METHOD OF INCREASING THE SENSITIVITY OF A WATERMARK DETECTOR

摘要

A method of detecting and extracting a watermark (digital watermarking) in a digital signal. The watermark is composed by the repetition of elementary components of a load to be transmitted. At least one repetition of an elementary component in the digital signal is detected. At least one quality attribute is assigned to each repetition of at least one elementary component. The repetitions of an elementary component are sorted according to a function of the quality attributes of these repetitions. Certain repetitions, dubbed individualities, of an elementary component are selected. The selected repetitions are fused.

主权项

1. A method of detecting and extracting a watermark, a digital watermarking, in a digital signal, said watermark being composed by a repetition of elementary components of a load to be transmitted, said method comprising the steps of:
detecting at least one repetition of an elementary component in the digital signal; assigning at least one quality attribute to each repetition of at least one elementary component; sorting the repetitions of said elementary component according to a function of the quality attributes of these repetitions; selecting certain repetitions, dubbed individualities, of said elementary component; and fusing the selected repetitions.