International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Hsien-Chou Liao*, Ming-Ho Pan, Min-Chih Chang, and Kun-Wei Lin

Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taiwan, R.O.C.


 

Download Citation: |
Download PDF


ABSTRACT


For automatic recording of the traditional lecture with a wide blackboard by using a Pan-Tilt-Zoom (PTZ) camera, a system, called ACRS (After Class Reviewing System), was proposed. From the point of view of students reviewing the lecture, the handwritten data is more important than the video of the lecturer. So, the handwritten data and the lecturer were considered together to record a lecture most suitable for student review. In the experimental study, the video recorded by ACRS was compared with that recorded manually by a cameraman. About 83% of the video time was close to the video recorded manually and suitable for review by students.


Keywords: Lecture recording; automatic lecture tracking; video recording; object tracking.


Share this article with your colleagues

 


REFERENCES


[1] Nagai, T. 2009. Automated Lecture Recording System with AVCHD Camcorder and Microserver. Presented in Special Interest Group on University and College Computing Services (SIGUCCS) 2009 Fall Conference (SIGUCCS'09), ACM, St. Louis, Missouri, USA, 2009, 47-54.

[2] Vasenev, A., Zylka, J., Ecker, M., and Müller, W. 2011. The LernLabor System. Presented in 2011 IEEE Global Engineering Education Conference (EDUCON'11), IEEE, Amman, Jordan, 2011, 953-959.

[3] Zupancic, B. and Horz, H. 2002. Lecture Recording and its Use in a Traditional University Course. Presented in the Seventh Annual Conference on Innovation and Technology in Computer Science Education (ITiCSE'02), ACM, Aarhas, Denmark, 2002, 24-28.

[4] Winslow, A., Tung, Q., Fan Q., Torkkola, J., Swaminathan, R., Barnard, K., Amir, A., Efrat, A., and Gniady, C. 2009. Studying on the Move – Enriched Presentation Video for Mobile Devices. Presented in the 2nd IEEE Workshop on Mobile Video Delivery (MoViD'09), IEEE, Rio de Janeiro, Brazil, 2009, 6 pages.

[5] Dickson, P. E., Arbour, D. T., and Gentzel, A. 2010. Evaluation of Automatic Classroom Capture for Computer Science Education. Presented in the 15th Annual Conference on Innovation and Technology in Computer Science Education (ITiCSE'10), ACM, Ankara, Turkey, 2010, 88-92.

[6] Dickson, P. E., Adrion, W. R., and Hanson, A. 2006. Automatic Capture of Significant Points in a Computer Based Presentation. Presented in the Eighth IEEE International Symposium on Multimedia (ISM'06), IEEE, San Diego, CA, USA, 2006, 6 pages.

[7] Dickson, P. E., Adrion, W. R., and Hanson, A. R. Whiteboard Content Extraction and Analysis for the Classroom Environment. Presented in the Tenth IEEE International Symposium on Multimedia (ISM'08), IEEE, Berkeley, CA, USA, 2008, 702-707.

[8] Lin, Y. T., Tsai, H. Y., Chang, C. H., and Lee, G. C. 2010. Learning-focused Structuring for Blackboard Lecture Videos. Presented in the 2010 IEEE Fourth International Conference on Semantic Computing (ICSC'10), IEEE, Berkeley, CA, USA, 2010, 149-155.

[9] Friedland, G. and Rojas, R. 2006. Human-Centered Webcasting of Interactive-Whiteboard Lectures. Presented in the Eighth IEEE International Symposium on Multimedia (ISM'06), IEEE, San Diego, CA, USA, 2006, 6 pages.

[10] Wallick, M. N., Rui, Y., and He, L. 2004. A Portable Solution for Automatic Lecture Room Camera Management. Presented in the 2004 IEEE International Conference on Multimedia and Expo (ICME'04), IEEE, Taipei, Taiwan, 2004, 4 pages.

[11] Rowe, L. A. and Casalaina, V. 2006. Capturing Conference Presentations. IEEE Multimedia, 13, 4: 76-84.

[12] Cavallaro, A., Chandrasekera, R., and Taj, M. 2007. Hands-on Experience in Image Processing: the Automated Lecture Cameraman. Presented in the 2007 International Conference on Acoustics, Speech, and Signal Processing (ICASSP'07), IEEE, Honolulu, Hawaii, USA, III-721-724.

[13] Debevc, M. and Kosec, P. 2007. Equal Study: Lecture based Automated Video Recording System for All. Presented in the Interactive Computer Aided Learning Conference (ICL'07), Villach, Austria, 2007, 8 pages.

[14] Lampi, F., Kopf, S., Benz, M., and Effelsberg, W. 2006. A Virtual Camera Team for Lecture Recording. IEEE Multimedia, 13, 4: 58-62.

[15] Zhang, C., Rui, Y., Crawford, J., and He, L. W. 2008. An Automated End-to-End Lecture Capture and Broadcasting System. ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM), 4, 1: 23 pages.

[16] Wei, J. H., Wang, L. P., Li, M. Y., and Wang, Y. W. 2009. Advantages and Deficiencies of the Automated Multimedia Lecture Recording System in Lecture Video Production. Presented in the 2009 International Forum on Computer Science-Technology and Applications (IFCSTA'09), IEEE, Chongqing, China, 2009, 271-273.

[17] Chou, H. P., Wang, J. M., Fuh, C. S., Lin, S. C., and Chen, S. W. 2010. Automated Lecture Recording System. Presented in 2010 International Conference on System Science and Engineering (ICSSE'10), IEEE, Taipei, Taiwan, 2010, 167-172.

[18] Hayden, D. S., Zhou, L., Astrauskas, M. J., and Black, J. A. 2010. Note-taker 2.0: the Next Step Toward Enabling Students Who Are Legally Blind to Take Notes in Class. Presented in the 12th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS'10), ACM, Orlando, Florida, USA, 2010, 8 pages.

[19] Ranjan, A., Birnholtz, J., Henrikson, R., Balakrishnan, R., and Lee, D. 2010. Automatic Camera Control Using Unobtrusive Vision and Audio Tracking. Presented in Graphics Interface (GI'10), ACM, Ottawa, Ontario, Canada, May 31th to June 2nd, 2010, 8 pages.

[20] Sonka, M., Hlavac, V., and Boyle R. 2007. “Image Processing, Analysis, and Machine   Vision”. third Ed., Thomson Learning, 180-181.


ARTICLE INFORMATION


Received: 2013-09-17
Revised: 2014-10-06
Accepted: 2014-10-15
Available Online: 2015-03-01


Cite this article:

Liao, H.C., Pan, M.H., Chang, M.C., Lin, K.W. 2015. An automatic lecture recording system using Pan-Tilt-Zoom camera to track lecturer and handwritten data. International Journal of Applied Science and Engineering, 13, 1–18. https://doi.org/10.6703/IJASE.2015.13(1).1