characterised by the embedded information being invisible, e.g. watermarking

Full Title

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > Embedding additional information in the video signal during the compression process > characterised by the embedded information being invisible, e.g. watermarking

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

PICTORIAL COMMUNICATION, e.g. TELEVISION