JP2009027422A - 電子ズーム装置 - Google Patents
電子ズーム装置 Download PDFInfo
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- JP2009027422A JP2009027422A JP2007188101A JP2007188101A JP2009027422A JP 2009027422 A JP2009027422 A JP 2009027422A JP 2007188101 A JP2007188101 A JP 2007188101A JP 2007188101 A JP2007188101 A JP 2007188101A JP 2009027422 A JP2009027422 A JP 2009027422A
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- pixel data
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- image
- Prior art date
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- 238000000034 method Methods 0.000 claims abstract description 20
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
- H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
- H04N25/443—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by reading pixels from selected 2D regions of the array, e.g. for windowing or digital zooming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4023—Scaling of whole images or parts thereof, e.g. expanding or contracting based on decimating pixels or lines of pixels; based on inserting pixels or lines of pixels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Studio Devices (AREA)
- Image Processing (AREA)
Abstract
【効果】 スムーズで画質低下のないズーム処理ができる。
【選択図】 図2
Description
12 …撮像装置
14 …キー入力装置
16 …カメラ処理回路
18 …CPU
24 …メモリ制御回路
26 …メモリ
30 …1/2水平間引き回路
32 …バッファコントローラ
34 …イメージバッファ
36 …ズーム回路
Claims (2)
- 第1メモリに格納された画像データのうちズーム倍率に基づいて決まる指定画素から水平方向に連続する所定量の元画素データを前記第1メモリから読み出す読出し手段、
ズーム倍率がnより大きいとき前記読出し手段によって読み出された元画素データに1/n倍(nは自然数)の水平方向の間引き処理を施して間引き画素データを出力し、前記ズーム倍率がn以下のとき前記元画素データをそのまま出力する水平間引き手段、
前記間引き画素データまたは前記元画素データを書き込む第2メモリ、
前記ズーム倍率がn以下のとき前記第2メモリから前記元画素データを読み出し、前記ズーム倍率がnより大きいとき前記第2メモリから前記間引き画素データを読出す読出し手段、および
前記読出し手段によって読み出した前記間引き画素データまたは前記元画素データにズーム処理を施してズーム画像を作成するズーム処理手段を備える、電子ズーム装置。 - 前記nは2のべき乗である、請求項1記載の電子ズーム装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007188101A JP4854620B2 (ja) | 2007-07-19 | 2007-07-19 | 電子ズーム装置およびプログラム |
US12/175,780 US8054345B2 (en) | 2007-07-19 | 2008-07-18 | Electronic zooming apparatus and digital camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007188101A JP4854620B2 (ja) | 2007-07-19 | 2007-07-19 | 電子ズーム装置およびプログラム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009027422A true JP2009027422A (ja) | 2009-02-05 |
JP4854620B2 JP4854620B2 (ja) | 2012-01-18 |
Family
ID=40264518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007188101A Expired - Fee Related JP4854620B2 (ja) | 2007-07-19 | 2007-07-19 | 電子ズーム装置およびプログラム |
Country Status (2)
Country | Link |
---|---|
US (1) | US8054345B2 (ja) |
JP (1) | JP4854620B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8237808B2 (en) * | 2007-01-17 | 2012-08-07 | Sony Corporation | Solid state imaging device and imaging apparatus adjusting the spatial positions of pixels after addition by controlling the ratio of weight values during addition |
CN101894362B (zh) * | 2010-07-05 | 2012-02-01 | 昆山龙腾光电有限公司 | 一种图像放大装置及方法 |
CN102868855B (zh) * | 2011-07-04 | 2015-02-11 | 安凯(广州)微电子技术有限公司 | 一种数码变焦方法和装置 |
KR101889932B1 (ko) * | 2012-07-25 | 2018-09-28 | 삼성전자주식회사 | 촬영 장치 및 이에 적용되는 촬영 방법 |
CN106454105A (zh) * | 2016-10-28 | 2017-02-22 | 努比亚技术有限公司 | 图像处理装置及方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002199266A (ja) * | 2000-12-25 | 2002-07-12 | Fuji Photo Film Co Ltd | ディジタル・カメラおよびその動作制御方法 |
JP2002330329A (ja) * | 2001-04-27 | 2002-11-15 | Olympus Optical Co Ltd | 撮像装置 |
JP2007124542A (ja) * | 2005-10-31 | 2007-05-17 | Canon Inc | 撮像装置及びその制御方法及びプログラム及び記憶媒体 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69319810T2 (de) * | 1992-09-01 | 1998-12-03 | Canon Kk | Bildverarbeitungsgerät |
JP3133702B2 (ja) * | 1997-05-30 | 2001-02-13 | 三洋電機株式会社 | ディジタルスチルカメラ |
JP4280319B2 (ja) * | 1998-03-11 | 2009-06-17 | キヤノン株式会社 | 画像処理装置、画像処理方法及びコンピュータ読み取り可能な記憶媒体 |
JP4378804B2 (ja) * | 1999-09-10 | 2009-12-09 | ソニー株式会社 | 撮像装置 |
JP4593820B2 (ja) * | 2000-06-15 | 2010-12-08 | キヤノン株式会社 | 撮像装置、画像処理装置及び画像処理方法 |
JP4231620B2 (ja) * | 2000-10-11 | 2009-03-04 | メディア・テック・ユーエスエイ・インコーポレーテッド | 画像処理方法および装置 |
JP3913491B2 (ja) * | 2001-04-20 | 2007-05-09 | 三洋電機株式会社 | ディジタルズーム装置 |
JP4307780B2 (ja) * | 2002-03-07 | 2009-08-05 | 富士フイルム株式会社 | 固体撮像装置およびその信号読出し方法 |
JP3897667B2 (ja) * | 2002-09-13 | 2007-03-28 | ローム株式会社 | デジタルカメラ |
JP4141800B2 (ja) * | 2002-11-01 | 2008-08-27 | 株式会社リコー | デジタルカメラ |
DE10315442A1 (de) * | 2003-04-03 | 2004-11-11 | Bts Media Solutions Gmbh | Verfahren und Schaltung zur Skalierung von Rasterbildern |
US20090034877A1 (en) * | 2004-12-07 | 2009-02-05 | Koninklijke Philips Electronics N.V. | Method and device for modifying the size of an image |
JP2007109204A (ja) * | 2005-09-15 | 2007-04-26 | Fujitsu Ltd | 画像処理装置及び画像処理方法 |
TWI286441B (en) * | 2005-11-14 | 2007-09-01 | Etron Technology Inc | Scaling control device for image processing |
-
2007
- 2007-07-19 JP JP2007188101A patent/JP4854620B2/ja not_active Expired - Fee Related
-
2008
- 2008-07-18 US US12/175,780 patent/US8054345B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002199266A (ja) * | 2000-12-25 | 2002-07-12 | Fuji Photo Film Co Ltd | ディジタル・カメラおよびその動作制御方法 |
JP2002330329A (ja) * | 2001-04-27 | 2002-11-15 | Olympus Optical Co Ltd | 撮像装置 |
JP2007124542A (ja) * | 2005-10-31 | 2007-05-17 | Canon Inc | 撮像装置及びその制御方法及びプログラム及び記憶媒体 |
Also Published As
Publication number | Publication date |
---|---|
US8054345B2 (en) | 2011-11-08 |
US20090021608A1 (en) | 2009-01-22 |
JP4854620B2 (ja) | 2012-01-18 |
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