JP6409006B2 - プレノプティックイメージング装置 - Google Patents
プレノプティックイメージング装置 Download PDFInfo
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- JP6409006B2 JP6409006B2 JP2015556538A JP2015556538A JP6409006B2 JP 6409006 B2 JP6409006 B2 JP 6409006B2 JP 2015556538 A JP2015556538 A JP 2015556538A JP 2015556538 A JP2015556538 A JP 2015556538A JP 6409006 B2 JP6409006 B2 JP 6409006B2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0075—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. increasing, the depth of field or depth of focus
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/207—Image signal generators using stereoscopic image cameras using a single 2D image sensor
- H04N13/218—Image signal generators using stereoscopic image cameras using a single 2D image sensor using spatial multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/257—Colour aspects
-
- 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
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/08—Kaleidoscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/207—Image signal generators using stereoscopic image cameras using a single 2D image sensor
- H04N13/214—Image signal generators using stereoscopic image cameras using a single 2D image sensor using spectral multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/001—Constructional or mechanical details
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
- Blocking Light For Cameras (AREA)
- Lenses (AREA)
Description
一般的なプレノプティックイメージアクイジションは、Wetzstein et al.(2011)及びZhou et al.(2011)に記載されている。スナップショットイメージングは、異なるようにフィルタを通された画像を単一露光でキャプチャする。簡単なハードウェア的にパラレルな機構は、いくつかのカメラ群を互いに近づけて配置することであり(例えばWilburn et al.(2005))、それぞれのカメラは、異なるプリフィルタ、又は変更された記録パラメータを有する。それにもかかわらず、もしライトフィールドイメージングが意図されないのであれば、方向以外のほとんどのプレノプティックパラメータ(plenoptic dimensions)がそうであるように、カメラ群の異なる視点は、補償されなければならない。オプティカルフロー(Horn及びSchunck(1981))も適用され得るが、異なる光学的プリフィルタが用いられているときには当てはめられない、明るさ一定という仮定に基づくので、実際には、限られた有用性しかない。
高ダイナミックレンジHDRイメージングは、標準的なイメージングセンサのダイナミックレンジの制限を回避する。露光シーケンスが実際に主に使われる。スナップショットは、画素露光を変化させることで可能となる(Nayar及びMitsunaga 2000)が、このアプローチには前述の短所もある。
したがって本発明の目的は、画像のプレノプティックパラメータのスナップショットイメージングを可能にしつつも、カスタムカメラ設計の必要を避けることである。本発明のさらなる目的は、
DLR、携帯電話又はタブレットのカメラ、産業用カメラ、シネマカメラ、又は顕微鏡のような、任意の既存のイメージング装置に可逆的に組み合わせられ得るが、通常の使用のときには容易に取り外しが可能であり、それによりユーザによってプレノプティックイメージングの広範な採用を可能にする光学要素を設計することである。
この目的は、独立クレームに記載のプレノプティックイメージング装置によって達成される。有利な実施形態は、従属クレームに規定される。
α = tan-1((N/2・lf + αps/2)/lmt)であって、ここでlfは、オリジナルセンサ(よってディフューザー)のサイズであり、Nは、画像コピー群の目標個数であり、αpsは、撮像レンズの開口であり、lmtは、イメージマルチプライヤーの長さである。角度αは、より長いイメージマルチプライヤー、画像コピーの少ない個数、より小さいセンササイズによって低減され得て、撮像系の開口を低減することによって影響を小さなものにできる。
lλ 1 = EXEX *+ EYEY *,lλ 2 = EXEX *- EYEY *,lλ 3 = EXEY *+ EYEX *,lλ 4 = i(EXEY *- EYEX *)
であり、ここでEX及びEYは、電界Eの2つの直交平面波成分であり、*は、複素共役を表す。光学フィルタは、セット{Mi, fi}によって表記され、これらは、標準光学フィルタfi及びミュラー行列Miからなる。プレノプティックパラメータについては、波長はλで、方向はωで、時間はtで表記される。[1 0 0 0]ベクトルによる増倍は、センサによって位置合わせされている放射照度測定を抽出する。クランピング演算{・}0 1は、現実のセンサによって課せられる飽和限界をモデル化する。以下ではフィルタパラメータ(波長、偏光、及び方向)の全てが同時に用いられるわけではない。むしろ、記載されたアプリケーション領域のそれぞれは、一度に1つのパラメータを使用する。
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Claims (7)
- カメラのレンズ及びボディの間に挿入可能な画像化装置であって、前記カメラは画像化センサを含み、前記画像化装置は、
物体又はシーンの複数の光学画像を得るカレイドスコープ又は反射材料でコーティングされたプリズムと、
前記複数の画像の少なくともいくつかを画像化センサに、前記センサの同じ露光の間に画像化する撮像系と、
を備える画像化装置であって、
前記撮像系は、前記光学画像の被写界深度を制御する調整可能な開口を有する
ことを特徴とする画像化装置。 - 外部光学装置の特性に調整する瞳整合系をさらに備える請求項1に記載の画像化装置。
- 請求項1に記載の画像化装置を備える静止画及び/又は動画カメラ。
- 請求項1に記載の画像化装置を備えるカメラアドオン。
- 請求項1に記載の画像化装置、及び対物レンズを備えるシステム。
- デジタル画像又はビデオを受け取ることであって、前記デジタル画像又はビデオは、請求項1に記載の画像化装置を用いて得られた少なくともいくつかの画像又は画像シーケンスを備える、受け取ること、
前記少なくともいくつかの画像又は画像シーケンスに基づいて、デジタル画像又はビデオを再構築すること、及び
前記デジタル画像又はビデオを出力すること
のステップを含むコンピュータによって実行される方法。 - カメラのレンズ及びボディの間に挿入可能な画像化装置であって、前記カメラは画像化センサを含み、前記画像化装置は、
物体又はシーンの複数の光学画像を得るカレイドスコープ又は反射材料でコーティングされたプリズムと、
前記複数の画像の少なくともいくつかを画像化センサに、前記センサの同じ露光の間に画像化する撮像系と、
を備える画像化装置の、
ライトフィールド画像化のための使用。
Applications Claiming Priority (5)
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US201361764084P | 2013-02-13 | 2013-02-13 | |
US61/764,084 | 2013-02-13 | ||
EP13155094.9 | 2013-02-13 | ||
EP13155094 | 2013-02-13 | ||
PCT/EP2014/052747 WO2014124982A1 (en) | 2013-02-13 | 2014-02-12 | Plenoptic imaging device |
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JP2016511980A JP2016511980A (ja) | 2016-04-21 |
JP6409006B2 true JP6409006B2 (ja) | 2018-10-17 |
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US (2) | US9936188B2 (ja) |
EP (1) | EP2957099B1 (ja) |
JP (1) | JP6409006B2 (ja) |
KR (1) | KR101871034B1 (ja) |
CN (1) | CN105210361B (ja) |
WO (1) | WO2014124982A1 (ja) |
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JP2016511980A (ja) | 2016-04-21 |
CN105210361B (zh) | 2019-04-12 |
EP2957099B1 (en) | 2018-08-29 |
KR101871034B1 (ko) | 2018-07-19 |
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