Video Watermarking on Overlay Layer

There exist various video watermarking schemes to protect copyrighted video content. Since most of these schemes exploit the perceptual properties of an original video content, they ineludibly had high computing complexity to embed watermark. However, some video applications such as settop box (STB) don't have enough computing power to insert the watermark into the high definition (HD) content using existing schemes. In this study, we propose an overlay video watermarking scheme that embeds watermark into the overlay layer of the multimedia device. Since the proposed scheme exploits only the traits of human visual system (HVS) without any information about original video data, it achieves both low computational complexity and good imperceptibility. Further, the experimental results prove that the proposed scheme has good fidelity and enough robustness.