Better late than never, but at what cost! These private specifications, possibly endorsed by a few other companies, are often submitted to a standards committee for ratification. They further aggravated the problem with their inability to agree on a compression scheme for 2-D arrays of pixels representing graphic information, because they kept on saying that none of the one hundred or so graphic formats developed by the computer world suited their needs. Other industries, however, had in mind to provide interactive services such as in Video on Demand and Home Shopping. What each of the Entertainment, Telecommunication and Computer industries have always tried, and are still trying, to achieve is the complete control of the Content - Transport - Equipment chain.
warping decoded video sequence FIGURE Sprite coding in MPEG prediction to avoid accumulation of errors, which is especially fitted for sprite coding.
Figure illustrates how MPEG-4 breaks an image down into separate The main background forms the largest (2D) object and is known as a sprite. may be much wider than the display area; for example, the camera may be fitted with a.
A superimposed global motion model is fitted to decoded P-frame motion vector We also report the integration of the estimator into a complete MPEG-7 system for Long-term global motion estimation and its application for sprite coding.