Multimedia monitoring by combining watermarking and characteristic signature of signal

Multimedia monitoring by combining watermarking and characteristic signature of signal

A method and arrangement are disclosed for distributing multimedia content such that that the actual distribution of said content can be monitored in an efficient and reliable manner. The invention combines the extensiveness of feature extraction and the robustness of watermarking. Characteristic fe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: A.A.C.M. KALKER,J.C. OOSTVEEN
Format: Patent
Sprache:eng
Schlagworte:
BROADCAST COMMUNICATION
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:A method and arrangement are disclosed for distributing multimedia content such that that the actual distribution of said content can be monitored in an efficient and reliable manner. The invention combines the extensiveness of feature extraction and the robustness of watermarking. Characteristic features of the content, e.g. luminance distribution, are extracted ( 11 ) to constitute a signature (SIG) of the content. In addition, a watermark is embedded ( 12 ) having a payload representing an index (ID) in a database ( 10 ) in which the content to be monitored is stored. The watermark serves as an index for limiting the database search needed for monitoring the signatures.