Object-based video coding using a dynamic coding approach

In this paper we propose a video-object based coding scheme using dynamic coding. The principle of dynamic coding is to set on competition different coders on each video object. Thus, we are proposing a video-object based dynamic coding scheme using four completely different coders. The novelty of our work firstly comprise a global rate-distortion optimization enabling an optimal selection of a coder and its parameters for each object, and secondly the definition of a distortion metric. Our work is thus confirms that dynamic coding is efficient. It shows that a video object based coding approach is competitive. It improves object based video coders such as MPEG4 and it gives interesting comparison results between different state-of-the-art coders.