A Data Embedding Technique For Spatial Scalable Coded Video Using Motion Vector Predictor

This work aims to embed data into scalable coded video by manipulating the syntax elements related to motion vectors. The payload is improved by forcing the prediction blocks to be coded by using smaller block sizes, which directly results in having more manipulable syntax elements to embed data. A threshold is introduced to guide the rate-distortion optimization and data embedding processes. Experimental results suggest that higher payload is achieved when smaller prediction blocks are coded at slightly higher bit rate, with negligible degradation in perceptual video quality. In the best case scenario, 475; 691 bits are embedded into the PartyScene test video sequence while PSNR drops by 0.06dB with a bit rate overhead of 4.72%