DE102007031358B4 - Apparatus for imaging the inner surface of a cylindrical cavity - Google Patents
Apparatus for imaging the inner surface of a cylindrical cavity Download PDFInfo
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- DE102007031358B4 DE102007031358B4 DE102007031358.8A DE102007031358A DE102007031358B4 DE 102007031358 B4 DE102007031358 B4 DE 102007031358B4 DE 102007031358 A DE102007031358 A DE 102007031358A DE 102007031358 B4 DE102007031358 B4 DE 102007031358B4
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- 238000003384 imaging method Methods 0.000 title claims abstract description 5
- 238000011161 development Methods 0.000 claims abstract description 5
- 238000005286 illumination Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000011179 visual inspection Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B37/005—Photographing internal surfaces, e.g. of pipe
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B37/04—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with cameras or projectors providing touching or overlapping fields of view
-
- 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
- G01N2021/8887—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 based on image processing techniques
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
- G01N2021/9542—Inspecting the inner surface of hollow bodies, e.g. bores using a probe
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
- G01N2021/9542—Inspecting the inner surface of hollow bodies, e.g. bores using a probe
- G01N2021/9544—Inspecting the inner surface of hollow bodies, e.g. bores using a probe with emitter and receiver on the probe
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Vorrichtung zur Abbildung der Innenfläche (4) eines zylindrischen Hohlraums in einem Werkstück (8),mit einer Optik (2) mit Rundumblick von 360°,mit Mitteln zum Vorschub der Optik (2) senkrecht zur Ebene des Rundumblicks,mit einen digitalen Bildaufnehmer (10) mit einer ebenen Bildaufnahmefläche, auf der das von der Optik (2) aufgenommene Rundumbild abgebildet wirdund mit Mitteln, die aus den digitalen Ausgangssignalen des digitalen Bildaufnehmers (10) ein kartesisches Bild erzeugen, das eine Abwicklung (40) der Innenfläche des Hohlraums ist,wobei der digitale Bildaufnehmer (10) eine matrixförmige Bildpunktanordnung sowie ein digitales Auslesefenster (22) aufweist, das so programmiert ist, dass nur Ausgangssignale entsprechend eines ringförmigen Bandes auf der Innenfläche (4) des Hohlraums in einer Ebene im Wesentlichen quer zur Richtung des schrittweisen Vorschubs der Optik erzeugt werden,wobei diese Ausgangssignale den Bildinhalt der Zeilen des kartesischen Bildes bilden undwobei Mittel vorhanden sind, die den Bildinhalt der Zeilen des kartesischen Bildes analysieren und die Ausgangssignale nur bei Überschreiten eines einstellbaren Grenzwertes zu den Mitteln zur Erzeugung eines kartesischen Bildes durchlassen.Device for imaging the inner surface (4) of a cylindrical cavity in a workpiece (8), with an optic (2) with an all-round view of 360°, with means for advancing the optics (2) perpendicular to the level of the all-round view, with a digital image recorder ( 10) with a flat image recording surface on which the all-round image recorded by the optics (2) is imaged and with means that generate a Cartesian image from the digital output signals of the digital image recorder (10), which is a development (40) of the inner surface of the cavity ,wherein the digital imager (10) has a matrix-shaped pixel arrangement and a digital readout window (22) which is programmed in such a way that only output signals corresponding to an annular band on the inner surface (4) of the cavity in a plane substantially transverse to the direction of the incremental Feed of the optics are generated, these output signals forming the image content of the lines of the Cartesian image and where center l are present, which analyze the image content of the lines of the Cartesian image and only pass the output signals to the means for generating a Cartesian image when an adjustable limit value is exceeded.
Description
Die Erfindung betrifft eine Vorrichtung zur Abbildung der Innenfläche eines vorzugsweise zylindrischen Hohlraums in einem Werkstück, mit einer Optik mit Rundumblick von vorzugsweise 360°, mit Mitteln zum schrittweisen Vorschub der Optik senkrecht zur Ebene des Rundumblicks, mit einer digitalen Kamera mit einer ebenen Bildaufnahmefläche, auf der das von der Optik aufgenommene Rundumbild abgebildet wird, und mit Mitteln, die aus den digitalen Ausgangssignalen der Kamera ein kartesisches Bild erzeugen, das eine Abwicklung der Innenfläche des Hohlraums ist.The invention relates to a device for imaging the inner surface of a preferably cylindrical cavity in a workpiece, with optics with an all-round view of preferably 360°, with means for incrementally advancing the optics perpendicular to the level of the all-round view, with a digital camera with a flat image recording surface which the all-round image recorded by the optics is imaged, and with means which generate from the digital output signals of the camera a Cartesian image which is a development of the inner surface of the cavity.
Eine derartige Vorrichtung ist durch
Die Abbildung einer Innenfläche eines zylindrischen Hohlraums in einem Werkstück dient dem Ziel, die Oberfläche auf Fehler zu untersuchen und fehlerhafte Bauteile auszuscheiden. Dies ist besonders in der Automobilindustrie von Bedeutung, wo funktionsrelevante Bohrungen seriengefertigt werden, beispielsweise bei Bremszylindern, Bremssätteln, Pleueln, Kolben, Motorzylindern, Zylinderlaufbuchsen oder Lagerbuchsen. Eine solche Prüfung erfolgte bisher durch visuelle Inspektion und natürlich behaftet mit den Einschränkungen der Sichtkontrolle. Anzustreben ist jedoch eine Stück-für-Stück-Prüfung bei gleichzeitiger Automatisierung des Prüfvorganges. Eine solche Prüfung ist mit der genannten bekannten Vorrichtung nicht möglich.The purpose of imaging an inner surface of a cylindrical cavity in a workpiece is to examine the surface for defects and to reject defective components. This is particularly important in the automotive industry, where functionally relevant bores are mass-produced, for example in brake cylinders, brake calipers, connecting rods, pistons, engine cylinders, cylinder liners or bearing bushes. Up to now, such a check has been carried out by visual inspection and of course subject to the limitations of visual inspection. However, a piece-by-piece test with simultaneous automation of the test process should be aimed for. Such a test is not possible with the known device mentioned.
Durch
Durch
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der genannten Art zu schaffen, bei der die Zeit für die Prüfung so gering ist, dass eine Stück-für-Stück-Prüfung, insbesondere eine automatische Prüfung erfolgen kann.The invention is therefore based on the object of creating a device of the type mentioned, in which the time for the test is so short that a piece-by-piece test, in particular an automatic test, can be carried out.
Die der Erfindung zugrundeliegende Aufgabe wird durch die im Anspruch 1 angegebene Lehre gelöst.The object on which the invention is based is achieved by the teaching specified in claim 1.
Der Grundgedanke der Erfindung besteht darin, dass der digitale Bildaufnehmer, der das von der Optik aufgenommene Rundumbild aufnimmt, nur Ausgangssignale entsprechend einer ringförmigen Linie auf der Innenfläche des Hohlraumes erzeugt, derart, dass das Ausgangssignal nur Informationen über diese ringförmige Linie enthält. Dadurch ergibt sich eine beträchtliche Reduktion des Informationsinhalts. Diese reduzierten Ausgangssignale bilden dann den Bildinhalt der Zeilen des kartesischen Bildes, das im Ergebnis erzeugt wird. Durch den schrittweisen Vorschub der Optik werden jeweils neue Zeilen aneinandergereiht, so dass das Gesamtbild entsteht.The basic idea of the invention is that the digital image recorder, which records the all-round image recorded by the optics, only generates output signals corresponding to a ring-shaped line on the inner surface of the cavity, such that the output signal only contains information about this ring-shaped line. This results in a considerable reduction in the information content. These reduced output signals then form the image content of the lines of the Cartesian image that is produced as a result. The step-by-step advancement of the optics causes new lines to be lined up so that the overall picture is created.
Die Erfindung macht sich die Tatsache zunutze, dass es inzwischen digitale Hochgeschwindigkeitsbildaufnehmer gibt, die in der Lage sind, 1.000 Bilder pro Sekunde aufzunehmen und entsprechende Bildsignale zu erzeugen. Dabei sind beliebige Auslesefenster programmierbar. Die Erfindung sieht nun vor, dass das Auslesefenster so programmiert ist, dass nur Ausgangssignale entsprechend einem ringförmigen Band auf der Innenfläche des Hohlraumes im wesentlichen quer zur Richtung des schrittweisen Vorschubs der Optik erzeugt werden, so dass eine Beschränkung der zu verarbeitenden Informationen bereits erfolgt mit der Folge, dass die nachfolgenden Verarbeitungseinheiten wesentlich schneller arbeiten können und somit in der Praxis eine Stück-für-Stück-Prüfung erfolgen kann.The invention makes use of the fact that there are now high-speed digital image recorders that are able to record 1,000 images per second and generate corresponding image signals. Any readout window can be programmed. The invention now provides that the readout window is programmed in such a way that only output signals corresponding to a ring-shaped band on the inner surface of the cavity are generated essentially transversely to the direction of the stepwise advance of the optics, so that the information to be processed is already limited with the As a result, the subsequent processing units can work much faster and a piece-by-piece check can therefore be carried out in practice.
Um diese Stück-für-Stück-Prüfung technisch zu ermöglichen, sind erfindungsgemäß Mittel vorgesehen, die den Bildinhalt der Zeilen des kartesischen Bildes analysieren und die Ausgangssignale nur bei Überschreiten eines einstellbaren Grenzwertes zu den Mitteln zur Erzeugung eines kartesischen Bildes durchlassen. In optischer Hinsicht werden somit nur die Oberflächenfehler dargestellt, wobei durch die Einstellung des Grenzwertes die Oberflächenfehler bestimmt werden können, die zur Darstellung gelangen sollen. Natürlich ist es dann auch ohne weiteres möglich, diese Fehlersignale auszuwerten und die fehlerhaften Werkstücke entsprechend auszuscheiden oder zu markieren.In order to make this piece-by-piece check technically possible, means are provided according to the invention which analyze the image content of the lines of the Cartesian image and only allow the output signals to pass to the means for generating a Cartesian image if an adjustable limit value is exceeded. From an optical point of view, only the surface defects are displayed, whereby the surface defects that are to be displayed can be determined by setting the limit value. Of course, it is then also easily possible to evaluate these error signals and to separate out or mark the defective workpieces accordingly.
Gemäß der Erfindung ist im Bereich der Optik eine Beleuchtungsquelle zur Rundumbeleuchtung fest angeordnet. Dadurch erübrigt sich die Beleuchtung über eine von der Optik entfernt angeordnete Lichtquelle, deren Licht beispielsweise durch einen Lichtleiter geleitet wird. Vorzugsweise ist die Beleuchtungsquelle eine LED-Lichtquelle. Zweckmäßigerweise ist sie auch eine Laserdiode.According to the invention, an illumination source for all-round illumination is fixed in the area of the optics. This eliminates the need for illumination via a light source which is arranged at a distance from the optics and whose light is guided, for example, through a light guide. Preferably, the illumination source is an LED light source. Conveniently, it is also a laser diode.
Anhand der Zeichnung soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden.
-
1 zeigt eine Vorrichtung gemäß der Erfindung zusammen mit einem Werkstück, -
2 ist eine vergrößerte, komprimierte Darstellung gemäß1 , -
3 verdeutlicht schematisch die Aufnahmefläche eines Bildaufnehmers, -
4 zeigt schematisch die Speicherung eines von dem Bildaufnehmer aufgenommenen Kreisrings, -
5 verdeutlicht die Bildung eines kartesischen Bildes und -
6 zeigt schematisch die Abwicklung der Innenfläche der Bohrung.
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1 shows a device according to the invention together with a workpiece, -
2 is an enlarged, compressed representation according to1 , -
3 schematically illustrates the recording surface of an image recorder, -
4 shows schematically the storage of a circular ring recorded by the image recorder, -
5 clarifies the formation of a Cartesian image and -
6 shows schematically the development of the inner surface of the bore.
Die Vorrichtung gemäß
Anhand der Abwicklung 40 gemäß
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007031358.8A DE102007031358B4 (en) | 2007-07-05 | 2007-07-05 | Apparatus for imaging the inner surface of a cylindrical cavity |
EP08784598A EP2165186A1 (en) | 2007-07-05 | 2008-07-02 | Apparatus for imaging the inner surface of a cavity which is preferably cylindrical |
PCT/EP2008/005393 WO2009003692A1 (en) | 2007-07-05 | 2008-07-02 | Apparatus for imaging the inner surface of a cavity which is preferably cylindrical |
DE202008008725U DE202008008725U1 (en) | 2007-07-05 | 2008-07-02 | Device for imaging the inner surface of a preferably cylindrical cavity in a workpiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007031358.8A DE102007031358B4 (en) | 2007-07-05 | 2007-07-05 | Apparatus for imaging the inner surface of a cylindrical cavity |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102007031358A1 DE102007031358A1 (en) | 2009-03-26 |
DE102007031358B4 true DE102007031358B4 (en) | 2023-03-16 |
Family
ID=39717529
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007031358.8A Active DE102007031358B4 (en) | 2007-07-05 | 2007-07-05 | Apparatus for imaging the inner surface of a cylindrical cavity |
DE202008008725U Expired - Lifetime DE202008008725U1 (en) | 2007-07-05 | 2008-07-02 | Device for imaging the inner surface of a preferably cylindrical cavity in a workpiece |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202008008725U Expired - Lifetime DE202008008725U1 (en) | 2007-07-05 | 2008-07-02 | Device for imaging the inner surface of a preferably cylindrical cavity in a workpiece |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2165186A1 (en) |
DE (2) | DE102007031358B4 (en) |
WO (1) | WO2009003692A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009019459B4 (en) | 2009-05-04 | 2012-02-02 | Hommel-Etamic Gmbh | Device for imaging the inner surface of a cavity in a workpiece |
DE202009006425U1 (en) | 2009-05-05 | 2009-07-23 | Hommel-Etamic Gmbh | Device for imaging the inner surface of a preferably cylindrical cavity in a workpiece |
DE112010004464B4 (en) * | 2009-11-18 | 2018-11-22 | Honda Motor Co., Ltd. | Surface testing device and surface testing method |
DE102010035147B4 (en) | 2010-08-23 | 2016-07-28 | Jenoptik Industrial Metrology Germany Gmbh | measuring device |
DE102011013089A1 (en) | 2011-03-04 | 2012-09-06 | Hommel-Etamic Gmbh | Crankshaft test methods |
DE102011079067A1 (en) * | 2011-07-13 | 2013-01-17 | Robert Bosch Gmbh | Method for equalizing image of high-speed camera of endoscopic inspection device for e.g. inspecting hole-like openings in intestine, involves determining equalization of image in reference to scan-axis of testing body |
DE102011079068A1 (en) * | 2011-07-13 | 2013-01-17 | Robert Bosch Gmbh | Method for focus adaptation with image capturing system i.e. high speed charge coupled device camera, of endoscope inspection device, involves determining focal region before or during recording about detection of component structure |
DE102011117618B4 (en) | 2011-11-04 | 2019-07-18 | Jenoptik Industrial Metrology Germany Gmbh | Device for imaging the inner surface of a cavity in a workpiece |
DE102012018580B4 (en) | 2012-09-20 | 2015-06-11 | Jenoptik Industrial Metrology Germany Gmbh | Measuring device and measuring method for in-process measurement on test specimens during a machining operation on a processing machine, in particular a grinding machine |
DE102014108431A1 (en) * | 2014-06-16 | 2015-12-17 | Bayerische Motoren Werke Aktiengesellschaft | Method and measuring device for checking a cylinder bore |
DE102014118753A1 (en) * | 2014-10-01 | 2016-04-07 | Jenoptik Industrial Metrology Germany Gmbh | Tester |
DE102015209455A1 (en) | 2015-05-22 | 2016-11-24 | Sac Sirius Advanced Cybernetics Gmbh | Apparatus and method for the optical detection of inner walls |
DE202015009460U1 (en) | 2015-08-12 | 2017-10-12 | Jenoptik Industrial Metrology Germany Gmbh | Hole inspection apparatus |
DE102016113400B4 (en) | 2015-08-19 | 2023-11-30 | Jenoptik Industrial Metrology Germany Gmbh | Bore inspection device and bore inspection method |
DE102017111819B4 (en) | 2017-05-30 | 2021-07-22 | Jenoptik Industrial Metrology Germany Gmbh | Bore inspection device |
SE541623C2 (en) * | 2017-10-11 | 2019-11-12 | Chris Marine Ab | Liner imaging device and a method for establishing an image of an inner wall of a liner |
DE102019106851B4 (en) | 2019-03-18 | 2023-06-07 | Jenoptik Industrial Metrology Germany Gmbh | Calibration procedures and calibration aids |
DE102021105629A1 (en) | 2020-03-12 | 2021-09-16 | Jenoptik Industrial Metrology Germany Gmbh | Bore inspection device |
WO2023281359A1 (en) * | 2021-07-07 | 2023-01-12 | Coursebricks | System and method for automated inspection of components using image augmentation and computer vision models |
DE102022102155B4 (en) | 2022-01-31 | 2023-12-28 | Jenoptik Industrial Metrology Germany Gmbh | Calibration aid and method for producing the calibration aid |
DE102022125115A1 (en) | 2022-09-29 | 2024-04-04 | Jenoptik Industrial Metrology Germany Gmbh | Optical measuring method |
DE102022131398A1 (en) | 2022-11-28 | 2024-05-29 | Jenoptik Industrial Metrology Germany Gmbh | Borehole inspection device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20040249247A1 (en) | 2003-05-01 | 2004-12-09 | Iddan Gavriel J. | Endoscope with panoramic view |
US20060034514A1 (en) | 2004-06-30 | 2006-02-16 | Eli Horn | Device, system, and method for reducing image data captured in-vivo |
DE19806261B4 (en) | 1997-02-14 | 2006-05-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for the controlled representation of cavity surfaces |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT408385B (en) | 1999-04-30 | 2001-11-26 | Festo Ges M B H | METHOD AND DEVICE FOR DETECTING AN IMAGE OF AN ESSENTIAL CYLINDRICAL SURFACE |
AU2001269717A1 (en) | 2000-05-30 | 2001-12-11 | Oyo Corp. U.S.A. | Apparatus and method for detecting pipeline defects |
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2007
- 2007-07-05 DE DE102007031358.8A patent/DE102007031358B4/en active Active
-
2008
- 2008-07-02 DE DE202008008725U patent/DE202008008725U1/en not_active Expired - Lifetime
- 2008-07-02 EP EP08784598A patent/EP2165186A1/en not_active Ceased
- 2008-07-02 WO PCT/EP2008/005393 patent/WO2009003692A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19806261B4 (en) | 1997-02-14 | 2006-05-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for the controlled representation of cavity surfaces |
US20040249247A1 (en) | 2003-05-01 | 2004-12-09 | Iddan Gavriel J. | Endoscope with panoramic view |
US20060034514A1 (en) | 2004-06-30 | 2006-02-16 | Eli Horn | Device, system, and method for reducing image data captured in-vivo |
Also Published As
Publication number | Publication date |
---|---|
EP2165186A1 (en) | 2010-03-24 |
DE202008008725U1 (en) | 2008-09-25 |
DE102007031358A1 (en) | 2009-03-26 |
WO2009003692A1 (en) | 2009-01-08 |
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