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Titolo:
Turbo code protection of video watermark channel
Autore:
Ambroze, A; Wade, G; Serdean, C; Tomlinson, M; Stander, J; Borda, M;
Indirizzi:
Univ Plymouth, Dept Commun & Elect Engn, Plymouth PL4 8AA, Devon, England Univ Plymouth Plymouth Devon England PL4 8AA outh PL4 8AA, Devon, England Sch Math & Stat, Plymouth PL4 8AA, Devon, England Sch Math & Stat Plymouth Devon England PL4 8AA th PL4 8AA, Devon, England Tech Univ Clui Napoca, Dept Commun, Cluj Napoca, Romania Tech Univ Clui Napoca Cluj Napoca Romania Commun, Cluj Napoca, Romania
Titolo Testata:
IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING
fascicolo: 1, volume: 148, anno: 2001,
pagine: 54 - 58
SICI:
1350-245X(200102)148:1<54:TCPOVW>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONVOLUTIONAL-CODES; ATTACKS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Ambroze, A Univ Plymouth, Dept Commun & Elect Engn, Plymouth PL4 8AA, Devon, England Univ Plymouth Plymouth Devon England PL4 8AA A, Devon, England
Citazione:
A. Ambroze et al., "Turbo code protection of video watermark channel", IEE P-VIS I, 148(1), 2001, pp. 54-58

Abstract

The operational capacity of a watermark data channel is deduced by examining the correlation distribution at the retrieval end of a spread-spectrum-based watermarking system. This enables capacity to be determined given MPEG-2 compression, geometric attack, visual thresholds and channel coding. Watermarking itself is carried out in the DCT domain using video-dependent andvisual perception concepts. An objective of the paper is to determine the capacity improvement provided by advanced FEC. It is found that FEC based on multiple parallel concatenated convolutional codes (3PCCCs) cn give an order improvement in capacity for compressed video, and typically gives 0.5 kbit/s capacity under a combined compression-geometric attack.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/08/20 alle ore 05:45:34