP2007221181A5 JP2007221181A5 (ja) | 2009-03-26 |
JP4618802B2 JP4618802B2 (ja) | 2011-01-26 |
Family
ID=38367975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006035925A Expired - Fee Related JP4618802B2 (ja) | 2006-02-14 | 2006-02-14 | 撮像装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7932935B2 (ja) |
JP (1) | JP4618802B2 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4465002B2 (ja) * | 2007-11-16 | 2010-05-19 | オリンパス株式会社 | ノイズ低減システム、ノイズ低減プログラム及び撮像システム。 |
US8471932B2 (en) * | 2010-09-30 | 2013-06-25 | Apple Inc. | Spatial filtering for image signal processing |
US9142012B2 (en) | 2012-05-31 | 2015-09-22 | Apple Inc. | Systems and methods for chroma noise reduction |
US9014504B2 (en) | 2012-05-31 | 2015-04-21 | Apple Inc. | Systems and methods for highlight recovery in an image signal processor |
US8872946B2 (en) | 2012-05-31 | 2014-10-28 | Apple Inc. | Systems and methods for raw image processing |
US8817120B2 (en) | 2012-05-31 | 2014-08-26 | Apple Inc. | Systems and methods for collecting fixed pattern noise statistics of image data |
US9105078B2 (en) | 2012-05-31 | 2015-08-11 | Apple Inc. | Systems and methods for local tone mapping |
US9031319B2 (en) | 2012-05-31 | 2015-05-12 | Apple Inc. | Systems and methods for luma sharpening |
US8953882B2 (en) | 2012-05-31 | 2015-02-10 | Apple Inc. | Systems and methods for determining noise statistics of image data |
US9743057B2 (en) | 2012-05-31 | 2017-08-22 | Apple Inc. | Systems and methods for lens shading correction |
US9025867B2 (en) | 2012-05-31 | 2015-05-05 | Apple Inc. | Systems and methods for YCC image processing |
US9077943B2 (en) | 2012-05-31 | 2015-07-07 | Apple Inc. | Local image statistics collection |
US8917336B2 (en) | 2012-05-31 | 2014-12-23 | Apple Inc. | Image signal processing involving geometric distortion correction |
US11089247B2 (en) | 2012-05-31 | 2021-08-10 | Apple Inc. | Systems and method for reducing fixed pattern noise in image data |
US9332239B2 (en) | 2012-05-31 | 2016-05-03 | Apple Inc. | Systems and methods for RGB image processing |
JP2015097382A (ja) * | 2013-10-08 | 2015-05-21 | キヤノン株式会社 | 情報処理装置、撮像システム、情報処理方法、及びプログラム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06303464A (ja) * | 1992-12-30 | 1994-10-28 | Samsung Electron Co Ltd | 3次元的フィルタリング方法及び回路 |
JP2005210215A (ja) * | 2004-01-20 | 2005-08-04 | Konica Minolta Photo Imaging Inc | 撮像装置および動画のノイズ処理方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3783238B2 (ja) | 1995-07-31 | 2006-06-07 | ソニー株式会社 | 撮像システム、画像処理装置、符号化装置、符号化方法及びランダムノイズを除去する方法 |
JPH10285526A (ja) * | 1997-04-03 | 1998-10-23 | Konica Corp | デジタルスチルカメラ |
US6931160B2 (en) * | 2001-10-31 | 2005-08-16 | Eastman Kodak Company | Method of spatially filtering digital image for noise removal, noise estimation or digital image enhancement |
JP4365555B2 (ja) * | 2002-01-22 | 2009-11-18 | 株式会社日立製作所 | 画像記録装置 |
US7236190B2 (en) * | 2002-10-31 | 2007-06-26 | Freescale Semiconductor, Inc. | Digital image processing using white balance and gamma correction |
JP4940585B2 (ja) * | 2005-07-04 | 2012-05-30 | 富士ゼロックス株式会社 | 画像処理装置およびその方法 |
-
2006
- 2006-02-14 JP JP2006035925A patent/JP4618802B2/ja not_active Expired - Fee Related
-
2007
- 2007-01-29 US US11/668,284 patent/US7932935B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06303464A (ja) * | 1992-12-30 | 1994-10-28 | Samsung Electron Co Ltd | 3次元的フィルタリング方法及び回路 |
JP2005210215A (ja) * | 2004-01-20 | 2005-08-04 | Konica Minolta Photo Imaging Inc | 撮像装置および動画のノイズ処理方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4618802B2 (ja) | 2011-01-26 |
US20070188634A1 (en) | 2007-08-16 |
US7932935B2 (en) | 2011-04-26 |
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