Authentication and Copyright Protection Scheme for H.264/AVC and SVC

This paper proposes an authentication scheme based on fragile watermarking as well as a copyright protection (CP) scheme based on non-blind watermarking for H.264/AVC and SVC. The proposed authentication scheme uses the intra prediction modes and the in- ter prediction modes which are optimized for blocks as watermark for authentication, and the watermark thus generated is embedded into the quantized coefficients that satisfy a given condition. This scheme offers low running time in the H.264 encoding/decoding process, but it has a little increased ratio permissible in the bit-rate. The proposed CP scheme inserts a watermark of the owner into the DCT domain of I-frames that are divided into 4 × 4 blocks of uncompressed content. Our CP scheme provides robust watermark not only in the content to which fragile watermarking is applied but also in the content which is re-encoded and modified as intended. Moreover, the proposed Authentication and Copyright Protection Scheme offers low computational complexity as well as low degra- dation of video quality.