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AssigneesCsp - Innovazione Nelle Ict Scarl, Universita' Degli Studi Di Firenze, S.I.Sv.El Societa' Italiana Per Lo Sviluppo Dell'elettronica S.P.A.
InventorsGiovanni Ballocca, Roberto Borri, Roberto Caldelli, Rudy Becarelli, Francesco Filippini
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A method for referencing and interconnecting contents, applications and metadata to an audiovisual content is described, especially for iTV of for distribution on DVD, which comprises the step of inserting a digital watermark into the audiovisual content during an audiovisual content encoding step, the digital watermark being possibly used for allowing a user to reproduce or exploit additional contents supplementing those provided by the audiovisual content, wherein the digital watermark is inserted into the audiovisual content as data frame with header and body by subdividing it into a plurality of consecutive ‘I’ frames and forcing the parity of LSBs of mid-frequency providing an auxiliary watermark channel, e.g. in an MPEG2 transport stream.
Method for embedding interactive data into an audiovisual content by watermarking, said method comprising the step of inserting a digital watermark into said audiovisual content during an audiovisual content encoding step, said digital watermark being used for allowing a user to reproduce or exploit additional contents supplementing those provided by said audiovisual content, wherein said audiovisual content is an interactive television (iTV) audiovisual content, and wherein said digital watermark is inserted into said iTV audiovisual content by subdividing the digital watermark into a plurality of consecutive ‘I’ frames of said iTV audiovisual content.
Method of operation of a decoder able to decode embedded interactive data into an audiovisual content by watermarking, said method comprising the steps of:
Dependencies are inferred from the claim text.