A Web-based video retrieval system of educational films: design, architecture and implementation aspects

摘要

This paper describes the results of our efforts with regard to the design and implementation of an educational digital video library using MPEG-4 and the synchronized multimedia integration language (SMIL). The aim of our work is to integrate MPEG-4 encoding, full text indexing, high-resolution streaming, and SMIL, not only for delivering on-line digital video, but also for enabling semantical search for particular segments of a video clip in a repository of educational digital videos. One of the main purposes of our system is to provide new functionalities and solutions, which are not offered in conventional video libraries without online distribution facilities. Our system allows teachers, students and other users in 145 schools in our region, quick and easy access to film and video clips via the Internet. They are able to encode, store, and retrieve catalogued streaming digital video content to be used in educational settings.