SeLCont: Synchronised e-Learning Content
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SeLCont is a toolkit that allows for the synchronized online recording and playback of lectures. It records video, slides, screenshots and annotations and timestamps them to allow synchronized playback on any device. The recording process uses standard lecture hall equipment and minimal post-processing. Recorded lectures are published as a web page for on-demand retrieval by students without plugins. SeLCont could be used by professors, teachers and presenters or integrated within learning management systems and ecosystems like Up2University to enhance digital education.
SeLCont: Synchronised e-Learning Content
- 1. D. Pantazatos, C. Marinos, K. Giotis, A. Vekris, M. Grammatikou, V. Maglaris {dpantazatos,cmarinos,coyiotis,avekr,mary,maglaris}@netmode.ntua.gr INTED Conference, Valencia, March 2018 SeLCont: Synchronized e-Learning Content
- 2. On-line Synchronized Lectures • On-line Lectures include: • Video • Slides (PowerPoint/PDF) • Internet screenshots (Browsing) • Annotations on slides • Benefits to the presenter: • Use of standard equipment in most lecture halls (web camera, projector) • Instructor laptop/tablet with pre-installed SeLCont time-stamp recorder • Minimal video post-processing (optional) • On-line storage: Simple pre-formatted web-page, links to video service e.g. YouTube • Benefit to the end-user (e.g. student): • Retrieval as a URL link in any web browser, no need for any add-on • Transparent adjustment to any device (smartphones, tablets, laptops, desktops)
- 3. Synchronization Process in three Steps 1st Step: Lecture delivery & recording 2nd Step: Post-processing 3rd Step: Publishing of final result
- 4. 1st Step: Lecture Delivery & Recording • Video-audio recording • Using common lecture hall equipment • May also capture hand-written notes on a blackboard/whiteboard • Recording of support material from presenter’s laptop/tablet • Slides (PowerPoint/PDF) • Internet screens and other browser screenshots • Annotations produced on presenter laptop/tablet • Timestamps recorded in a SeLCont file • Synchronization of screenshots within video – audio stream • Timestamps generated on PrtScn or Spacebar or PgUp – PgDn or arrow keys via a light SeLCont Python script (downloaded in the presenter’s Windows laptop)
- 5. 2nd Step: Post-Processing • Optional simple video editing of recorded video file (e.g. in MP4) using off-the shelf editors (e.g. Camtasia, Wondershare, OpenShot…) • Uploading of (edited) video in a video provider cloud (e.g. YouTube)
- 6. 3rd Step: Publishing of Final Result • Development of lecture web page, preferably via a Content Management System - CMS (e.g. WordPress) • Data entry in pre-formatted web form of lecture-specific info: • Lecture title, Keywords, Presenter • Video URL (in video cloud, e.g. YouTube) • Presentation file (PowerPoint/PDF) • Screenshots (timestamps) to be synchronized with the video stream • Final check & uploading of SeLCont lecture via its URL SeLCont Lecture’s Web Page (HTML5, JS, CSS3) PPT,PDF, PNG, JPEG VIDEO, AUDIO
- 7. SeLCont Lecture Web-page Technical Highlights HTML5: HTML5 video player (JWPlayer) JavaScript: Using jQuery Responsive: Bootstrap framework Synchronization: Automatic or user controlled via thumbnails associated with screenshots below video sub-frame
- 8. Potential SeLCont Users SeLCont as a product to be used by: • Professors • Teachers • Presenters • Web site owners delivering on-line synchronized multimedia content SeLCont as a service to lecture-providing organizations: • Schools • Universities • Research Institutes • Companies organizing lectures, seminars, presentations
- 10. SeLCont on Up2U (1/2) SeLCont will be used as a service in the Up2U ecosystem. It is integrated within the Up2U platform as a WordPress Multisite Network. On the deployed Multisite platform, teachers can create on demand their own WordPress instances running SeLCont Plugins.
- 11. SeLCont on Up2U (2/2)
- 12. Conclusions • SeLCont is an open source, user friendly lecture recording toolkit that stores and reproduces synchronized multimedia content: Lecture streams and accompanying material (slides, desktop screenshots). • It enables end-users (students) to retrieve on demand via the Internet pre-recorded lectures from a Web browser in her/his Laptop or Tablet or Smartphone without any add-ons. • It is an easy to use toolkit, which provides significant degrees of freedom in indexing, selecting and editing of recorded lectures. • Due to its implementation as a WordPress plugin, SeLCont can be easily integrated to any LMS that implements the LTI standard. • It can be used as a standalone platform or integrated within a learning ecosystem like Up2U so that end-users can further profit from digital advances in education.
- 13. The SeLCont Initiative • Development: Network Management & Optimal Design Laboratory (NETMODE), School of Electrical & Computer Engineering, National Technical University of Athens (NTUA): www.netmode.ntua.gr • SeLCont S/W: Wordpress plugin & Windows screen capturing tool. Also available in https://github.com/netmode/selcont under GNU GPL • Partial support: Up2University H2020 Research & Innovation EU Project, www.learn.up2university.eu • Partial support: Institute of Communication & Computer Systems (ICCS) www.iccs.gr • Partial support: NTUA Unit for Innovation & Entrepreneurship (ΜΟΚΕ) www.mke.ntua.gr • In collaboration with: NTUA Network Operations Center (NTUA NOC) www.noc.ntua.gr • Complementarity: NTUA Academic Open Courses (NTUA AOC) www.aoc.ntua.gr
- 14. Thank You!