Next generation tele-teaching: Latest recording technology, user engagement and automatic metadata retrieval

Abstract

With the latest technological development in the last decade, new opportunities for learning environments and educational systems, such as tele-teaching, arose. Nowadays recording technology includes easy and fast workflows, high definition video recording, multiple sources and diverse output formats. With the amount of tele-teaching content growing, issues with sufficient metadata start existing. One solution is the user engagement. User engagement is based on the theory of the culture of participation and includes the usage of web 2.0 technology to activate students. This also has positive didactical side-effects. Another solution is the automatic creation of metadata. Therefore we have developed an automated framework by using video OCR (Optical Character Recognition) and ASR (Automated Speech Recognition) technologies. Indexable keywords are further extracted from those OCR and ASR transcripts. © 2013 Springer-Verlag.