Title :
Signal combining techniques for video watermarking extraction
Author :
Queluz, M.P. ; Brandao, T. ; Rodrigues, A.
Author_Institution :
Instituto de Telecomunicacoes, Instituto Superior Tecnico, Lisboa, Portugal
Abstract :
This paper analyses the effect of signal combining techniques in video watermark extraction. A spread-spectrum like discrete cosine transform domain (DCT domain) watermarking technique is used as embedding method, together with common error correction codes (BCH, Reed-Solomon with multilevel signaling, and binary convolutional codes with Viterbi decoding). Besides an analytical evaluation of the signal combining strategies, its effectiveness is also assessed experimentally under MPEG-2 video compression.
Keywords :
BCH codes; Reed-Solomon codes; Viterbi decoding; convolutional codes; discrete cosine transforms; image recognition; transform coding; video coding; watermarking; BCH; DCT domain; MPEG-2 video compression; Reed-Solomon coding; Viterbi decoding; binary convolutional code; common error correction code; discrete cosine transform domain; embedding method; multilevel signaling; signal combining technique; video watermarking extraction; Convolutional codes; Decoding; Discrete cosine transforms; Error correction codes; Reed-Solomon codes; Signal analysis; Spread spectrum communication; Transform coding; Viterbi algorithm; Watermarking;
Conference_Titel :
Multimedia Signal Processing, 2002 IEEE Workshop on
Print_ISBN :
0-7803-7713-3
DOI :
10.1109/MMSP.2002.1203317
