JP5689681B2 - 非接触プローブ - Google Patents
非接触プローブ Download PDFInfo
- Publication number
- JP5689681B2 JP5689681B2 JP2010521467A JP2010521467A JP5689681B2 JP 5689681 B2 JP5689681 B2 JP 5689681B2 JP 2010521467 A JP2010521467 A JP 2010521467A JP 2010521467 A JP2010521467 A JP 2010521467A JP 5689681 B2 JP5689681 B2 JP 5689681B2
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- Prior art keywords
- image
- target object
- images
- imaging device
- probe
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
- G01B11/005—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines
- G01B11/007—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines feeler heads therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
- G01B11/2527—Projection by scanning of the object with phase change by in-plane movement of the patern
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured light
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/55—Depth or shape recovery from multiple images
- G06T7/593—Depth or shape recovery from multiple images from stereo images
-
- 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
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30164—Workpiece; Machine component
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
A=オフセット(つまり、任意の背景光を含む、そのピクセルによって記録された対象物体上に投影された干渉縞パターンの平均強度)、
B=そのピクセルによって記録された光度の振幅変調、
Claims (17)
- 非接触測定装置であって、
測定される対象物体の画像を取り込むための1つの撮像デバイスを備える、座標位置決め装置上に装着するためのプローブと、
a)第1の透視位置から前記撮像デバイスによって得られる対象物体の少なくとも1つの第1の画像および第2の透視位置から前記撮像デバイスと同一の撮像デバイスによって得られる前記対象物体の少なくとも1つの第2の画像を解析して、測定される前記対象物体上の少なくとも1つの共通の写真測量ターゲット特徴を前記対象物体の前記少なくとも1つの第1の画像及び前記少なくとも1つの第2の画像のそれぞれにおいて識別し、各々の画像内の前記対象物体上の前記少なくとも1つの共通の写真測量ターゲット特徴の2次元座標を決定し、前記画像を得た前記撮像デバイスの相対的配置及び方向の情報に基づいて、前記少なくとも1つの共通の写真測量ターゲット特徴の3次元座標を決定し、
b)前記対象物体の前記少なくとも1つの第1の画像及び前記少なくとも1つの第2の画像を得るのに使用される同一の撮像デバイスである、撮像デバイスによって得られる少なくとも1つの画像内に画像化されるような、前記対象物体の表面上の高さの変動によりもたらされた前記対象物体上に投影された構造化された光学的パターンの歪の解析を介して前記対象物体の前記表面の形状に関する凹凸形状データを取得する
ように構成される画像解析装置と
を備えることを特徴とする非接触測定装置。 - 前記プローブは、測定される対象物体の前記表面上に光学的パターンを投影するための少なくとも1つのプロジェクタを備えることを特徴とする請求項1に記載の非接触測定装置。
- 前記画像解析装置は、前記少なくとも1つの第1の画像および少なくとも1つの第2の画像のうちの少なくとも1つの画像の解析を介して前記対象物体の表面に関する凹凸形状データを取得するように構成されることを特徴とする請求項1または2に記載の非接触測定装置。
- 前記画像解析装置は、前記対象物体上の光学的パターンの位置が一組の画像内の画像毎に異なる前記一組の画像を処理して前記凹凸形状データを決定するように構成されることを特徴とする請求項1に記載の非接触測定装置。
- 前記画像解析装置は、前記少なくとも1つの共通の写真測量ターゲット特徴として前記第1および第2の画像のうちのそれぞれの画像内の前記対象物体上に投影された光学的パターン内の不規則性を識別するように構成されることを特徴とする請求項1乃至4のいずれか一項に記載の非接触測定装置。
- 前記画像解析装置は、
前記第1の透視位置から前記プローブによって得られる一組の第1の画像であって、前記対象物体上に投影される光学的パターンの位置が前記一組の画像内の画像毎に異なる、一組の第1の画像と、
前記第2の透視位置から前記プローブによって得られる一組の第2の画像であって、前記対象物体上に投影される光学的パターンの位置が前記一組の画像内の画像毎に異なる、一組の第2の画像とを処理して、
測定される前記対象物体上の少なくとも1つの共通の写真測量ターゲット特徴を識別して、前記画像センサに相対的な前記対象物体上の前記写真測量ターゲット特徴の位置を決定するように構成されることを特徴とする請求項5に記載の非接触測定装置。 - 前記画像解析装置は、前記一組の第1の画像または一組の第2の画像のうちの少なくとも1つの組の画像を処理して凹凸形状データを決定するように構成されることを特徴とする請求項6に記載の非接触測定装置。
- 前記画像解析装置は、前記一組の第1の画像からの第1の位相マップと前記一組の第2の画像からの第2の位相マップとのうちの少なくとも1つを計算するように構成されることを特徴とする請求項7に記載の非接触測定装置。
- 前記画像解析装置は、前記少なくとも1つの第1の位相マップおよび第2の位相マップのうちの少なくとも1つから前記凹凸形状データを決定するように構成されることを特徴とする請求項8に記載の非接触測定装置。
- 前記プロジェクタは、固定された光学的パターンを有することを特徴とする請求項2乃至9のいずれか一項に記載の非接触測定装置。
- 請求項1乃至10のいずれか一項に記載の非接触測定装置内に含まれる前記画像解析装置であることを特徴とする画像解析装置。
- 1つの撮像デバイスを備えるプローブを使用して測定空間内に配置されている対象物体を測定するための非接触法であって、
前記撮像デバイスが第1の透視位置からの前記対象物体の少なくとも1つの画像を得ることと、前記撮像デバイスを第2の透視位置に移動して、前記撮像デバイスが前記第2の透視位置からの前記対象物体の少なくとも1つの画像を得ることと、および前記撮像デバイスと同一の撮像デバイスが光学的パターンが投影される前記対象物体の少なくとも1つの画像を得ることとを含む、前記撮像デバイスが前記対象物体の複数の画像を得るステップと、
前記複数の画像を解析して、
a)測定される前記対象物体上の少なくとも1つの共通の写真測量ターゲット特徴を前記対象物体の前記少なくとも1つの第1の画像及び前記少なくとも1つの第2の画像のそれぞれにおいて識別し、各々の画像内の前記対象物体上の前記少なくとも1つの共通の写真測量ターゲット特徴の2次元座標を決定し、前記画像を得た前記撮像デバイスの相対的配置及び方向の情報に基づいて、前記少なくとも1つの共通の写真測量ターゲット特徴の3次元座標を決定するステップと、
b)前記画像内に画像化されるような、前記光学的パターンが投影された前記対象物体の表面上の高さの変動によりもたらされた前記光学的パターンの歪の解析を介して前記対象物体の前記表面の形状に関する凹凸形状データを取得するステップと
を含むことを特徴とする方法。 - 第1の透視位置からの前記対象物体の少なくとも1つの画像および第2の透視位置からの前記対象物体の少なくとも1つの画像のうちの少なくとも1つの画像は、光学的パターンが投影される前記対象物体の前記少なくとも1つの画像を含むことを特徴とする請求項12に記載の方法。
- 前記第1の透視位置と前記第2の透視位置との間で前記対象物体および前記プローブを相対的に移動するステップを含むことを特徴とする請求項12または13に記載の方法。
- 前記プローブは、光学的パターンを投影するためのプロジェクタを備えることを特徴とする請求項12乃至14のいずれか一項に記載の方法。
- コントローラによって実行されたときに、請求項12乃至15のいずれか一項に記載の方法に従って前記コントローラに少なくとも1つの撮像デバイスおよび画像解析装置を備えるプローブを制御させる命令を含むことを特徴とするコンピュータプログラムコード。
- 請求項16に記載のコンピュータプログラムコードを格納することを特徴とするコンピュータ可読媒体。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0716088.0A GB0716088D0 (en) | 2007-08-17 | 2007-08-17 | Non-contact measurement apparatus and method |
GB0716080.7 | 2007-08-17 | ||
GB0716088.0 | 2007-08-17 | ||
GBGB0716080.7A GB0716080D0 (en) | 2007-08-17 | 2007-08-17 | Non-contact measurement apparatus and method |
GBGB0716109.4A GB0716109D0 (en) | 2007-08-17 | 2007-08-17 | Non-contact measurement apparatus and method |
GB0716109.4 | 2007-08-17 | ||
PCT/GB2008/002760 WO2009024758A1 (en) | 2007-08-17 | 2008-08-15 | Non-contact probe |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010537183A JP2010537183A (ja) | 2010-12-02 |
JP5689681B2 true JP5689681B2 (ja) | 2015-03-25 |
Family
ID=39876207
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010521467A Expired - Fee Related JP5689681B2 (ja) | 2007-08-17 | 2008-08-15 | 非接触プローブ |
JP2010521465A Expired - Fee Related JP5943547B2 (ja) | 2007-08-17 | 2008-08-15 | 非接触測定を行う装置および方法 |
JP2010521466A Expired - Fee Related JP5485889B2 (ja) | 2007-08-17 | 2008-08-15 | 位相解析測定を行う装置および方法 |
JP2014238225A Pending JP2015057612A (ja) | 2007-08-17 | 2014-11-25 | 非接触測定を行う装置および方法 |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
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JP2010521465A Expired - Fee Related JP5943547B2 (ja) | 2007-08-17 | 2008-08-15 | 非接触測定を行う装置および方法 |
JP2010521466A Expired - Fee Related JP5485889B2 (ja) | 2007-08-17 | 2008-08-15 | 位相解析測定を行う装置および方法 |
JP2014238225A Pending JP2015057612A (ja) | 2007-08-17 | 2014-11-25 | 非接触測定を行う装置および方法 |
Country Status (5)
Country | Link |
---|---|
US (4) | US8605983B2 (ja) |
EP (4) | EP2183545B1 (ja) |
JP (4) | JP5689681B2 (ja) |
CN (3) | CN101821579B (ja) |
WO (3) | WO2009024756A1 (ja) |
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CN101821578B (zh) | 2014-03-12 |
US8605983B2 (en) | 2013-12-10 |
US20100135534A1 (en) | 2010-06-03 |
CN101821579A (zh) | 2010-09-01 |
US20100158322A1 (en) | 2010-06-24 |
JP2010537182A (ja) | 2010-12-02 |
US8792707B2 (en) | 2014-07-29 |
EP2183546B1 (en) | 2015-10-21 |
EP2183544B1 (en) | 2015-07-15 |
USRE46012E1 (en) | 2016-05-24 |
JP5943547B2 (ja) | 2016-07-05 |
CN101821579B (zh) | 2013-01-23 |
EP2183544A1 (en) | 2010-05-12 |
US8923603B2 (en) | 2014-12-30 |
CN101828092B (zh) | 2014-03-12 |
JP2010537181A (ja) | 2010-12-02 |
JP2015057612A (ja) | 2015-03-26 |
US20100142798A1 (en) | 2010-06-10 |
JP5485889B2 (ja) | 2014-05-07 |
EP2183545A1 (en) | 2010-05-12 |
CN101821578A (zh) | 2010-09-01 |
EP2977719A1 (en) | 2016-01-27 |
JP2010537183A (ja) | 2010-12-02 |
EP2183545B1 (en) | 2014-12-17 |
EP2183546A1 (en) | 2010-05-12 |
WO2009024757A1 (en) | 2009-02-26 |
CN101828092A (zh) | 2010-09-08 |
WO2009024758A1 (en) | 2009-02-26 |
WO2009024756A1 (en) | 2009-02-26 |
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