DE102013020417A1 - Method for evaluating optical quality of disk in optical path of stereo camera for observation of front end of vehicle, involves placing measuring windows over one another, so that overlapped surface on measuring surface is maximized - Google Patents
Method for evaluating optical quality of disk in optical path of stereo camera for observation of front end of vehicle, involves placing measuring windows over one another, so that overlapped surface on measuring surface is maximized Download PDFInfo
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- DE102013020417A1 DE102013020417A1 DE201310020417 DE102013020417A DE102013020417A1 DE 102013020417 A1 DE102013020417 A1 DE 102013020417A1 DE 201310020417 DE201310020417 DE 201310020417 DE 102013020417 A DE102013020417 A DE 102013020417A DE 102013020417 A1 DE102013020417 A1 DE 102013020417A1
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- measuring
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- maximized
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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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
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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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
- G01N2021/9586—Windscreens
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- 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)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Beurteilung der Scheibenqualität für Kameraanwendungen vorzugsweise für Frontscheiben von Automobilen, welche im optischen Pfad von Stereokameras zur Beobachtung des Vorfelds des Fahrzeugs dienen.The invention relates to a method for assessing the quality of glass for camera applications, preferably for windscreens of automobiles, which serve in the optical path of stereo cameras for observing the apron of the vehicle.
Moderne Fahrzeuge enthalten zunehmend optoelektronische Systeme wie Stereokameras um vor dem Fahrzeug auftauchende Hindernisse korrekt räumlich zu erkennen, Verkehrsteilnehmer zu identifizieren und letztendlich die aktive Sicherheit zu erhöhen.Modern vehicles increasingly include optoelectronic systems such as stereo cameras to correctly detect obstacles appearing in front of the vehicle, to identify road users and ultimately to increase active safety.
Aus Gründen des besseren Designs und der Schmutzfreiheit werden die Kameras hinter der Windschutz- oder Frontscheibe vorzugsweise im Bereich vor dem Innenrückspiegel angeordnet, so dass der optische Pfad der Stereokameras zur Beobachtung des Vorfelds durch die Frontscheibe geht. Kleinste Fehler in der optischen Beschaffenheit der Frontscheibe, welche für die reine Durchsicht des Fahrers auf die Fahrbahn unerheblich sind, führen bei solch anspruchsvollen Beobachtungsverfahren mit Stereokameras zu optischen Verzeichnungen und beeinträchtigen diese komplexen Beobachtungsverfahren.For reasons of better design and freedom from dirt, the cameras behind the windshield or windshield are preferably arranged in the area in front of the interior rearview mirror, so that the optical path of the stereo cameras for observing the apron passes through the front window. The smallest errors in the visual appearance of the windshield, which are insignificant for the driver's clear view of the road surface, lead to optical distortions in such demanding observation methods with stereo cameras and impair these complex observation methods.
Solch fehlerbehaftete, optisch minderwertige Windschutz- oder Frontscheiben, welche bei diesen anspruchsvollen Beobachtungsverfahren mit Stereokameras zu optischen Verzeichnungen führen würden, sollten schon beim Scheibenzulieferer erkannt und aussortiert werden. Somit kann vermieden werden, dass fehlerbehaftete, optisch minderwertige Scheiben in Serienfahrzeugen verbaut werden und nach Fertigstellung und Auslieferung aufwändige Austausch- und Reparaturarbeiten notwendig werden.Such faulty, optically inferior windshields or windscreens, which would lead to optical distortions in these sophisticated observation methods with stereo cameras, should already be recognized and sorted out by the disk supplier. Thus it can be avoided that faulty, optically inferior discs are installed in production vehicles and after completion and delivery consuming replacement and repair work are necessary.
Die
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zur automatisierten Qualitätsprüfung durch Vermessung lichtdurchlässiger Scheiben zu schaffen, das optisch fehlerhafte Scheiben vor dem Einbau zuverlässig identifizieren und aussortieren kann.The object of the present invention is to provide a method for automated quality testing by measuring transparent panes that can reliably identify and discard optically defective panes prior to installation.
Diese Aufgabe wird durch ein optisches Verfahren mit den Merkmalen des Anspruchs 1 gelöst. Weiterbildungen des Verfahrens sind in den Unteransprüchen ausgeführt.This object is achieved by an optical method having the features of claim 1. Further developments of the method are set forth in the subclaims.
Bevorzuge Ausführungsformen sind in den folgenden Prinzipienskizzen dargestellt. Dabei zeigt
Das Messfenster
Ein Gütemaß berechnet sich aus dem Root Mean Squared Error RMSE als Wurzel aus dem Mittelwert aller tatsächlich gemessenen Zeilen
Ein anderes Gütemaß nutzt die Steigung und den Achsenabschnitt einer Geraden die wie folgt berechnet wird: Erst werden die Differenzen zeilenweise gemittelt, was pro Zeile einen Mittelwert ergibt, wobei die Zeile
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005050882 B4 [0005] DE 102005050882 B4 [0005]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310020417 DE102013020417A1 (en) | 2013-12-05 | 2013-12-05 | Method for evaluating optical quality of disk in optical path of stereo camera for observation of front end of vehicle, involves placing measuring windows over one another, so that overlapped surface on measuring surface is maximized |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE201310020417 DE102013020417A1 (en) | 2013-12-05 | 2013-12-05 | Method for evaluating optical quality of disk in optical path of stereo camera for observation of front end of vehicle, involves placing measuring windows over one another, so that overlapped surface on measuring surface is maximized |
Publications (1)
Publication Number | Publication Date |
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DE102013020417A1 true DE102013020417A1 (en) | 2014-07-31 |
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ID=51163300
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DE201310020417 Withdrawn DE102013020417A1 (en) | 2013-12-05 | 2013-12-05 | Method for evaluating optical quality of disk in optical path of stereo camera for observation of front end of vehicle, involves placing measuring windows over one another, so that overlapped surface on measuring surface is maximized |
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DE (1) | DE102013020417A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800009463A1 (en) * | 2018-10-15 | 2020-04-15 | Daniele Iafrate | METHOD AND EQUIPMENT FOR THE CONTROL OF THE OPTICAL DISTORTION OF AUTOMOTIVE GLASSES IN PRODUCTION LINE IN CONFIGURATION IN CONFIGURATION IN COMPLIANCE WITH UN ECE R43 STANDARD. |
US20220412897A1 (en) * | 2019-12-06 | 2022-12-29 | Saint-Gobain Glass France | Method for measuring the optical quality of a given region of a glazing unit, associated measuring device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005050882B4 (en) | 2005-10-21 | 2008-04-30 | Isra Vision Systems Ag | System and method for optical inspection of glass panes |
-
2013
- 2013-12-05 DE DE201310020417 patent/DE102013020417A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005050882B4 (en) | 2005-10-21 | 2008-04-30 | Isra Vision Systems Ag | System and method for optical inspection of glass panes |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800009463A1 (en) * | 2018-10-15 | 2020-04-15 | Daniele Iafrate | METHOD AND EQUIPMENT FOR THE CONTROL OF THE OPTICAL DISTORTION OF AUTOMOTIVE GLASSES IN PRODUCTION LINE IN CONFIGURATION IN CONFIGURATION IN COMPLIANCE WITH UN ECE R43 STANDARD. |
US20220412897A1 (en) * | 2019-12-06 | 2022-12-29 | Saint-Gobain Glass France | Method for measuring the optical quality of a given region of a glazing unit, associated measuring device |
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Legal Events
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R230 | Request for early publication | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |