A depth camera based approach for automatic control of video cameras in lecture halls. Issue 3 (9th September 2014)

• Record Type: Journal Article
• Authors: Markus Ketterl, Dr; Christopher Brooks, Dr; Florian Schimanke, Mr; Winkler, Michael; Michael Höver, Kai; Mühlhäuser, Max
• Is Part Of: Interactive technology and smart education. Volume 11:Issue 3(2014)
• Page Start: 169
• Page End: 183
• Publication Date: 2014-09-09
• Subjects: Interactive multimedia -- Periodicals; Educational technology -- Periodicals; 006.7
• DOI: 10.1108/ITSE-06-2014-0012
• Languages: English
• ISSNs: 1741-5659

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <sec> <title content-type="abstract-heading">Purpose</title> <p> – The purpose of this study is to present a depth information-based solution for automatic camera control, depending on the presenter's moving positions. Talks, presentations and lectures are often captured on video to give a broad audience the possibility to (re-)access the content. As presenters are often moving around during a talk, it is necessary to steer recording cameras. </p> </sec> <sec> <title content-type="abstract-heading">Design/methodology/approach</title> <p> – We use depth information from Kinect to implement a prototypical application to automatically steer multiple cameras for recording a talk. </p> </sec> <sec> <title content-type="abstract-heading">Findings</title> <p> – We present our experiences with the system during actual lectures at a university. We found out that Kinect is applicable for tracking a presenter during a talk robustly. Nevertheless, our prototypical solution reveals potential for improvements, which we discuss in our future work section. </p> </sec> <sec> <title content-type="abstract-heading">Originality/value</title> <p> – Tracking a presenter is based on a skeleton model extracted from depth information instead of using two-dimensional (2D) motion- or brightness-based image processing techniques. The solution uses a scalable networking architecture based on publish/subscribe messaging for controlling multiple video cameras.</p> </sec> </abstract>