Research On And Implementing Shape Coding Within The Framework Of MPEG-4

In latter years, new needs of applications have been emerging in video technology, that is content-based inter -action and operation. Before releasing MPEG4, existing standards only deal with a audio-visual scene at a frame level, It is necessary to handle adividual object, allowing scalable transmition and interactive recomposition at receiver. MPEG-4 gives a shape coding tool to implement these functionalities. This paper outlines the tool, paying attention to design and implementing Context-based Arith -metic Coding.