• iDVQM – In-Service Digital Video Quality Metric

Continuous   quality   measurement   of   picture   reception   in   digital   television   is significantly  important  and must  be provided  by  the  service provider   in  order   to ensure that the delivered pictures are perceptually in good quality. When the quality of reception in the viewer side is declined, the digital television service provider must be able to detect the problem quickly, so they may take prompt action to recover from the problem.  Picture quality  reduction  in  the customer  side  is usually caused by disturbance   in   transmission   channel.   Moreover,   the   transmitted   pictures   are compressed for bandwidth efficiency. As a consequence of compression process, the transmitted   video   data  become   very   sensitive  to  noise   during  transmission.  The service   provider   should   continuously  monitor   the   transmission   channel,   so   that adaptation could be taken to adjust coding/transmission parameters to cope with the channel   conditions.   This   technique   is   known   as   link   adaptation,   which   sends feedback  information  to  the  transmitter  in order  to compensate with  the change  in channel conditions.  Link adaptation can be done manually or automatically, which is based on feedback information sent through feedback/reverse channel from the receiver. Generally, link adaptation uses information, which is acquired from quality measurement based on signal-to-noise ratio (SNR), bit error rate (BER) and frame error rate (FER) or also called metric.  However,   it   is proven  that   the above metrics does not  correlate well with viewer’s perception which may lead to perception gap between service provider and customers in assessing quality. This gap will end up with customer insatisfaction to the provided services. Therefore, quality metric that takes human perception into accounts  is  required.  Another  problem  is  that   the unavailability of  objective video quality metric which can be operated in-service,with low overhead and also accurate. In order  to overcome  the above problem, perception-based objective quality metric will be designed in this research, which will be called In-Service Digital Video Quality Metric  (iDVQM).  The  iDVQM will  be  integrated with digital   television  transmission system.   Feedback,   as   a   result   of   continuous measurement   taken   in   customer premises, will be used to maintain the quality levels of distribution. Based on iDVQM value,   digital   television   service   provider  may   adjust   the   related   parameters   to maintain quality in order to meet viewer’s expectations. In   order   to   achieve   the   above   goals,   prototype   of   service   quality  measurement equipment  for digital  television based on  iDVQM will  be produced in this research. The equipment  will  be  installed  in customer premises and also  in service provider side.  Both equipments  measure  video quality  during  transmission and  reception, which will be compared to produce overall quality.

This project is fully funded by the Ministry of Research and Technology, The Republic of Indonesia for the duration of 2 years (2010-2011).

  • VHSR-1 – ViBoRG Humanoid Soccer-playing Robot

In this project, a Humanoid Soccer-playing Robot using single camera as the vision sensor will be developed. The possibilities of using stereovision will also be investigated. The robot platform used in this project is Robonova-1. This project aims to increase the degree-of-freedom (DOF) and also the size of Robonova-1 to produce smooth motion, quick response and movement, and also to improve its stability and strength. The robot should be able to find the ball, to approach it or to dribble it, to find the goal, and to kick the ball to the goal. Obstacle avoidance mechanism must also be designed in order to avoid collision with the opponent’s robot. The robot specification follows the RoboCup rules and regulations.

This project is fully funded by the Gunadarma University.

  • AVACS – Autonomous Vehicle for Aero-Cargo Service

The AVACS Project aims to design and to build a prototype of flying robot using aero-model helicopter which is capable of flying autonomously from one-point to predefined destination point by using sensors and navigation systems. The autonomous helicopter will be able to carry small cargo, such as envelopes and small packages, from the sender to the receiver in order to avoid heavy road traffic in the major capital cities. The activities from all helicopters will be monitored from the ground which act as air traffic control (ATC). The flying distance will be depended upon the type of the helicopter and the range of the communication devices.

This project is in the very early stage. Project funding schemes are welcome.

  • UG-ROV – Underwater Remotely-Operated Vehicle (UROV)

UG-ROV Project aims to design and to build is a prototype of  underwater remotely-operated vehicle (UROV). The UG-ROV is capable of  working on a number of tasks, such as observation, inspection, and rescue. The UG-ROV will be equipped with lights and camera for underwater recording and navigation. A combination of static and dynamic diving system will be implemented to deal with many different situations.

This project is still in the initial stage.  Project funding schemes are welcome.


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