Open Technical Lectures

The Open Technical Lecture (OTL) initiative commenced in January 2005. The lectures are organized by the Digital Systems and Media Computing Laboratory (DSMC Lab) of the School of Science and Technology of the Hellenic Open University, mostly in collaboration with IEEE (Institute of Electrical and Electronics Engineers) Greece Section, the IEEE CAS/SSC Greece Chapter and the IET (Institution of Engineering and Technology), Hellas Branch.

The main purpose of these lectures is to bring to the researcher, the engineer or the student the Engineering and Scientific views and knowledge of the expert.

OTL lectures can be attended from anywhere. The lecturers can also be situated anywhere. This gives the opportunity to have excellent lectures from very well known personalities from around the globe.

OTL lectures are open to all. You are encouraged to participate…

Date Lecturer Topic Video Presentation

All Open Technical Lectures


Date Lecturer Topic Video Presentation
01-04-2008 12:00 Dr. Virginie F. Ruiz, (University of Reading, UK) Analysis of Irregular Shapes avi pdf
21-03-2008 12:00 Dr. Nikolaos Mitianoudis Image Fusion using ICA bases avi pdf
08-12-2006 12:00 T. Ebrahimi,
(Titular Professor at EPFL)
JPSearch – An emerging standard for image search and retrieval avi pdfJPsearch docs
16-06-2006 10:00 Prof. K. Plataniotis,
(Dept of ECE,
University of Toronto, Canada)
Digital Camera Image Processing pdf
19-05-2006 16:00 Th. Varelas,
(General Manager, Theta S.A.)
An Overview of Trend and Challenges in RFIC integration avi pdf
11-04-2006 12:00 John Kikidis
(Strategic Marketing Manager, Intel Comms Infrastructure Group)
High speed analogue electronics compensate legacy enterprise fibre media impairments enabling 10Gbit/s Ethernet transmission avi pdf
17-03-2006 12:00 Dr. Christos P. Sotiriou Logic synthesis from concurrent specifications avi ppt
21-10-2005 12:00 Dr. Nikolaos Nanas
(Cooperator of Open University of England)
Nootropia: a Non-Linear Approach to Adaptive Document Filtering avi ppt
S. Tsekeridou
(Democritus University of Thrace)
MPEG-21: Enabling Universal Multimedia Access
25-05-2005 C. Psychalinos
(University of Patras)
Analogue Integrated Filters: Overview and Current Trends
01-03-2005 M. Vazyrgiannis
(University of Athens)
Data Mining from Databases and Web avi
16-02-2005 Prof. D. Nikolos
(University of Patras)
Low Power Issues In VLSI Testing avi
14-01-2005 I. Andreopoulos
Free University of Brussels
Wavelets and Recent Developments in MPEG Video avi


NOTE 1: Only Internet Explorer should be used.

NOTE 2: If you use Windows XP with Service Pack 2, you should first read the instructions at the end of this page.

Step 1

In order to attend go to:

Step 2

Type your e-mail in the field:

Email address:

Press: Attend

Step 3

Fill in the folowing info:

First name:

Last name:

Display name:

Step 4

In the first field type in the following password:

Event password: otlpass

Press: Attend

Attention: When pressing Attend then you will return to step 2. Don’t fill the fields again, automatically you will proceed to step 5.

Step 5

The Centra client (approximately 10 MBytes) is automatically downloaded into your computer. (This is done only the first time you are connected from this computer). The lound speakers and the microphone are tested.

a) Play, listen, Next

b) Record, talk for 5″ to the Mic, Listen, Next

c) Headset mode
If you have camera:

d) From the menu choose -> Tools -> Video Wizard
choose the video acquisition device
Press Next – Finish

In order to see the playback go to:

Note: Guest accounts are periodically deleted. In such a case you will have to create this again.


Service Pack 2 for Windows XP blocks the pop-up windows while browsing through Internet Explorer, you should activate pop-ups before proceeding to Centra or allow pop-ups from Centra’s Server.

  1. Go to Internet Explorer -> Tools menu and select Internet Options.
  2. Go to Privacy tab.
  3. At the windows bottom the «Block pop-ups» option should not be checked. In this way pop-ups are activated

For more information see:

Professor A. Skodras
Head of Computer Science
School of Science and Technology
Hellenic Open University
Tsamadou str. 13-15
GR-26222, Patras, Greece
Tel.: +30 2610 367522 / 367529
Fax: +30 2610 367520 / 361106