DE102011013708B4 - Method for releasing an image of an object - Google Patents
Method for releasing an image of an object Download PDFInfo
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- DE102011013708B4 DE102011013708B4 DE102011013708A DE102011013708A DE102011013708B4 DE 102011013708 B4 DE102011013708 B4 DE 102011013708B4 DE 102011013708 A DE102011013708 A DE 102011013708A DE 102011013708 A DE102011013708 A DE 102011013708A DE 102011013708 B4 DE102011013708 B4 DE 102011013708B4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
- H04L9/0897—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage involving additional devices, e.g. trusted platform module [TPM], smartcard or USB
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/327—Short range or proximity payments by means of M-devices
- G06Q20/3278—RFID or NFC payments by means of M-devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/60—Editing figures and text; Combining figures or text
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/174—Segmentation; Edge detection involving the use of two or more images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/194—Segmentation; Edge detection involving foreground-background segmentation
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
- G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3234—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving additional secure or trusted devices, e.g. TPM, smartcard, USB or software token
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
- H04N1/3872—Repositioning or masking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
-
- 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
- G06T2207/10141—Special mode during image acquisition
- G06T2207/10152—Varying illumination
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/22—Cropping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
Abstract
Verfahren zur freigestellten Abbildung eines Objekts, umfassend nachfolgende Schritte:
a. Digitale Fotografie eines Objekts (5) vor einem weiß hinterleuchteten Bildschirm (1), wodurch ein erstes Foto erhalten wird;
b. Konvertieren dieses ersten Fotos über eine Tonwertverschiebung in ein schwarz-weiß-Foto, proportionale Vergrößerung des schwarzen Bildanteils des Fotos und Invertierung des Fotos, wodurch ein modifiziertes erstes Foto erhalten wird;
c. Darstellung des modifizierten ersten Fotos auf dem Bildschirm (1) und digitale Fotografie des so zentriert vor dem auf dem Bildschirm (1) abgebildeten vergrößerten und invertierten ersten Foto angeordneten Objekts, wodurch ein zweites Foto erhalten wird;
d. Konvertieren des zweiten Fotos über eine Tonwertverschiebung in ein schwarz-weiß-Foto, wodurch ein modifiziertes zweites Foto erhalten wird;
e. Freischneiden des auf dem modifizierten zweiten Foto abgebildeten Objekts (5) über ein Bildverarbeitungsprogramm und basierend hierauf Erstellung einer Maske;
f. Darstellung einer weißen Fläche auf dem Bildschirm (1) und Fotografieren des Objekts...A method for cropping an object, comprising the steps of:
a. Digital photograph of an object (5) in front of a white backlit screen (1), whereby a first photograph is obtained;
b. Converting this first photo to a black-and-white photo via a tonal shift, proportionally increasing the black part of the photo and inverting the photo, resulting in a modified first photo;
c. Depicting the modified first photograph on the screen (1) and digital photography of the object centered in front of the enlarged and inverted first photograph imaged on the screen (1), thereby obtaining a second photograph;
d. Converting the second photo via a tone shift to a black and white photo, thereby obtaining a modified second photo;
e. Cutting free the object (5) imaged on the modified second photograph via an image processing program and, based thereon, creating a mask;
f. Representation of a white area on the screen (1) and photographing the object ...
Description
Die Erfindung betrifft ein Verfahren zur freigestellten Abbildung eines Objekts nach dem Patentanspruch 1.The invention relates to a method for the release of an object according to
Bei der Erstellung von Werbebroschüren oder auch zur Darstellung von Produkten in Internetshops ist es zunehmend erforderlich, die Produkte freigestellt, dass heißt ohne jeglichen Hintergrund abzubilden. Ein hierzu gängiges Verfahren ist das so genannte Chroma Key Verfahren, auch „Blue Box-Technik” genannt. Dazu wird das Objekt vor einem Hintergrund abgelichtet, der einen bestimmten Chroma-Wert mit definiertem Farbton und Farbsättigung aufweist. Dieser Chroma-Wert kann anschließend durch einen gewünschten Hintergrund ersetzt werden. Nachteil dieses Verfahrens ist jedoch, dass das jeweilige Objekt diesen Farbton nicht enthalten darf. Dieses gilt auch für Spiegelungen oder Reflektionen, welche sich auf dem fotografierten Objekt befinden können. Insbesondere im Bereich der Werbefotografie, wo in kurzer Zeit unterschiedlichste Produkte zu fotografieren sind, bedeutet dies, dass der Chroma-Hintergrund häufig zu wechseln ist. Aber auch bei angepasstem Hintergrund ist es bei verschiedensten modischen Produkten nicht auszuschließen, dass Farbinformationen des Produkts verloren gehen.In the creation of advertising brochures or to display products in Internet shops, it is increasingly necessary to release the products, that is without any background. A commonly used method is the so-called chroma key method, also called "blue box technique". For this purpose, the object is scanned against a background that has a specific chroma value with a defined hue and color saturation. This chroma value can then be replaced by a desired background. Disadvantage of this method, however, is that the respective object may not contain this hue. This also applies to reflections or reflections that may be present on the photographed object. Particularly in the field of advertising photography, where a wide variety of products are to be photographed in a short time, this means that the chroma background has to be changed frequently. But even with a customized background, it can not be ruled out that the color information of the product will be lost in a wide range of fashionable products.
In diesem Zusammenhang ist folgender Stand der Technik relevant:
Die
The
Die
Die
Die
MATUSIK, W. (et al.): Image-based 3D Photography Using Hulls, in Proceedings of the 29th Annual Conference on Computer Graphics and Interactive Techniques, 2002, San Antonio, Texas, S. 427–437 beschreibt eine Bild basierte 3D Fotografie durch Nutzung „undurchsichtiger Hüllen”.MATUSIK, W. (et al.): Image-based 3D Photography Using Hulls, in Proceedings of the 29th Annual Conference on Computer Graphics and Interactive Techniques, 2002, San Antonio, Texas, pp. 427-437 describes an image based 3D photograph by using "opaque covers".
Die
Die
Die
Die
SMITH, A. R. (et al.): Blue Screen matting. Proceedings of the 23rd Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1996, ACM, New York, S. 259–268. Theorie: Aufzeigen einer algorithmischen Lösung, die es ermöglicht, ein Vordergrundobjekt gegen 2 konstante Farben abzugrenzen und zu unterscheiden.SMITH, AR (et al.): Blue Screen matting. Proceedings of the 23 rd Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1996, ACM, New York, pp 259-268. Theory: Demonstration of an algorithmic solution that allows to distinguish and distinguish a foreground object from 2 constant colors.
Die
Hier will die Erfindung Abhilfe schaffen. Der Erfindung liegt die Aufgabe zu Grunde, ein Verfahren zur freigestellten Abbildung eines Objekts zu schaffen, welches farbunabhängig einsetzbar ist. Gemäß der Erfindung wird diese Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst. Mit der Erfindung ist ein Verfahren zur freigestellten Abbildung eines Objekts geschaffen, welches eine farbunabhängige Freistellung von Objekten ermöglicht. Durch die objektbezogene Beleuchtung des Objektes über den Bildschirm, auf dem eine vor einem weißen Bildschirm abgelichtete vergrößerte und invertierte Freistellung des Objektes abgebildet ist, werden unerwünschte Reflektionen vermieden.The invention aims to remedy this situation. The invention is based on the object to provide a method for isolated imaging of an object, which can be used independently of color. According to the invention, this object is solved by the features of
Auf Basis dieses Fotos wird eine Maske erzeugt, welche eine exakte Freistellung des mit zusätzlichen Beleuchtungsmitteln künstlerisch abgelichteten Bildes ermöglicht.On the basis of this photo, a mask is created, which allows an exact release of the artistically scanned image with additional lighting means.
In Weiterbildung der Erfindung ist der Bildschirm ein Plasmabildschirm. Dadurch ist eine gleichmäßige annähernd parallele Beleuchtung des Objekts ermöglicht. Alternativ kann auch ein voll hinterleuchteter LED Bildschirm zum Einsatz kommen.In a further development of the invention, the screen is a plasma screen. This allows a uniform approximately parallel illumination of the object. Alternatively, a fully backlit LED screen can be used.
In Ausgestaltung der Erfindung erfolgt die proportionale Vergrößerung des schwarzen Bildanteils des ersten Fotos um zwischen 20 und 120 Pixel, vorzugsweise zwischen 15 und 100 Pixel, bevorzugt zwischen 70 und 90 Pixel. Hierdurch wird eine gegenüber dem Objekt etwas verbreiterte Beleuchtungskontur erzielt, die über dem Bildschirm als Lichtquelle dargestellt wird. Hierdurch werden störende Reflexionen weiter vermieden.In an embodiment of the invention, the proportional enlargement of the black image portion of the first photo takes place between 20 and 120 pixels, preferably between 15 and 100 pixels, preferably between 70 and 90 pixels. As a result, a slightly widened compared to the object illumination contour is achieved, which is displayed above the screen as a light source. As a result, disturbing reflections are further avoided.
In Weiterbildung der Erfindung wird bei der Tonwertverschiebung des ersten Fotos eine Kontrastumfangverringerung vorgenommen. Hierdurch ist eine gute Schwarz-Weiß-Darstellung der Objektkontur erzielt.In a further development of the invention, a reduction in contrast circumference is made in the tone value shift of the first photo. As a result, a good black and white representation of the object contour is achieved.
In Ausgestaltung der Erfindung wird das erste Foto im JPEG-Format abgespeichert, bevor es auf dem Bildschirm dargestellt wird. Hierdurch ist die Datenrate verringert, wodurch die Übermittlungszeit reduziert ist. In an embodiment of the invention, the first photo is stored in JPEG format before it is displayed on the screen. This reduces the data rate, which reduces the transmission time.
Vorteilhaft wird das modifizierte dritte Foto im PNG-Format mit Transparenz abgespeichert. Hierdurch wird das freigestellte Objekt gut vor jedweden Hintergründen platzierbar.Advantageously, the modified third photo is saved in PNG format with transparency. As a result, the cropped object can be placed well in front of any background.
In Weiterbildung der Erfindung ist der Bildschirm ein Plasmabildschirm oder ein vollständig hinterleuchteter Bildschirm. Hierdurch ist eine gleichmäßige Beleuchtung des Objekts ermöglicht.In a further development of the invention, the screen is a plasma screen or a fully backlit screen. This allows a uniform illumination of the object.
Die einzige
Die Vorrichtung zur freigestellten Abbildung eines Objekts besteht im Wesentlichen aus einer Digitalkamera
Zur freigestellten Ablichtung eines Objekts
Mit der Kamera
Nachfolgend erfolgt eine zweite Aufnahme des Objekts, welches so zentriert vor dem auf Bildschirm abgebildeten vergrößerten und invertierten ersten Foto positioniert und durch dieses beleuchtet wird. Es wird ein zweites Foto erhalten, das sogenannte Plasmadifferenzbild. Auch hier kommen die LED-Beleuchtungseinheiten
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Plasmabildschirm plasma screen
- 22
- Objektträger slides
- 33
- Kamera camera
- 44
- Rechner- und Steuereinheit Computer and control unit
- 55
- Objekt object
- 66
- LED-Beleuchtungseinheiten LED lighting units
- 2121
- Schrittmotor stepper motor
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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DE102011013708A DE102011013708B4 (en) | 2011-03-11 | 2011-03-11 | Method for releasing an image of an object |
DE202011108622U DE202011108622U1 (en) | 2011-03-11 | 2011-03-11 | Device for the release of an object |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102011013708A DE102011013708B4 (en) | 2011-03-11 | 2011-03-11 | Method for releasing an image of an object |
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DE102011013708A1 DE102011013708A1 (en) | 2012-09-13 |
DE102011013708B4 true DE102011013708B4 (en) | 2012-12-13 |
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DE102011013708A Active DE102011013708B4 (en) | 2011-03-11 | 2011-03-11 | Method for releasing an image of an object |
DE202011108622U Expired - Lifetime DE202011108622U1 (en) | 2011-03-11 | 2011-03-11 | Device for the release of an object |
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DE202011108622U Expired - Lifetime DE202011108622U1 (en) | 2011-03-11 | 2011-03-11 | Device for the release of an object |
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Families Citing this family (1)
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WO2014154303A1 (en) * | 2013-03-28 | 2014-10-02 | Visual Retailing Holding B.V. | Photographing objects supported by an illuminated support |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030231174A1 (en) * | 2002-06-17 | 2003-12-18 | Wojciech Matusik | Modeling and rendering of surface reflectance fields of 3D objects |
US6792140B2 (en) * | 2001-04-26 | 2004-09-14 | Mitsubish Electric Research Laboratories, Inc. | Image-based 3D digitizer |
DE102006050209A1 (en) * | 2005-10-28 | 2007-05-03 | Arc Seibersdorf Research Gmbh | Object imaging method e.g. for computer games, involves comparison of given image and recorded image at specified time intervals |
US7259747B2 (en) * | 2001-06-05 | 2007-08-21 | Reactrix Systems, Inc. | Interactive video display system |
US20070252900A1 (en) * | 2001-08-13 | 2007-11-01 | Olympus Corporation | Shape extraction system and 3-D (three dimension) information acquisition system using the same |
US20070263119A1 (en) * | 2006-05-15 | 2007-11-15 | Microsoft Corporation | Object matting using flash and no-flash images |
US20080056569A1 (en) * | 2006-09-05 | 2008-03-06 | Williams Robert C | Background separated images for print and on-line use |
US20080226273A1 (en) * | 2005-03-10 | 2008-09-18 | Toshihiko Kaku | Background Replacing Apparatus, Background Replacing Program, and Background Replacing Method |
US20080246777A1 (en) * | 2007-04-03 | 2008-10-09 | Richard Lee Swanson | Method and apparatus for background replacement in still photographs |
-
2011
- 2011-03-11 DE DE102011013708A patent/DE102011013708B4/en active Active
- 2011-03-11 DE DE202011108622U patent/DE202011108622U1/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6792140B2 (en) * | 2001-04-26 | 2004-09-14 | Mitsubish Electric Research Laboratories, Inc. | Image-based 3D digitizer |
US7259747B2 (en) * | 2001-06-05 | 2007-08-21 | Reactrix Systems, Inc. | Interactive video display system |
US20070252900A1 (en) * | 2001-08-13 | 2007-11-01 | Olympus Corporation | Shape extraction system and 3-D (three dimension) information acquisition system using the same |
US20030231174A1 (en) * | 2002-06-17 | 2003-12-18 | Wojciech Matusik | Modeling and rendering of surface reflectance fields of 3D objects |
US20080226273A1 (en) * | 2005-03-10 | 2008-09-18 | Toshihiko Kaku | Background Replacing Apparatus, Background Replacing Program, and Background Replacing Method |
DE102006050209A1 (en) * | 2005-10-28 | 2007-05-03 | Arc Seibersdorf Research Gmbh | Object imaging method e.g. for computer games, involves comparison of given image and recorded image at specified time intervals |
US20070263119A1 (en) * | 2006-05-15 | 2007-11-15 | Microsoft Corporation | Object matting using flash and no-flash images |
US20080056569A1 (en) * | 2006-09-05 | 2008-03-06 | Williams Robert C | Background separated images for print and on-line use |
US20080246777A1 (en) * | 2007-04-03 | 2008-10-09 | Richard Lee Swanson | Method and apparatus for background replacement in still photographs |
Non-Patent Citations (2)
Title |
---|
MATUSIK, W. [et al.]: Image-based3D Photography Using Opacity Hulls, in Proceedings of the 29th Annual Conference on Computer Graphics and Interactive Techniques, 2002, San Antonio, Texas, S. 427-437. * |
SMITH, A. R. [et al.]: Blue Screen Matting. Proceedings of the 23rd Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1996, ACM, New York, S. 259-268. * |
Also Published As
Publication number | Publication date |
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DE202011108622U1 (en) | 2012-01-23 |
DE102011013708A1 (en) | 2012-09-13 |
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