Object coding based video authentication for privacy protection in immersive communication

Video immersive communication has become a new trend in human-interaction technologies by the information exchanging, which requires the object based coding to provide very low bit rate compression for transmission as well as to protect the privacy of the users. In addition, advanced content-based functionalities in ambient intelligence such as encoder/decoder selection and manipulation of specific objects in a video stream also need the support from object based coding. Unfortunately, due to a malicious entity of modification/replacement/removement of the individual foreground objects and background in the video, effective video authenticity protection is still challenging in some realistic cases. In this paper, we propose an object based coding authentication strategy based on a Chinese remainder theorem for video authenticity protection during transmission. With the watermark generation for single frame and content scalable video coding, we performed the proposed authenticity verification on both original video and sub-video. Based on the efficiency evaluation on video transmission, the proposed approach ensures an applicable authenticity between the foreground objects and their associated background for video immersive applications.