Virtual classroom system with improved student feedback

Author

van der Schyff, M. ; Ferreira, H.C. ; Clarke, W.A.

Author_Institution

Dept. of Electr. & Electron. Eng., Rand Afrikaans Univ., Johannesburg

Volume

1

fYear

2004

fDate

17-17 Sept. 2004

Firstpage

499

Abstract

Student feedback in traditional virtual classrooms is usually limited to intentional feedback. Information pertaining to the actual mental state (bored, interested, content, confused), gathered from facial expressions and gestures is lost. The paper focuses on methods to increase student feedback without placing unnecessary or excessive strain on available resources such as bandwidth, memory and processing power. The method uses indirect (facial actions from student video) and direct (answers to questions and opinions) feedback to estimate the student´s state. These estimates are then used to prioritise video transmission/updating from student to teacher. An experimental system is currently being developed and implemented using the Java Multimedia Framework (JMF)

Keywords

Java; computer aided instruction; distance learning; emotion recognition; feature extraction; feedback; video signal processing; Java Multimedia Framework; bandwidth; direct feedback; distance education; facial expressions; feature extraction; gestures; indirect feedback; memory; mental state; processing power; student feedback; video transmission; video updating; virtual classroom system; Bandwidth; Capacitive sensors; Computer science education; Costs; Distance learning; Feedback; Java; Multimedia systems; Protocols; Real time systems;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 2004. 7th AFRICON Conference in Africa

Conference_Location

Gaborone

Print_ISBN

0-7803-8605-1

Type

conf

DOI

10.1109/AFRICON.2004.1406725

Filename

1406725