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Einbetter zum Einbetten eines Wasserzeichens in eine Informationsdarstellung, Detektor zum Detektieren eines Wasserzeichens in einer Informationsdarstellung, Verfahren, Computerprogramm und Informationssignal

Embedder for embedding watermark in input- information-representation, has adder providing input-information-representation with watermark based on recognized watermark information to obtain information representation with watermark
 
: Pickel, J.; Borsum, J.; Kraegeloh, S.; Eberlein, E.; Grill, B.

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Frontpage ()

DE 102008014331 A: 20080314
DE 102008014331 A: 20080314
G06F0021
Deutsch
Patent, Elektronische Publikation
Fraunhofer IIS ()

Abstract
(A1) Ein Einbetter zum Einbetten eines einzubettenden Wasserzeichens in eine Eingangs-Informationsdarstellung umfasst einen Wasserzeichen-Informations-Erkenner, der ausgelegt ist, um eine bereits in der Eingangs-Informationsdarstellung enthaltene Wasserzeicheninformation zu erkennen. Der Einbetter umfasst ferner einen Wasserzeichen-Hinzufueger, der ausgelegt ist, um die Eingangs-Informationsdarstellung abhaengig von der von dem Wasserzeichen-Informations-Erkenner erkannten Wasserzeicheninformation mit dem Wasserzeichen zu versehen, um eine mit dem einzubettenden Wasserzeichen versehene Informationsdarstellung zu erhalten.

 

DE 102008014331 A1 UPAB: 20090923 NOVELTY - The embedder (100) has a watermark- information-recognition unit (120) designed to recognize watermark-information that is already contained in an input-information representation (110). A watermark-adder (130) is designed to provide the input-information representation with a watermark (132) depending on the watermark information recognized by the watermark-information-recognition unit in order to obtain an information representation (134) provided with the watermark that is to be embedded. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a detector for detection of two watermarks in an input-information-representation provided with multiple of watermarks (2) a method for embedding the watermark that is to be embedded in an input- information-representation (3) a method for detecting of two watermarks in the input- information-representation provided with watermarks (4) a computer program for implementing the method for embedding and detecting of two watermarks in the input- information-representation provided with watermarks (5) an information signal, which comprises the watermark information. USE - Embedder for embedding a watermark in an input- information-representation. ADVANTAGE - The embedder is designed such that the watermark is embedded in the input- information-representation in an improved manner, and is detected in an easy manner. The embedder avoids or minimizes disturbing influences between the watermark that already exists in the information-representation and/or the watermark, which can be newly embedded again. The watermark already contained in the information-representation, and the watermark that is added again, can use certain information i.e. synchronization information, together. The design of the embedder prevents multiple embedding of the redundant information into the information-representation, thus reducing negative influence of useful-information contents of the information-representation. The water mark already provided in the information representation, dependent on embedding of a watermark to be added new, enables a purposeful selection of resources e.g. frequency resources, time resources or code resources, used for the watermark embedding, thus avoiding or reducing mutual impairment of multiple embedded watermarks, and hence obtaining systematic resources application such that an efficient proceeding can be achieved, during the extraction and/or detection of watermark.

: http://publica.fraunhofer.de/dokumente/N-106387.html