JP6360211B2 - 多重センサを有する高ダイナミックレンジカメラ - Google Patents
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
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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
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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
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
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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
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
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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
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
- H04N23/951—Computational photography systems, e.g. light-field imaging systems by using two or more images to influence resolution, frame rate or aspect ratio
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/57—Control of the dynamic range
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
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- Exposure Control For Cameras (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Color Television Image Signal Generators (AREA)
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Description
以下の説明では、本発明をより完全に理解できるように具体的な詳細を記す。しかし本発明は、これらの詳細なしに実施されてよい。他方で、本発明を不必要に曖昧にするのを避けるために、よく知られている要素は、図示または詳細に説明しなかった。従って、明細書と図面は制限するものではなく、例示することを意図すると見なされなければならない。
を同時に把捉できるようにする、多数のCCDチップを有する電子カメラを提供することに決定した。
は、たとえば観察者が画像を見るのを困難にしかねない周囲照明を克服するために高輝度ディスプレイを含んでよい。代替として画面34は、たとえば2002年2月27日に提出された特許文献2、または2003年3月13日に提出された特許文献3に開示された高ダイナミックレンジディスプレイ装置を含んでよい。いずれの出願も参照によって本願に編入される。このような実施例において、電子カメラ20は、高ダイナミックレンジディスプレイ装置を周囲照明から遮蔽するためのフード(hood)を含むことができる。
Claims (16)
- 複数の画像センサと、光学システムと、メモリと、コントローラと、複数のデータ線とを備える電子カメラであって、
前記複数の画像センサは第1受光チップと第2受光チップとを含み、前記第1受光チップと前記第2受光チップとのそれぞれは第1レジスタと第2レジスタとを有するとともに、複数の画素位置において光強度を測定するように作動し、前記第1受光チップと前記第2受光チップとは互いに異なる特徴を有し、
前記光学システムは、前記第1受光チップと前記第2受光チップとが同じ画像に露出されるように前記第1受光チップと前記第2受光チップとのそれぞれに光を焦点合わせするように構成され、
前記コントローラは、ソフトウェアによって指示されるように構成されたマイクロプロセッサを備え、
前記データ線は、前記第1受光チップと前記第2受光チップとから前記コントローラに画素データを生成するように前記第1受光チップと前記第2受光チップと前記コントローラとに接続され、
前記コントローラは、第1画像把捉期間に亘って同時に前記第1受光チップと前記第2受光チップが前記同じ画像の対応する第1露出と第2露出とを把捉するようにすることと、
前記第1受光チップと前記第2受光チップとが前記第1画像把捉期間に亘って把捉された第1画素データを前記第1レジスタと前記第2レジスタとに記憶することと、
第2画像把捉期間に亘って同時に前記第1受光チップと前記第2受光チップが前記同じ画像の対応する第3露出と第4露出とを把捉するようにすることと、
前記第1受光チップと前記第2受光チップとの画素位置から前記第2画像把捉期間に亘って把捉された第2画素データを受取るとともに、前記第1受光チップと前記第2受光チップとの前記第1レジスタと前記第2レジスタとから前記第1画像把捉期間に亘って把捉された前記第1画素データを受取ることと、
前記同じ画像を表す組合せデータを生成すべく、前記第1受光チップと前記第2受光チップとからの前記第1画素データと前記第2画素データとを組合せることと、
前記組合せデータを前記メモリに記憶することとを行うように構成され、
前記第2受光チップは、前記第1受光チップよりも高いダイナミックレンジを有する、
電子カメラ。 - 前記第1受光チップはカラーセンサを備え、
前記第2受光チップはモノクロ光センサを備える、
請求項1記載の電子カメラ。 - 前記第2受光チップは、前記第1受光チップよりも低い解像度を有する、
請求項1記載の電子カメラ。 - 前記第2受光チップは、各方向で前記第1受光チップの4分の1の解像度を有する、
請求項1記載の電子カメラ。 - 前記第1受光チップは、1920×1080以上の解像度を有する、
請求項1記載の電子カメラ。 - 前記組合せデータは、高ダイナミックレンジ情報を含む第1部分と、トーンマップデータを含む第2部分とを有する、
請求項1〜5の何れか一項記載の電子カメラ。 - 前記電子カメラはさらに、光が選択的に前記第1受光チップと前記第2受光チップとに到達することを許容する機械的シャッタを備える、
請求項1〜6の何れか一項記載の電子カメラ。 - 前記組合せデータは、高ダイナミックレンジ画像フォーマットである、
請求項1〜6の何れか一項記載の電子カメラ。 - 前記高ダイナミックレンジ画像フォーマットは、種々のレベルの輝度を表すべく各色16ビットもしくは32ビットを使用する、
請求項8記載の電子カメラ。 - 前記第1受光チップと前記第2受光チップとのうちの少なくとも一つは、高ダイナミックレンジを有する、
請求項1〜8の何れか一項記載の電子カメラ。 - 前記第1受光チップは高解像度と標準ダイナミックレンジとを有し、
前記第2受光チップは低解像度と高ダイナミックレンジとを有する、
請求項1〜10の何れか一項記載の電子カメラ。 - 前記コントローラは、前記第1受光チップと前記第2受光チップとを、互いに異なる期間において露出させるように構成される、
請求項1〜10の何れか一項記載の電子カメラ。 - 前記コントローラは、前記第1画像把捉期間と前記第2画像把捉期間において前記第1受光チップと前記第2受光チップとのうちの1つが多重露光を把捉するように作動させるように構成される、
請求項1〜10の何れか一項記載の電子カメラ。 - 前記第1受光チップと前記第2受光チップとのそれぞれは、CCDを備える、
請求項1〜13の何れか一項記載の電子カメラ。 - 前記コントローラは、前記第1受光チップと前記第2受光チップとが前記第1画素データを記憶した後であって、前記第1受光チップと前記第2受光チップとが対応する前記第3露出と前記第4露出とを把捉する前には、
前記画素位置に記憶されたいかなる電荷も前記第1受光チップと前記第2受光チップとが消去することを行うように構成される、
請求項1〜14の何れか一項記載の電子カメラ。 - 前記第1画像把捉期間と前記第2画像把捉期間とは、互いに異なる長さを有する、
請求項1〜15の何れか一項記載の電子カメラ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/609,837 US8242426B2 (en) | 2006-12-12 | 2006-12-12 | Electronic camera having multiple sensors for capturing high dynamic range images and related methods |
US11/609,837 | 2006-12-12 |
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JP2014077656A Division JP2014161055A (ja) | 2006-12-12 | 2014-04-04 | 多重センサを有する高ダイナミックレンジカメラ |
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JP2017118551A JP2017118551A (ja) | 2017-06-29 |
JP6360211B2 true JP6360211B2 (ja) | 2018-07-18 |
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JP2009541566A Active JP5551937B2 (ja) | 2006-12-12 | 2007-12-12 | 多重センサを有する高ダイナミックレンジカメラ、および画像生成方法 |
JP2014077656A Pending JP2014161055A (ja) | 2006-12-12 | 2014-04-04 | 多重センサを有する高ダイナミックレンジカメラ |
JP2017008539A Active JP6360211B2 (ja) | 2006-12-12 | 2017-01-20 | 多重センサを有する高ダイナミックレンジカメラ |
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JP2009541566A Active JP5551937B2 (ja) | 2006-12-12 | 2007-12-12 | 多重センサを有する高ダイナミックレンジカメラ、および画像生成方法 |
JP2014077656A Pending JP2014161055A (ja) | 2006-12-12 | 2014-04-04 | 多重センサを有する高ダイナミックレンジカメラ |
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US (3) | US8242426B2 (ja) |
EP (1) | EP2123026A4 (ja) |
JP (3) | JP5551937B2 (ja) |
KR (1) | KR101449973B1 (ja) |
CN (1) | CN101622862B (ja) |
CA (1) | CA2672143C (ja) |
HK (1) | HK1139263A1 (ja) |
MX (1) | MX2009006185A (ja) |
WO (1) | WO2008073991A2 (ja) |
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CA2672143C (en) | 2015-05-05 |
WO2008073991A3 (en) | 2008-07-31 |
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