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Design, Implementation, and Evaluation of A Digital Lectern System (2003)
BibTeX
@MISC{Joukov03design,implementation,,
author = {Nikolai Joukov and Markus Fauster and Tzi-cker Chiueh},
title = {Design, Implementation, and Evaluation of A Digital Lectern System},
year = {2003}
}
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Abstract
Deployment of asynchronous learning systems is still very limited and expensive due to the common use of digital video for recording and distribution of classroom lectures. Lectern II is a digital desk system that can transparently capture, through a touch-sensitive screen, all important lecture components during normal classroom lecturing activity without expensive video acquisition equipments. Lectures recorded through Lectern can be edited, automat ically uploaded to a web server and viewed by students using a standard streaming media player. Since the average size of a one hour-long lecture is less than 10 MB, Lectern II lectures can be conveniently played even using a modest modem connection. Considering the total cost of a complete Lectern II system at less than $4,000, Lectern II represents the first Web-based course lecture recording system that has the potential to be widely used in the classrooms of universities and K-12 schools.
Keyphrases
digital lectern system lectern ii hour-long lecture first web-based course lecture average size standard streaming medium player digital video web server important lecture component normal classroom lecturing activity touch-sensitive screen complete lectern ii system common use total cost k-12 school expensive video acquisition equipment modest modem connection classroom lecture digital desk system
