A broadband web-based application for video sharing and annotation

Abstract

This demonstration reports on the current stage of development of a web-based environment to support video sharing and annotation. The initial requirements and their implementation are briefly presented. The application is aimed at supporting the professional development of teachers with a multimedia application over a broadband network. However, work with teachers has pointed us to new requirements, differentiating VSA from previous work. Continued work with teachers will lead to further evolution of VSA.

Multimedia and human-in-the-loop

“…A Web interface to a video server can provide the tools to allow piano students and instructors to discuss content once the material has been published and is being streamed. The Video Annotation Server [21,22] is such an application and offers to streaming video viewers the possibility of adding free textual messages to a video or a set of videos. This application has been used during two projects involving many school boards across Canada.…”

Strukturierte verankerte Diskussion als Form kooperativen Lernens mit eLectures (Structured Anchored Discussion as a Means of Collaborative Learning with eLectures)

“…Aufgrund der eingesetzten Technologie des Streaming-Video und der daraus resultierenden Verzögerung durch die notwendige Pufferung sind die Annotationen in der Regel sehr unpräzise (bis zu 10-15 Sekunden nach der referenzierten Stelle) verankert. Ähnlich ist es bei VSA (Emond, Brooks, Smith 2001) und dem in (Chong und Sosakul 2003) beschriebenen System zur Annotation von Streaming-Videos. Eine parallele Darstellung von räumlich und zeitlich verankerten Annotationen wird bei Videos in (Zahn et al 2005) realisiert, wobei eine integrierte Repräsentation der Notizen nicht möglich ist.…”