Content monitoring

Details Content monitoring Content monitoring

2007-01-23

2007-01-23

Koenig, Andrew Y. (Department: 2623)

Interactive video distribution systems

Use surveying or monitoring

By passively monitoring receiver operation

Reexamination Certificate

active

09908597

ABSTRACT:
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.

REFERENCES:
patent: 5481294 (1996-01-01), Thomas et al.
patent: 2258065 (1993-01-01), None
patent: 9945705 (1999-09-01), None
patent: WO9959275 (1999-11-01), None

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