What is Context-Based Access

Recently, multimedia applications have undergone explosive growth due to the monotonic increase in the available processing power and bandwidth. This incurs the generation of large amounts of media data that need to be effectively and efficiently organized and stored. While these applications generate and use vast amounts of multimedia data, the technologies for organizing and searching them are still immature. These data are usually stored in multimedia archives utilizing search engines to enable users to retrieve the required information. In this article, each of the above stages will be reviewed and expounded. Background, current research directions, and outstanding problems will also be discussed.