This paper presents a robust adaptive embedding scheme using a modified Spatio-Temporal noticeable distortion
(JND) model that is designed for tracing the distribution of the H.264/AVC video content and protecting them from
unauthorized redistribution. The Embedding process is performed during coding process in selected macroblocks type
Intra 4x4 within I-Frame. The method uses spread-spectrum technique in order to obtain robustness against collusion
attacks and the JND model to dynamically adjust the embedding strength and control the energy of the embedded
fingerprints so as to ensure their imperceptibility. Linear and non linear collusion attacks are performed to show the
robustness of the proposed technique against collusion attacks while maintaining visual quality unchanged.
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