Thesis subjects 2015 - 2016telescript.denayer.wenk.be/~eaict/masterproef/info15/televic_1516.pdf ·...

5/2/2015 1

Thesis subjects 2015 - 2016

Web based interface for business processes .................................................................................. 2

Sensor Data Logger .......................................................................................................................... 3

Plastic sensor design........................................................................................................................ 4

Python - SQL test terminal development ........................................................................................ 5

Colour Correction automation ........................................................................................................ 6

Simulation heat guiding in TFT- displays ......................................................................................... 7

Harvesting electric power from the electromagnetic leakage field of a train motor. .................... 8

Defeating the acoustical environment of a train drivers cab .......................................................... 9

Low cost distance measurement sensor and automatic acoustical test for passenger intercom

panel .............................................................................................................................................. 10

Rail track recognition by front facing camera to augment positioning data ................................ 12

Implementation of a pure android application which interfaces with an osgi based client/server

application. .................................................................................................................................... 13

Sandboxing of a modular application on an embedded device .................................................... 14

HTML5 Passenger Information Visualizer ..................................................................................... 15

Rule-Based Reasoning for Legible Digital Signage Displays on Trains ........................................... 16

HTML5 reporting tool for teachers ............................................................................................... 17

Multiple Choice Generator for Edumatic from handbooks ........................................................... 18

Exercise Generator for Edumatic from handbooks ....................................................................... 19

Generate a cabling checklist using Autocad .................................................................................. 20

Advanced Interference Detection Module .................................................................................... 21

Collaborative Use Case in Conferencing (Shared Document editing) ........................................... 23

FaceTracking_FaceRecognition in a Conference context .............................................................. 24

Pluggable web-based signage for conference purposes ............................................................... 25

Hardware Accelerated Video Annotation using OpenCL .............................................................. 27

Performance evaluation of MESH protocols using network simulation ....................................... 28

RemoteConferencingSecurity Proof of Concept ........................................................................... 30

5/2/2015 2

Web based interface for business processes

The intention of this thesis is to design a conversion application which converts SysMl diagrams into a

web based interface taking the linking of different diagram’s into account.

The diagrams represent business processes and have been designed in a SysMl context which provide a

graphical SVG format in combination with XML data. These diagrams are linked to each other by

references providing in more detailed information.

The diagrams are used to explain people how to work, which steps to take and what the output should

be. By making the diagrams interactive over a web application, this data can be brought closer to the

end-user increasing the company’s performance and general quality level.

One of the methods thought of to convert the SysMl diagrams is based on Javascript (ref. D3 data driven

documents).

This thesis will not only learn you a lot of technical aspects, it will also bring you how a company is

organized.

Televic Company/Department:

Televic Rail is a leading supplier in Europe, China and India of passenger information systems and control systems in trains and trams. Nature of the work

Level Specialty Type of work. Location Type Num of

students

Bach. /

Master

ICT / SW

design

Research: 30%

Implem.: 40%

Experim.: 30%

School / Televic Product design 1/2

5/2/2015 3

Sensor Data Logger

The intention of this thesis is to design a railway compliant datalogger which can be mounted on the

bogie of a train to capture and store the signals from different sensors, contacts and CAN systems into a

mass memory. In order to have access to this data, there’s a need for multiple interfaces like Ethernet,

WIFI and CAN. The datalogger should also be provided with an output contact to trigger an external

system in case certain events occur. The GPS interface is needed to keep track of the vehicle at all times.

The entire system should be battery powered and have an autonomy of one week. Datalogger

Sensor Analog input

Analog input

Analog input

Analog input

CAN input

Digital input

Digital input

Digital input

Digital input

Digital input

FPGA

Controller

Ethernet

CAN

WIFI

Digital output

Power conversion and battery

Mass memory

Sensor

Sensor

Sensor

Contact

Contact

Contact

Contact

CAN system

Contact

GPS antenna GPS receiver

Televic already has a number of functional blocks available that could be used for this thesis. Based on

these block, the architecture of the design can be refined, electronic schematics can be drawn and a PCB

can be made. During the board assembly, VHDL and embedded SW can be designed to provide the

acquisition and communication functionality. During the prototyping, the electronics can be mounted

into a robust housing which will also require some investigation. In the testing phase, sensors will be

coupled to the logger and data transfer will have to be set up with a PC by making use of the external

interfaces.




students

Bach. /

Master

Embedded

electronics

design, VHDL

Research: 30%

Implem.: 40%

Experim.: 30%

School / Televic Product design 2

5/2/2015 4

Plastic sensor design

The intention of this thesis is to design a railway sensor, based on existing electronics in an aluminum

die-cast housing, in order to make it lighter, smaller, cheaper, more robust and provided with visual

indicators and marketing assets.

The sensor should preferably be produced by making use of low pressure molding, but other techniques

can also be investigated. The integration of light-transparent layers and the provisioning of brand colors

is considered as a very nice added value.

An important aspect is the integration of sensor connectors into the plastic and the provisioning of

robust mounting positions.

Also the connected sensor wiring harness should be investigated in order to provide in an efficient

system solution.

Of course, after the design, the prototypes should be tested on a number of aspects like ingress

protection, temperature variation, shock and vibration, impact and salt-mist.




students

Bach. /

Master

Industrial

design

Research: 30%

Implem.: 40%

Experim.: 30%


5/2/2015 5

Python - SQL test terminal development

The intention of this thesis is to design python SW to allow interaction with production data during the

manufacturing process as well as during maintenance. At this moment, a python based generic test

platform exists which allows to perform automatic tests and MySQL database storage but needs to be

provided with additional functionality.

The current tool can only run on a full-blown test tower, steering the automatic test equipment. A first

need is to add flexibility, so the tool can also run on a stand-alone PC with hand-controlled equipment.

Preferably automatically discovering the attached HW, loading only the needed drivers, but still enabling

all the logging capabilities.

When errors are discovered, or when in maintenance/repair mode, the existing automatic test sections

should be made interruptible, giving the operator decent debugging possibilities. Extra logging

capabilities must be activated in that case, allowing accurate tracking of the lifecycle of each individual

product.

Additionally, an interface should be designed to provide a complete overview of a manufactured device.

Based on the serial number, the complete configuration (HW, SW, versions) can be retrieved from the

database. When combined with the test results from the database, a full conformity report can be

generated for the customer, which can be delivered as part of the packing documentation.

Finally, a statistics interface is needed to extract specific article data concerning production yield,

frequently observed repair failures, frequent failing test segments Production timing, …




students

Bach. /

Master

ICT / SW

design

Research: 30%

Implem.: 40%

Experim.: 30%


5/2/2015 6

Colour Correction automation

Description:

Televic Rail is a leading supplier of passenger information systems in the railway business. Our product

portfolio contains different types of displays. In some of these displays, 2 different types of LCD screens

are combined. As they have different characteristics, they are bound to display different colours upon

being sent the same colour code (e.g. #FFFFFF might give a bluish white on one screen, a greenish

white on the other) and display them with a different intensity. To cancel this effect, the characteristics

of both screens are measured and the colour values sent to each screen are adjusted so they both

appear the same.

The purpose of this master thesis is to optimize the current algorithms and implement an efficient

automated process for colour correction.

The first step is a study and optimisation of the current algorithms used to measure the

screen characteristics and calculate the parameter files (used to recalculate the output).

The next step is an implementation of a configurable stand-alone python program, that

reads the characteristics of the screens, calculates the necessary corrections and outputs

the parameter files for storage in the display.

The last step is to integrate automated reporting of parameter files for traceability in a

maintenance database.

Of course, this master thesis will be supported by a proof-of-concept on a real display.




students

Master 4y. ICT,

electronics

Research: 30%

Implem.: 50%

Experim.: 20%

Televic site Software 1

5/2/2015 7

Simulation heat guiding in TFT- displays

Description:

Currently we solve thermal issues in our electronica housings via trial and error on a prototype unit.

The implemented solutions make use of thermal pads that conduct the internal generated heat to the

housing.

The purpose of this thesis is to simulate the thermal behavior of one of our products, a TFT display.

The thermal problem is dual : in the summer the display must be kept as cool as possible to stay within

the operational range of the TFT panel. But in the winter, the display must be heated prior to start up

in order not to damage the TFT panel. An optimal solution must be presented by making a complete

simulation of the display.

In addition to the thermal pads, other forms and methods of passive cooling shall be investigated to

allow us to do the thermal management of our products cheaper of more efficiently.

A state of the art TFT display with temperature measurement equipment will be available to verify

the simulation towards the reality.


Televic Rail is a leading supplier in Europe, China and India of passenger information systems and

control systems in trains and trams.

Nature of the work


students

Master Research: 50%

Implem.: 25%

Experim.: 25%

School/

Televic site

Product design 1 or 2

5/2/2015 8

Harvesting electric power from the electromagnetic leakage field of a train motor.

Description:

Mechatronics sensors are mostly located on difficult accessible places. So wireless sensors are a must,

but they require power. Charging batteries create a huge maintenance cost, wired power is too

expensive. As such there is a need of harvesting power. Current technologies are using vibrations, but

as the trains needs to be vibration less, there is not a lot of power that can be harvested. Another way

could be by capturing the leakage power of the electro motor of the drive-train. These motors have

multiple kilowatts of power, so any leakage is expected to be also high in power.

The intention of this thesis is to design a wireless railway sensor that harvests power from the

electromagnetics leakage field of the electro motor of the drive-train of a train.

The first part of this thesis is related to the study of multiple aspects of the harvesting technology via

electromagnetics. How it can be implemented. What about the efficiency? What types of topologies

can be defined? What kind of power storage? Power capturing antenna? This is followed by a selection

of a list of concepts that can be used in a railway environment.

A second part will be the design and testing of one or multiple concepts. The different concepts can

then be compared with each other on multiple aspects:

- Efficiency

- Complexity

- Power storage type

- Antennas

- …

Finally, the optimal concept will be defined, based on the experiences obtained from the evaluation of

the selected concepts.




Nature of the work


students

Master electronics Research: 30%

Implem.: 40%

Experim.: 30%

Televic site HW 1

5/2/2015 9

Defeating the acoustical environment of a train drivers cab

Description:

A train driver’s cabin is a very challenging environment for an acoustical system, e.g. a microphone

used to perform a public announcement from the driver to the passengers in the saloon area. Due to

the high level of background noise (wind noise, noise of wheels on the track, HVAC noise, structure

born noise…) the pick-up of the speech signal is difficult. Furthermore, the driver’s cab is small,

completely made of highly reflective materials, and the acoustical isolation between the saloon area

and the driver cab can be very limited.

As our customers request more often “in dashboard” microphones, freeing the driver’s view, the

speaking distance to the microphone increases. This diminishes the use of traditional methods such as

close talking and directional microphones and noise measurement microphones to lower the noise

pick-up and increase the margin to acoustical feedback.

The goal of this thesis is to investigate, design and evaluate a microphone system that makes the use

of “in dashboard microphones” possible in this environment.

First, an investigation of the state-of-the-art noise suppression techniques should be

made.

Secondly, beam forming algorithms should be investigated to create a “sweet spot” for

speech pick-up.

Finally, a proof of concept should be made to support the evaluation of the developed

system.




Nature of the work


students

Master 5j DSP Research: 60%

Implem.: 20%

Experim.: 20%

Televic site Hardware /

software

1

5/2/2015 10

Low cost distance measurement sensor and automatic acoustical test for passenger

intercom panel

Description:

In an acoustical system, the distance of the sound source to the microphone input is a critical

parameter in order to create reliable sound system. By knowing the distance, one could set the

parameters such as noise floor and limiting threshold rotation point which will lead to better

intelligibility and reducing the Larsen effect. This could be useful in e.g. an emergency passenger

intercom panel.

To preserve the functionality of such an emergency device, the performance of this acoustical system

should be tested. For this, build in tests (BIT) could perform some diagnosis automatically. To test the

acoustical part, the frequency response from the loudspeaker to the microphone of the intercom

device can be measured.

The goal of this thesis is to design a low cost distance measurement interface (infrared, ultrasonic, etc.)

for Cortex®-M0 µ-controller. Secondly, an algorithm is needed to translate the distance data into

settings for an audio conditioning DSP processor. A third part would be implementing a loudspeaker

to microphone transfer function measurement and investigate alternative diagnosis methods, taking

into account the possible use of MEMS microphones.

At last, a proof of concept prototype will be made based on existing emergency passenger intercom

panel.




5/2/2015 11

Nature of the work


students

Master 4j electronics Research: 15%

Implem.: 70%

Experim.: 15%

Televic site Software/hardware 1

5/2/2015 12

Rail track recognition by front facing camera to augment positioning data

Description:

The intention of this thesis is to determine on which track the train is driving. This information

will increase the accuracy for the localization system of a train. The recognition of the track

will be done by means of a front facing camera.

The first part of the thesis is related to research concerning required methods, video analytics

and associated signal processing with a clear definition of the hardware platform

requirements including CCTV camera specifications. As a result a concept should be selected

that can be used in a railway environment.

The second part will be the design and testing of the concept. This includes the

implementation of the algorithms to detect the rail tracks and relate to network maps and

global navigation satellite systems (GNSS) position. The information should demonstrate more

accurate location.

In addition detection of railroad switches could also be investigated with the same type of

classifier algorithms.




Nature of the work


students

Master electronics ;

ICT

Research: 30%

Implem.: 40%

Experim.: 30%

Televic site SW 1

5/2/2015 13

Implementation of a pure android application which interfaces with an osgi based

client/server application.

The purpose of this master thesis is to develop a pure android application (java) which will interface

with Televic’s iSync application. iSync is a Televic developed client/server application which offers

one solution to manage the information transfer from any system between control centers and

running trains. It is responsible for fleet management, configuration management, update

management and maintenance management of both on-board Televic devices and on-board 3rd party

devices.

The server side of the Televic iSync application contains a management user interface for

visualization and configuration of all provided services. Another presentation of all these services

could be done by means of an android application, and this is exactly what should be done for this

thesis. A usability study has to be done to figure out how to present huge data amounts on mobile

devices. Also some research is needed to look for the best interface/integration with an existing osgi

application using remote services.




Nature of the work


students

Master IT, ICT Research: 20%

Implem.: 60%

Experim.: 20%

School

Televic site

Software in JAVA,

Android, REST, OSGI

1

5/2/2015 14

Sandboxing of a modular application on an embedded device

Televic Rail builds different train applications like for example digital signage TFT displays and audio

applications which give passengers valuable information about their journey on the train.

The different train applications can be updated by a software management system. This software

management system is a modular OSGi JAVA application which runs on a Linux Operating System.

Within this modular software, there are internal software components (M1 – M4) but also external

software components of 3rd party vendors (EX. M1 – EX. M2).

The goal of this thesis is to make sandboxing possible on the embedded device. It should be possible

to isolate the different external modules from the internal modules (without complete isolation). The

isolations could be a limitation of the available software interfaces inside the application.

Next to this, there should be a restriction on the access to the limited resources of the embedded

device: the memory usage, the CPU usage, the disk usage and the network usage…

This sandboxing will improve the security of the complete system.

The first part of the thesis will be research on different solutions for this problem. Possible solutions

could be a separation in the modular OSGi software or a complete virtualization of the operating

system by using for example Linux Containers LXC.

The second part of the thesis will be the implementation and integration of the different solutions in

the existing application. During this phase, the different solutions will be tested and compared.




Nature of the work


students


Implem.: 50%

Experim.: 20%

School

Televic site

Software in JAVA

OS Linux

Linux Containers LXC

1

5/2/2015 15

HTML5 Passenger Information Visualizer

Description:

For this project you will develop a single page application to replace an existing visualizer. This

application will be used to visualize passenger information. The input off this application is a set of

different XML-templates which are pushed to the device. Each template describes the layout of

the desired screen.

This application will be developed in javascript/HTML5/... and must be multi-platform

(Linux/Android/IPAD/PC/...). This application will also have a 2-way communication channel with

the backbone

You will make use of all available means in respect to acceleration, performance and optimized

code. Some custom animated widgets can be generated.

An extension can be foreseen to generate data towards an embedded controller. This will also

make use of the same javascript/HTML5/...




Nature of the work


students

Bachelor or

Master

(good

HTML5

programmer)

IT, ICT Research: 10%

Implem.: 70%

Experim.: 20%

Televic site Software 1 - 2

5/2/2015 16

Rule-Based Reasoning for Legible Digital Signage Displays on Trains

Description:

Can you imagine being aboard a train

and not being able to read the

announcement messages on the on-

board displays? The font is too small,

the contrast is not sharp enough, the

text is scrolling too fast…; it’s every

train operator’s nightmare.

In order to ensure legible digital

signage, several display parameters

(such as display technology, intensity,

contrast) and the layout of the content

to be shown need to adhere to certain

restrictions. Moreover, regulatory bodies tend to add and remove restrictions frequently over the

years.

The purpose of this thesis is to develop an intelligent software application that makes use of rule-

based reasoning in order to ensure legible digital signage on a variety of train display types. The

following steps are planned:

1. Reasoning assessment

a. Study of appropriate rule-based reasoning techniques.

b. Translation of the display parameter restrictions in an easily configurable and

adaptable rule-set.

2. Development of the rule-based reasoning application.

3. Integration with content management system.

a. Interfacing with an existing content management system and the corresponding

database.

b. Generate evaluation criteria from the database in order to support the reasoning

application.

Televic Company/Department: Televic Rail



Nature of the work


students

Master IT, ICT,

electronics

Research: 40%

Implem.: 40%

Experim.: 20%

School/ Televic

site

Software/hardware 1

5/2/2015 17

HTML5 reporting tool for teachers

Description:

Edumatic is an online assessment tool, developed by

Televic Education. Reports of each assessment are

available in a reporting module in the platform. There

are multiple advanced settings to generate different

views. Report-exporting is also possible. The

frontend is created with Adobe Flex technologies.

The main objective of this internship is to create a

html5-version of this existing reporting module.

The objectives:

• Evaluate the use and problems of the current

reporting module (developed in Flex) and

compare with other evaluation tools.

• Rethink & design a new flexible reporting module, pay attention to the user experience: details

do make a difference

• Develop the new reporting module with html5 technologies

• Pay attention for performance

Required features:

• Teacher has a dashboard where there is an overview of reports / activities / …

• Flexible: reports can be filtered, generated and exported as wanted

• Easy external access from other custom applications to the (filtered) reporting module.

• Attractive & responsive design

Nice to have - features:

• “Real-time” monitoring for the teachers, pushing notifications, while an assessment is ongoing

• Customizable dashboards for students and teachers

Extra:

• Dashboard for students: teacher can send reports to the students, with feedback.

• Dashboard for parents: teacher can send reports to the parents of students. Parents can mark

a report as “seen” or “approved”


Televic Education is part of the Televic group and develops e-learning applications, both online

(Edumatic) and offline (AvidaNet). We are a small group, so as a thesis student you will get close

guidance and support. Our connections to the universities are very broad, so academic support is not

a problem.

Nature of the work


students

MSc. IT, ICT Research:30%

Experim.: 10%

Implem.: 60%

Televic (Izegem) Software 1 (or 2?)

5/2/2015 18

Multiple Choice Generator for Edumatic from handbooks

Description:

Edumatic is an online assessment tool, developed by Televic

Education. At the moment, teachers need to manually create

exercises to use in their homeworks/exams. Because this is quite

labor-intensive, we would you like to build an automatic

exercise generator that takes the handbook (e.g. biology) and

creates multiple choice questions or fill-in-the-blank questions.

This is done by analyzing the text to find statements such as “A

spider has 8 legs”. This could be then transformed to a fill-in-the-blanks question “A spider has … legs”

or, more interestingly, to a multiple choice question: “How many legs has a spider?” and the answer

“8”. In the latter case, you also have to find suitable incorrect answers to present in the multiple choice

question (3,4,6,…).

The first step is to create simple factual statement questions. The next step is to improve this method

to find better confusables (e.g. don’t present 0, 100, 1000 legs as an alternative, but rather look in the

handbook to find different amount of legs (fly: 6, dog: 4, etc.)).

If possible we would like you to think of a way to measure how good a question is. For instance, maybe

look in the course to see how many times the word “spider” is mentioned or “legs”…





a problem.

Nature of the work


students


Implem.: 30%

Experim.: 50%

School/ Televic Software 1

5/2/2015 19

Exercise Generator for Edumatic from handbooks

Description:

Edumatic is an online assessment tool, developed by Televic

Education. At the moment, our content editor only supports

basic formatting (bold, italics, underline). The goal of this

internship is to find a suitable editor and integrate it into our

Edumatic backend (written in Flex). Adapt our player (HTML5)

and reporting (Flex) so that this advanced content can be is

properly presented.





a problem.

Nature of the work


students


Implem.: 30%

Experim.: 50%


5/2/2015 20

Generate a cabling checklist using Autocad

Description:

For each project a set of Autocad drawings is made with all the devices and their location in the

building. When delivering an installation, the technicians have to check if everything is correctly

installed according to these drawings. For the moment this is done manually and the result is not

verifiable. The purpose of this thesis to generate an electronic (excel) checklist which guides the

technicians trough all checks which has to be performed in each room. It should be possible to do

this in an efficient way on their tablet PC.

When the technician starts its final check, he can enable the logging of all his actions in the system.

After doing all the checks, this logging can be fed into the electronic checklist, which can then

automatically be completed.

As a result a report can be generated (and send to the project lead) indicating which tests have be

done successfully an which hasn’t been done or failed.

Approach:

- Check which info is available in the current Autocad drawings an how to retrieve it.

- Study the format of the logging file/database.

- Check with head of after sales how he would like to have checklist.

- Check which file format can be used on the tablets and how it can be synchronized with TLV.

- Choose the language for the program, script or app (Autocad scripting, C++, C#, ….).

- Inplement the program.

- Test the program on some sample drawings of real installations.

- Test the checklist in a real life situation (new Tlv installation).

- Make a set of rules how cabling plans should be draw, so that the program can handle them

(like naming conventions etc..)


Televic Healthcare is a leading healthcare company developing communication solutions using the

latest technology evolutions.

Nature of the work


students


Implem.: 50%

Experim.: 30%

School/ Televic

site/field

Software 1

5/2/2015 21

Advanced Interference Detection Module

Description:

Confidea is a highly reliable wireless conference system developed by Televic engineers and features

a powerful combination of technologies

This Confidea® system is making use of state-of-the-art Quad-Band wireless technologies, fault-

tolerant error correcting protocols and advanced encryption algorithms.

With systems operational in nearly 60 countries, Confidea® is the most robust and secure wireless

conference system available on the market today.

The Confidea® system contains a dedicated interference detection module making it possible to give

an overview of RF activity on all possible operating frequencies.

With the current interference detection module it is possible to monitor energy levels on different

frequencies. With this information the most suitable operating frequency can be selected and a first

level of frequency planning can be performed.

The advanced Interference detection module will offer a much richer overview of RF activity and

spectrum usage. This can be achieved by not only monitoring the signal strength but also the

protocol, the used bandwidth, duty cycle and transmission pattern. In addition, the detection module

can be extended to detect all kind of radar patterns as described in the regulatory standards. (ETSI,

FCC, PSE, …)

This would lead to a much more reliable frequency selection algorithm and offers the user an

advanced frequency planning tool.

The work comprises designing an RF PCB (or making use of existing evaluation boards) and

implementing the detection algorithms in FPGA.

5/2/2015 22


Televic Conference offers the most recent technologies for discussion systems, applications for

simultaneous translation and electronic voting systems.

Nature of the work


students

Master Electronics/RF Research: 40%

Implem.: 30%

Experim.: 30%

Televic site Hardware/RF/

EmbeddedSW

1

5/2/2015 23

Collaborative Use Case in Conferencing (Shared Document editing)

Description: In order to further improve the efficiency of a meeting, Televic has started to add

multimedia to its conference solution. Through a touch screen, delegates now have the meeting

agenda, voting results, related documents and video streams at their fingertips. Currently the

documents can only be consulted, but the goal is that delegates can also edit them, enabling a truly

collaborative and paperless meeting.

During the internship, several solutions that provide simultaneous content editing will be

investigated and evaluated. The technology that offers the best combination of performance,

security and integrability will be implemented. The preference goes to a web based (HTML5,

JavaScript) solution to match the technology that is already used in the product, which should

support the synchronization of formatted text. After having selected the most suitable technology, it

should be integrated into an existing product architecture where reliability is essential. The

demonstrator that results from this work will be used to monitor how people deal with collaborative

technology in meetings in order to further improve our products.




Nature of the work


students

Master ICT,

electronics

Research: 40%

Implem.: 30%

Experim.: 30%


5/2/2015 24

FaceTracking_FaceRecognition in a Conference context

Description: Televic Conference is currently extending its product portfolio with a range of multi media products

which is distributing as well audio/video and data inside (and outside) a meeting room.

A typical application is eg the (semi) automatic generation of a multimedia stream of a meeting.

One of the challenges for such a meeting is delivering of a high-quality view of the room and the

meeting participants.

As such, there is a need for a “face-tracking” module in the camera controller which manages the

automatic identification + positioning of the camera towards certain spectators.

At the same time, users often have to authenticate before they are allowed to participate in a voting

session. In our current conference system, users can authenticate via inserting an RFID badge. If we

integrate a web cam in the delegate hardware, we could use that web cam to authenticate the user

via face recognition. The main challenges of face recognition are:

- Develop an algorithm for comparing a face against a database of faces. The face might be bigger or

smaller than the recorded faces

- Optimize the algorithm so it can be used on an embedded processor platform

This work will focus on fine tuning face tracking algorithms based on an existing HW/SW platform

(Linux/openCV framework).




Nature of the work


students

Master ICT Research: 30%

Implem.: 40%

Experim.: 30%

Televic site Embedded software

/ PC software

1

5/2/2015 25

Pluggable web-based signage for conference purposes

Description:

In a conference environment, customization of software is very important. Televic Conference

regularly gets requests from clients who want to have different behavior, functionality or look-and-

feel of the software that is provided.

This is the main reason why this thesis aims for the research into and development of a pluggable

web-based Signage component. Signage is defined as any way to distribute data to participants of a

conference; this can be realized using large screens in the room, their own devices, … The data itself

can consist of speaker names, video streams, voting results, …

Advantages of this approach:

• The customer (usually the conference “owner” and operator) can create his own view of

existing components using drag&drop functionality.

• Web-browser are available on a lot of platforms (PC, tablet, phone, ..), so this does not limit

the places where this solution can be used.

From a technical point of view, these are the main topics and challenges:

• Investigate how a modular (drag&drop) layout of a web page can be achieved. This includes a

configuration and an operating part.

• A web-service (REST/JSON) will provide the data for a number of sample plugins.

See below for a possible resulting view of the result of dragging&dropping various components on a

canvas.




5/2/2015 26

Nature of the work


students

MSc. IT, ICT Research: 25%

Implem.: 50%

Experim.: 25%


5/2/2015 27

Hardware Accelerated Video Annotation using OpenCL

Description: A modern conferencing system has, next to voting and audio, also support for video.

This video is typically recorded by multiple wall-mounted cameras, programmed to show however is

speaking.

The delegates (the participants of the meeting) can see this video stream on their meeting device

(called the delegate unit).

This thesis researches the possibility to use OpenCL to add annotation (e.g. the name of who is

speaking) on the video. The targeted platform is an Altera Cyclone V SoC device, an FPGA with a dual

core ARM processor on board.

This thesis consists of multiple phases:

1. Study part

a. Getting acquainted with OpenCL and the tools used during the Thesis

b. Literature study of video annotation techniques

2. Architectural design phase

3. Implementation

4. Verification/Demo




Nature of the work


students

Master ICT,

electronics

Research: 40%

Implem.: 30%

Experim.: 30%

School/ Televic Software/hardware

/embedded

software

1

5/2/2015 28

Performance evaluation of MESH protocols using network simulation

Description:

A mesh network consists of a set of interconnected nodes which are able to relay data through the

meshed network. Data is distributed over the network by hopping data from one node to another

until it reaches its destination. The number of paths between source and destination of a network is

definitely not limited to one path. Mesh networks can improve reliability due to the availability of

multiple paths between source and destination but it is however hard to estimate the overall

network performance in terms of minimum, average and maximum latency, throughput, … To allow

multimedia data transmission in a reliable manner and to determine limits of the network in terms of

number of audio and multimedia channels coexisting in the network, Televic wants to investigate

mesh network protocols using a network simulation tool.

This thesis consists at first of a market survey of the existing mesh network technologies and

protocols. An overview of mesh network technologies is given and insight in mesh networking is

gained. Investigation of existing mesh technologies can further lead to possible implementations of a

mesh network for audio and multimedia distribution in a conference room.

As it requires a tremendously high amount of hardware to evaluate performance of mesh networks,

simulation is appropriate. The second part of this thesis consists of a market survey and evaluation of

existing network simulation tools like NS3 or OPNET. The simulation tool shall be used to simulate

existing network topologies to gain knowledge about simulator operation and simulation limits

continued with the evaluation of mesh protocols in terms of reliability, throughput and latency

performance which all depend on the audio and multimedia application.

A third part of this thesis consists of applying the mesh network simulation on a wireless network

model to evaluate performance of the meshed network in a wireless environment. Wireless

networks often suffer from interference from multiple devices and performance can be improved

tremendously by having multiple paths available. A challenging extension of this thesis is to analyze

dynamic behavior of the meshed nodes, i.e. nodes in motion.




5/2/2015 29

Nature of the work


students


Implem.: 33%

Experim.: 34%

School /

Televic site /

home

Software / network 1 or 2

5/2/2015 30

RemoteConferencingSecurity Proof of Concept

Description:

Televic Conference is a provider of hardware conference solutions for in rooms. Nowadays however,

meetings are less restricted by the walls of the room. Delegates cannot always be present at the location of

the meeting, people want more transparency from the government, … During this internship we want to

explore the possibilities of the new WebRTC standard to realize the streaming of audio and video from and to

the conference room. One of the most imported concerns around remote conferencing is the security aspect.

Authentication and encryption are needed to keep the meeting confidential, while in certain cases the audio

and video need to be processed to make the participant unrecognizable to protect his/her privacy. When the

basic streaming functionality is set up, these security aspects will be further studied.


Televic Conference offers the most recent technologies for discussion systems, applications for simultaneous

translation and electronic voting systems.

Nature of the work


students

Master ICT Research: 40%

Implem.: 30%

Experim.: 30%


Thesis subjects 2015 - 2016telescript.denayer.wenk.be/~eaict/masterproef/info15/televic_1516.pdf ·...

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Transcript of Thesis subjects 2015 - 2016telescript.denayer.wenk.be/~eaict/masterproef/info15/televic_1516.pdf ·...