JP2014132266A - 露光条件及びフィルタ位置を使用したマルチモード光照射野撮像システム - Google Patents
露光条件及びフィルタ位置を使用したマルチモード光照射野撮像システム Download PDFInfo
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Abstract
【解決手段】調整可能なマルチモード光照射野撮像システムである。非均質フィルタモジュールが、光照射野撮像システムの瞳孔面に配置され、マルチモード機能を提供する。フィルタモジュールは、撮像システムに対して動かされ、露光条件が相応に調整される。これにより、マルチモード機能の調整が可能になる。
【選択図】図1A
Description
maxk_n(Qk_n,new)=mink_n(Qk_n,cal)、又は
maxk_n(Qk_n,new)=meank_n(Qk_n,cal)
○フィルタfk_nにより照らされる検出器が飽和するまで、照度及び/又は露光時間を増加させる。
○設定ファイルにおける(例えば、予め生成された参照テーブル(へのアクセス)を介した)品質メトリックQk_n,newの仕様に従って露光条件を調整する。
ただし、Aは、関係するフィルタによりカバーされる瞳孔の領域であり、Tは、積分/露光時間である。この場合、露光指数の対数の性質のため、いくつかの計算は簡略化される。他の変形では、前述の手法が使用されるが、初期のキャリブレーション段階は存在しない。
110 フィルタモジュール
111 フィルタ
115 瞳孔面
117 瞳孔
120 マイクロレンズアレイ
121 マイクロレンズ
125 像平面
130 検出アレイ
131 検出器
133 サブアレイ
135 共役平面
140 アクチュエータ
142 コントローラ
150 物体
160 視像
170 画像
180 デジタル処理ユニット
190 光源
Claims (20)
- 調整可能なマルチモード光照射野撮像システムであって、
物体の視像を形成する光学モジュールであり、撮像光学素子、瞳孔面及び像平面により特徴付けられる光学モジュールと、
前記瞳孔面の近くに配置されるフィルタアレイであり、前記光学モジュールに対して移動可能であるフィルタアレイと、
前記像平面の近くに配置されるマイクロ撮像素子のアレイと、
前記マイクロ撮像素子が前記フィルタアレイを検出アレイ上に映すように配置される検出アレイであり、露光条件に従って前記物体のマルチモード画像を取得する検出アレイと、
前記フィルタアレイの位置に応じて前記露光条件を調整するコントローラと
を有する光照射野撮像システム。 - 前記フィルタアレイは、前記瞳孔面に存在する方向に沿って移動可能である、請求項1に記載の光照射野撮像システム。
- 前記コントローラは、前記フィルタアレイの位置に応じて前記露光条件を調整し、
前記フィルタアレイの異なる位置において、前記フィルタアレイの同じフィルタが瞳孔を占有するが、前記瞳孔の異なる部分を占有する、請求項2に記載の光照射野撮像システム。 - 前記コントローラは、前記物体を照らす光源の強度を調整する、請求項1に記載の光照射野撮像システム。
- 前記コントローラは、前記光学モジュールの光通過量を調整する、請求項1に記載の光照射野撮像システム。
- 前記コントローラは、中性フィルタの減衰を調整する、請求項1に記載の光照射野撮像システム。
- 前記コントローラは、前記検出アレイの露光/積分時間を調整する、請求項1に記載の光照射野撮像システム。
- 前記コントローラは、前記マルチモード画像の画像品質メトリックに応じて前記露光条件を調整する、請求項1に記載の光照射野撮像システム。
- 前記画像品質メトリックは、信号対雑音比である、請求項8に記載の光照射野撮像システム。
- 前記画像品質メトリックは、信号エネルギーである、請求項8に記載の光照射野撮像システム。
- 前記画像品質メトリックは、露光指数である、請求項8に記載の光照射野撮像システム。
- 前記コントローラは、前記露光条件への調整を判定するために、参照テーブルにアクセスする、請求項1に記載の光照射野撮像システム。
- 前記フィルタアレイは、異なる波長応答を備えたフィルタを含む、請求項1に記載の光照射野撮像システム。
- 前記フィルタアレイは、マルチスペクトル撮像を実施する、請求項1に記載の光照射野撮像システム。
- 前記マイクロ撮像素子のアレイは、マイクロレンズアレイを含む、請求項1に記載の光照射野撮像システム。
- 前記光学モジュールは、テレセントリックである、請求項1に記載の光照射野撮像システム。
- 前記瞳孔面は、前記検出アレイに対して少なくとも10:1の倍率を有する、請求項1に記載の光照射野撮像システム。
- プレノプティック撮像システムの瞳孔面に配置されたフィルタアレイを有するプレノプティック撮像システムを調整する方法であって、
前記プレノプティック撮像システムに対する前記フィルタアレイの動きに応じて、前記プレノプティック撮像システムの露光条件を調整するステップと、
前記露光条件で、前記フィルタアレイの位置に基づいて物体のマルチモード画像を取得するステップと、
を有する方法。 - 前記フィルタアレイの前記動きで、前記フィルタアレイの同じフィルタが瞳孔を占有するが、前記フィルタが瞳孔の異なる部分を専有する、請求項18に記載の方法。
- 前記露光条件を調整するステップは、前記物体を照らす光源の強度を調整することを有する、請求項18に記載の方法。
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US13/735,297 US9219866B2 (en) | 2013-01-07 | 2013-01-07 | Dynamic adjustment of multimode lightfield imaging system using exposure condition and filter position |
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US9219866B2 (en) | 2015-12-22 |
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US20140192255A1 (en) | 2014-07-10 |
CN103913807B (zh) | 2016-09-28 |
CN103913807A (zh) | 2014-07-09 |
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