JP2023538384A - 表面欠陥検出システム - Google Patents
表面欠陥検出システム Download PDFInfo
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- JP2023538384A JP2023538384A JP2023512203A JP2023512203A JP2023538384A JP 2023538384 A JP2023538384 A JP 2023538384A JP 2023512203 A JP2023512203 A JP 2023512203A JP 2023512203 A JP2023512203 A JP 2023512203A JP 2023538384 A JP2023538384 A JP 2023538384A
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- 230000007547 defect Effects 0.000 title claims abstract description 59
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- 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
- G06T7/0008—Industrial image inspection checking presence/absence
-
- 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
-
- 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
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
- G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
-
- 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
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- 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
- G06T7/001—Industrial image inspection using an image reference approach
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- G06V10/25—Determination of region of interest [ROI] or a volume of interest [VOI]
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- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8829—Shadow projection or structured background, e.g. for deflectometry
- G01N2021/8832—Structured background, e.g. for transparent objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8861—Determining coordinates of flaws
-
- 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
- G06T2207/30156—Vehicle coating
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
Description
Claims (20)
- 表面欠陥を検出するためのシステムであって、
欠陥をその上に有する表面と、
異なる色又は暗さの領域を有する、前記表面に面するパターンと、
前記表面を照明する光源と、
前記表面からの前記パターンの反射を受け取る撮像装置と、
前記パターンの反射から前記異なる色又は暗さの領域を分離した後に、前記パターンの反射における前記欠陥を識別するプロセッサと、
前記表面上の前記欠陥の位置を表示する出力装置と、
を備えるシステム。 - 前記パターンは、前記パターンにわたって延在する前記異なる色又は暗さの交互の領域を備える、請求項1に記載のシステム。
- 前記プロセッサは、前記パターンの反射を複数の領域に分割し、各領域が、前記パターンの反射にわたって延在し、前記プロセッサは、前記パターンの反射から前記異なる色又は暗さの交互の領域を分離した後に、前記複数の領域のうちの1つにおける欠陥を識別するために、各領域内の部分を互いに比較する、請求項2に記載のシステム。
- 前記複数の領域は、前記交互の領域に対して横断方向に配向され、それによって、前記複数の領域は、前記パターンの反射から前記交互の領域の分離を通して前記交互の領域の任意の残りの部分をスクリーニングして除く、請求項3に記載のシステム。
- 前記プロセッサは、前記パターンの反射を複数の領域に分割し、各領域が、前記パターンの反射にわたって延在し、前記プロセッサは、前記パターンの反射から前記異なる色又は暗さの領域を分離した後に、前記複数の領域のうちの1つにおける欠陥を識別するために、各領域内の部分を互いに比較する、請求項1に記載のシステム。
- 前記欠陥の位置は、前記複数の領域に対応する軸に沿って、前記出力装置によって表示される、請求項5に記載のシステム。
- 前記領域の各々が画素のラインを備え、前記部分が各ライン内の画素を備える、請求項5に記載のシステム。
- 前記プロセッサは、前記パターンの反射を、前記異なる色又は暗さの領域を含む第1の行列と、前記欠陥を含む第2の行列とに分離する、請求項1に記載のシステム。
- 前記第1の行列及び前記第2の行列は、合算されると前記パターンの反射の表現を備える値をそれぞれ定義する、請求項8に記載のシステム。
- 前記第1の行列及び前記第2の行列の前記値は、前記第1の行列及び前記第2の行列における対応する画素の値である、請求項9に記載のシステム。
- 前記プロセッサは、前記第1の行列及び前記第2の行列を最適化する、請求項8に記載のシステム。
- 前記第1の行列は、低ランク行列を備え、前記第2の行列は、疎行列を備える、請求項11に記載のシステム。
- 前記プロセッサは、前記低ランク行列の核型ノルムを最小化する、請求項12に記載のシステム。
- 前記プロセッサは、前記低ランク行列の第1の特性及び前記疎行列の第2の特性を最小化し、前記第1の特性及び前記第2の特性は、互いに異なっている、請求項12に記載のシステム。
- 前記プロセッサは、前記第1の行列の第1の特性及び前記第2の行列の第2の特性を最小化し、前記第1の特性及び前記第2の特性は、互いに異なっている、請求項11に記載のシステム。
- 前記プロセッサは、前記パターンの反射から前記異なる色又は暗さの領域を分離する前に、前記パターンの反射からノイズをフィルタリングする、請求項1に記載のシステム。
- 前記パターン及び前記光源は、ディスプレイ画面から放射される、請求項1に記載のシステム。
- 前記表面は塗装されており、前記欠陥は前記塗装の被覆における異常である、請求項4に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/999,361 | 2020-08-21 | ||
US16/999,361 US11494892B2 (en) | 2020-08-21 | 2020-08-21 | Surface defect detection system |
PCT/IB2021/057685 WO2022038575A1 (en) | 2020-08-21 | 2021-08-20 | Surface defect detection system |
Publications (1)
Publication Number | Publication Date |
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JP2023538384A true JP2023538384A (ja) | 2023-09-07 |
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ID=77519435
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Application Number | Title | Priority Date | Filing Date |
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JP2023512203A Pending JP2023538384A (ja) | 2020-08-21 | 2021-08-20 | 表面欠陥検出システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US11494892B2 (ja) |
EP (1) | EP4200797A1 (ja) |
JP (1) | JP2023538384A (ja) |
CN (1) | CN115917595A (ja) |
WO (1) | WO2022038575A1 (ja) |
Families Citing this family (5)
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US20210264639A1 (en) * | 2018-11-14 | 2021-08-26 | Hewlett-Packard Development Company, L.P. | Determination of defects in light sources integrated with cameras |
US11494892B2 (en) * | 2020-08-21 | 2022-11-08 | Abb Schweiz Ag | Surface defect detection system |
CN114841982B (zh) * | 2022-05-20 | 2024-01-09 | 浙江纵驰环境科技有限公司 | 一种基于图像处理的空调滤芯质量监测方法 |
CN116067671B (zh) * | 2023-02-03 | 2023-07-21 | 北京车讯骏都互联网有限公司 | 一种用于测试车辆漆面质量的方法、系统及介质 |
CN116900412B (zh) * | 2023-09-14 | 2024-01-09 | 山东昌啸商贸有限公司 | 基于视觉处理的钢板等距自动切割调控方法 |
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US11494892B2 (en) * | 2020-08-21 | 2022-11-08 | Abb Schweiz Ag | Surface defect detection system |
-
2020
- 2020-08-21 US US16/999,361 patent/US11494892B2/en active Active
-
2021
- 2021-08-20 WO PCT/IB2021/057685 patent/WO2022038575A1/en unknown
- 2021-08-20 JP JP2023512203A patent/JP2023538384A/ja active Pending
- 2021-08-20 EP EP21762133.3A patent/EP4200797A1/en active Pending
- 2021-08-20 CN CN202180051352.8A patent/CN115917595A/zh active Pending
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US20220058793A1 (en) | 2022-02-24 |
WO2022038575A1 (en) | 2022-02-24 |
EP4200797A1 (en) | 2023-06-28 |
CN115917595A (zh) | 2023-04-04 |
US11494892B2 (en) | 2022-11-08 |
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