JP5829667B2 - カラー内視鏡検査のための装置 - Google Patents
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- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0075—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/044—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances for absorption imaging
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- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0084—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- A—HUMAN NECESSITIES
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Description
本出願は、2008年7月14日出願の米国特許出願第61/080,534号と関連し、その出願の優先権を主張するものであり、かつその米国出願のすべての開示は引用することにより本明細書の一部である。
例えば、図8Aは、赤光800,緑光810,および青光815を運ぶ、3つのシングルまたはマルチモードの光ファイバを例示的に用いた、例示的な実施態様を叙述している。ファイバは、横断方向にオフセットの状態で構成されうる。光は、ファイバ800、810および/または815のいずれかによって検出されうるか、または、光はさらに、プローブ805、806内に存在できるシングルモードまたはマルチモードの他のファイバによって検出することもできる。図8Bは、赤の導波性領域820、緑の導波性領域825および青の導波性領域830を含む単一のファイバを含む他の例示的な実施態様を示している。光は、ファイバの、他のクラッドまたは導波性領域であると考えられる、他の導波性領域835から集められうる。
一つの例示的な実施において、ラインスキャンカメラが、例えば2次元10ビット単色像(例えば、約2048×500ピクセル/像)を作ることができる。暗電流雑音レベルまたはそれ以下のピクセル強度を、最初にゼロに設定できる。次いで、原画像を、赤、緑および青色を表す、3つの単色像(500×500ピクセル/像)に分割できる。各スペクトルコード化ラインは、光源および光学構成要素の光スループット変化のための不均一性を補償され、そして以下の処理によってガンマ補償されることができる。色C(Cは、赤、緑または青でありうる)のための分割されたイメージのスペクトルコード化されたライン上のi’番のピクセルにおける10ビットのグレースケール強度Iは、以下の式により、8ビットグレースケール値pへと変換できる。
p(i,C)=pw[I(i,C)/Iw(i,C)]1/2.2
ここで、pwは、ホワイトの参照カード(例えば、Gretag Macbeth(登録商標) Color Checker(登録商標) White balanceカード、X−Rite社、米国ミシガン州;OD=0.05)のための参照8ビットグレースケール値であり、Iwは、ホワイトの参照カードのために測定された10ビットグレースケール強度である。参照スペクトルIwは、ホワイトの参照カードを前もってイメージングすることにより得ることができ、そしてpwは、製造業者から提供された参照値に合わせて243に設定できる。次いで、3つの加工された8ビットグレースケールイメージは、組み合わされ、赤、緑および青のチャンネルによって併合することにより、24ビットのカラーイメージを形成する。
Claims (13)
- 構造物の情報を取得するための装置であって、
互いに少なくとも部分的に異なる波長をもつ少なくとも2つの第一の電磁放射を受光するように構成された分散用の第一の構成と、ここで、前記少なくとも2つの第一の電磁放射は、前記構造物の横断方向の位置上で衝突し、且つ少なくとも部分的に重なる、特定の放射と関連しており、前記分散用の第一の構成は、受光した前記第一の電磁放射に基づいて第二の電磁放射のそれぞれを生成するように構成されている、
前記第二の電磁放射を受光するように構成された、少なくとも2つの導波路を含む第二の構成と、を含み、ここで、前記少なくも2つの導波路の各々は、その波長に応じた前記第二の電磁放射のそれぞれの、異なる一つの受光を容易にするために、分散用の前記第一の構成に関連して、構成または空間的に配置されている、装置。 - 前記導波路の少なくとも一つは、(i)シングルモードファイバ、(ii)マルチモードファイバ、(iii)マルチクラッドファイバ、または(iv)ファイバ束内のファイバの少なくとも一つである、請求項1に記載の装置。
- 前記構造物に前記特定の放射を透過するように構成された第四の構成、ここで、前記第四の構成は、前記特定の放射を提供する特定の導波路を含む、をさらに含む、請求項1に記載の装置。
- 少なくとも一つの前記特定の導波路は、少なくとも一つの(i)シングルモードファイバ、(ii)マルチモードファイバ、(iii)マルチクラッドファイバ、または(iv)ファイバ束内のファイバである、請求項3に記載の装置。
- 前記第二の電磁放射に応じて、前記構造物の少なくとも一つの部分の少なくとも一つのイメージを生成するように構成された第五の構成をさらに含む、請求項1に記載の装置。
- 前記第五の構成は、電荷結合素子(CCD)、直線配列の検出器、または単一の検出器の少なくとも一つを含む、請求項5に記載の装置。
- 前記第五の構成は、少なくとも一つの分散用の構造を含む、請求項5に記載の装置。
- 前記第五の構成は、前記構造物の少なくとも一つの部分の少なくとも一つのカラーイメージを生成するために、第二の電磁放射と関連したデータを処理するように、さらに構成されている、請求項5に記載の装置。
- 前記第五の構成は、前記構造物と関連したイメージ情報を取得し、そして該イメージ情報および前記第二の電磁放射に基づいて、前記少なくとも一つのイメージを生成する、請求項5に記載の装置。
- 前記構造物は、均一の反射特性を持っている、請求項9に記載の装置。
- 前記少なくとも一つのイメージは、色情報を含む、請求項9に記載の装置。
- 前記第五の構成は、(i)第二の電磁放射に基づいて、前記構造物の前記少なくとも一つの部分のデータを生成するように、そして(ii)前記少なくとも一つのイメージを生成するために、該データにガンマ補償処理を行うように構成されている、請求項5に記載の装置。
- 前記第五の構成は、第二の電磁放射に基づいて、前記構造物の少なくとも一つの部分のデータを生成するために、一つのみの電荷結合素子(CCD)を含み、ここで、前記第五の構成は、該データを、少なくとも2つのさらなるデータ、該さらなるデータのそれぞれは、前記構造物の前記少なくとも一つの部分と関連した異なった色に対応している、に分割するように、さらに構成されている、請求項5に記載の装置。
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US8053408P | 2008-07-14 | 2008-07-14 | |
US61/080,534 | 2008-07-14 |
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JP5829667B2 true JP5829667B2 (ja) | 2015-12-09 |
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JP2013246439A Active JP5829667B2 (ja) | 2008-07-14 | 2013-11-28 | カラー内視鏡検査のための装置 |
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US (2) | US9254089B2 (ja) |
EP (1) | EP2309923B1 (ja) |
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WO (1) | WO2010009136A2 (ja) |
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