JP5608718B2 - 走査ビーム装置の較正 - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00096—Optical elements
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00057—Operational features of endoscopes provided with means for testing or calibration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61B1/00163—Optical arrangements
- A61B1/00172—Optical arrangements with means for scanning
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
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- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/144—Image acquisition using a slot moved over the image; using discrete sensing elements at predetermined points; using automatic curve following means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10068—Endoscopic image
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Description
このような位置の違いを考慮しなければ、走査ビーム装置を使用して生成される画像に歪みが加わりがちな可能性がある。
102 走査ビーム装置を使用して較正パターンの画像を取得
104 取得した画像を較正パターンの表示と比較
106 比較に基づいて走査ビーム装置を較正
Claims (9)
- 光源と、
前記光源から光を受け取り、走査パターン内の、感光性位置センサでない較正パターン上でビームを走査するための走査光学素子であって、前記ビームを走査するためのアクチュエータを有している前記走査光学素子と、
前記較正パターンから後方散乱される光を前記走査パターン中の異なる時点において検出するための光検出器と、
前記異なる時点の各々において検出された前記後方散乱光を、対応するそれぞれの時点に関する前記ビームの予想される位置で表すことにより、前記較正パターンの画像を生成するための画像生成論理回路と、
前記較正パターンの前記生成画像を前記較正パターンの表示と比較するための比較論理回路と、
前記比較に関連する較正済みの画像位置情報を記憶するためのピクセル位置較正論理回路と、を含むことを特徴とする装置。 - 前記比較論理回路と通信し、前記比較に基づいて前記走査光学素子の1又はそれ以上の駆動パラメータを調整するための駆動信号較正論理回路をさらに含む、
ことを特徴とする請求項1に記載の装置。 - 前記ピクセル位置較正論理回路は、走査パターン内の前記関心のある面上でビーム走査中の複数の異なる時点の各々において検出された後方散乱光を、前記較正済みの画像位置情報内に定められた画像位置で表すことにより、関心のある面の画像を生成するための論理回路を含む、
ことを特徴とする請求項1に記載の装置。 - 内部に前記較正パターンを有するチャンバをさらに含む、
ことを特徴とする請求項1に記載の装置。 - 前記装置は内視鏡を含み、前記走査光学素子は単一の片持ち状の光ファイバを含む、
ことを特徴とする請求項1に記載の装置。 - 走査光学素子及び該走査光学素子を駆動するためのアクチュエータを備える走査ビーム装置を使用して、感光性位置センサでない較正パターンの画像を取得するステップであって、前記画像は、操作パターン内の較正パターン上でビームを走査することにより得られ、且つ前記画像は、前記走査パターン中の異なる時点で検出された光であり、且つ前記較正パターンから後方散乱された光から取得される、前記取得するステップと、
前記取得した前記較正パターンの画像を前記較正パターンの表示と比較するステップと、
前記取得した前記較正パターンの画像を前記較正パターンの表示との比較に基づいて前記走査ビーム装置を較正するステップと、
前記比較に関連する較正済みの画像位置情報を保存するステップと、
を含むことを特徴とする方法。 - 前記走査ビーム装置を較正するステップは、前記比較に基づいて前記走査ビーム装置の走査光学素子の1又はそれ以上の駆動パラメータを調整するステップ、及び、前記画像を取得する前に、前記走査ビーム装置の走査ビームプローブを走査ビーム装置の較正チャンバのポートに結合するステップを含み、前記較正チャンバは内部に前記較正パターンを有する、
ことを特徴とする請求項6に記載の方法。 - 前記較正済みの画像位置情報は較正済みの宛先ピクセル位置を含み、該宛先ピクセル位置は、前記取得した画像と前記表示との間の差異を考慮するように調整された予想されるピクセル位置である、
ことを特徴とする請求項6に記載の方法。 - 走査光学素子及び該走査光学素子を駆動するためのアクチュエータを備える走査ビーム装置を使用して、感光性位置センサでない較正パターンの画像を取得するステップであって、前記画像は、操作パターン内の較正パターン上でビームを走査することにより得られ、且つ前記画像は、前記走査パターン中の異なる時点で検出された光であり、且つ前記較正パターンから後方散乱された光から取得される、前記取得するステップと、
前記取得した前記較正パターンの画像を前記較正パターンの表示と比較するステップと、
前記取得した前記較正パターンの画像を前記較正パターンの表示との比較に基づいて前記走査ビーム装置を較正するステップと、
を含み、
前記走査ビーム装置を較正するステップは、
前記比較に基づいて前記走査ビーム装置の走査光学素子の1又はそれ以上の駆動パラメータを調整するステップ、
前記走査ビーム装置を使用して同じ較正パターンの第2の画像を取得するステップ、
前記取得した第2の画像を、該第2の画像を取得するために使用した前記較正パターンの表示と比較するステップ、及び
前記比較に関連する較正済みの画像位置情報を保存するステップと、
を含むことを特徴とする方法。
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US11/652,411 US8305432B2 (en) | 2007-01-10 | 2007-01-10 | Scanning beam device calibration |
US11/652,411 | 2007-01-10 |
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JP2010515947A (ja) | 2010-05-13 |
EP3415075A1 (en) | 2018-12-19 |
JP2013065020A (ja) | 2013-04-11 |
US9639934B2 (en) | 2017-05-02 |
US8305432B2 (en) | 2012-11-06 |
EP2099353A1 (en) | 2009-09-16 |
WO2008085186A1 (en) | 2008-07-17 |
US20130003131A1 (en) | 2013-01-03 |
EP2099353B1 (en) | 2018-09-05 |
US20080165360A1 (en) | 2008-07-10 |
JP5513897B2 (ja) | 2014-06-04 |
US9066651B2 (en) | 2015-06-30 |
US20150294466A1 (en) | 2015-10-15 |
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