Broadcast
of Digital TV
Funded by the Danish
Research Council for Technology and Production Sciences, grant no.
274-07-0383
Abstract
The switchover from analog TV broadcast to digital TV broadcast has
begun. There are several reasons for going digital. Most notable is the
introduction of high-definition (HD) TV, which gives rise to major
audio-visual quality improvements over the existing standard-definition
(SD) TV. Another reason is that of getting more TV channels, not to
mention the numerous added services made available through interactive
TV.
With this project we aim at developing a new network coding scheme for
joint compression and broadcast of digital TV signals. Specifically, we
take advantage of the fact that different consumers have different
bandwidths and encode the TV signal into several descriptions for
simultaneously broadcast. Consumers with a low bandwidth will only
receive subsets of these descriptions and the larger their bandwidths
the more descriptions they receive. Any arbitrary subset of these
descriptions can be independently decoded. Moreover, the quality of the
decoded signal depends only upon the number of received descriptions
and as such not on which descriptions are received.
News
[2010-10-28] Live demonstration of Network Sound technology,
where two orchestras are playing together in real-time, via the
internet.
[2010-09-20] Dr. Milan Derpich from Universidad Tecnica Federico Santa Maria, Valparaiso, Chile, is visiting.
[2010-09-11] Attending the 2nd IFAC Workshop on Estimation and Control of Networked Systems (NecSys'10), Annecy, France.
[2010-08-23] Part of the organizing team behind the European Signal Processing Conference (Eusipco) 2010.
[2010-06-13] Attending the IEEE Internation Symposium on Information Theory (ISIT) 2010, Austin, Texas.
[2010-06-08] Dr. Daniel E. Quevedo from University of Newcastle, Newcastle, NSW, Australia, is visiting.
[2010-04-22] Gave two lectures related to multiple description coding
and broadcast of digital tv at Universidad Tecnica Federico Santa
Maria, Valparaiso, Chile.
[2010-04-19] Gave a seminar related to state estimation over network at
Universidad Tecnica Federico Santa Maria, Valparaiso, Chile.
[2010-03-23] Attending the IEEE Data Compression Conference (DCC) 2010 in Snowbird, Utah, USA.
[2010-03-14] Attending the IEEE International Conference on Acoustics,
Speech, and Signal Processing (ICASSP) 2010 in Dallas, Texas.
[2010-04-01] Invited to Universidad Tecnica Federico Santa Maria, Valparaiso, Chile, for one month.
[2010-02-06] Invited to participate in the Information Theory and Applications workshop (ITA), at UCSD, USA.
[2010-11-16] Gave a seminar on Causal Rate Distortion Theory at Tel Aviv University, Tel Aviv, Israel.
[2009-11-01] Visiting Tel Aviv University, Tel Aviv, Israel, for a period of one month.
[2009-05-26] Attending the Kick-Off Meeting for Danish Sound Technology Network, Copenhagen, Denmark.
[2009-04-18] Attending the IEEE International Conference on Acoustics,
Speech, and Signal Processing (ICASSP) 2009 in Taipei, Taiwan.
[2009-03-15] Attending the IEEE Data Compression Conference (DCC) 2009 in Snowbird, Utah, USA.
[2009-02-18] Gave a seminar on "Multiple Description Audio Coding" at
the University of Newcastle, Newcastle, NSW, Australia.
[2009-02-01] Visiting Newcastle University, Newcastle, NSW, Australia, for a period of one month.
[2008-10-24] Prof. Ram Zamir, Tel Aviv University, Tel
Aviv, Israel, is visiting the MISP group at Aalborg University to take
part in work within the project "Broadcast of Digital TV". The main focus is on Multiple-Description Coding by Delta-Sigma Quantization.
[2008-10-02] Gave a talk entitled "multiple-description audio
coding for robust streaming over unreliable networks", at GN ReSound,
Copenhagen, Denmark. This talk was part of the one day seminar "Audio Coding and Streaming", which is organized by the ASIP-NET.
[2008-07-16] Invited by Prof. Anders Ahlen to visit the
Department of Signals and Systems, Uppsala University, Uppsala, Sweden.
The main focus of the research was on predictive control for state
estimation over wireless sensor networks. This is joint work with Daniel Quevedo.
[2008-06-01] Start date of project
[2008-01-24] Jan Østergaard received the Danish
Independent Research Council's Young Researcher's Award (Young Elite
Researcher).
[2007-11-15] Received a fellowship from the Danish Research
Council for Technology and Production Sciences for the project
entitled "Broadcast of
Digital TV". The grant covers a three year post-doctoral
position from June 2008 until May 2011.
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