Instead of a single time-based image representation, thumbnails allow users to have an overview of a video's content at a glance. See Video abstracts . Video streaming Technology of online video playback. Instead of downloading a video entirely before being able to see it, video streaming allows the user to see it as it is downloaded, using real-time buffering. Thanks to this efficiency, video streaming provides for the playback of live video feeds, hence seamlessly integrating standard broadcasts.
Video streaming delivery and playback is restricted to the end-user's available bandwidth.
Video streaming's state of the art is not very good. While it enables live TV, the Internet bandwidth requirements are such that it greatly reduces the size of the video and the quality of the images and sound. Currently, the quality of video streaming through mass market modems and standard telephone lines is very poor. Video annotation Software program allowing one to add meta-data to video elements according to relevance. Annotations are mostly textual, because they can integrate seamlessly with metasearch engines world wide.