Codes, Peers and MatesMedia processing meets future

networks

EU Workshop on thematic priorities in

Networked Media 

BrusselsJanuary 19th 2010

Ebroul IzquierdoHead of Multimedia & Vision GroupQueen Mary University of London

Slide 2

Statement• Networked media and Future Internet is

moving towards a combination of available (SotA) and new technology

• Research should focus on• Emerging innovative ideas and approaches• Integration of these with available techniques and

paradigms

• The following are four SotA and emerging technologies that should be considered when defining thematic priorities in Networked Media Network Coding

Scalable

Coding

Peer to Peer

Social Network

s

Slide 3

Thematic priorities in Networked Media

• Intelligence at network nodes

• Scalable content coding

• Considering social connections and implications

• Facilitating P2P communications

Temporal

scalability

Combined

scalability

SVCScalable bit

stream

Spatial scalabilit

yQuality

scalability

Slide 4

Intelligence at the nodes• Current nodes (routers) just store and forward packets• There is almost no “processing” at intermediate nodes• Information-theoretic limits can be overcome by allowing

nodes to perform non-trivial operations on packets• Network coding :

• puts more “intelligence” at the nodes• execute coding operations on content, in addition to routing• enables new communication systems architectures• a very promising approach for re-designing future networks

and substantially improve their performance• allows trade-off communication capacity against comput. costs

• It brings significantly benefits in terms of throughput, reliability and fault tolerance

Slide 5

The Internet

Network bottlenec

k

Slide 6

The Internet with Network Coding

+= O

= -

= -

7

Desktop PC(LAN)

SDTVreceiver

HDTVreceiver

Multicastrouter

UMTS mobile

SourceScalable videoencoder

Laptop PC(dial-up)

Videoserver

DVB/ UMTSgateway

Multicastrouter

Cinema projector

EncoderExtractorDecoder Scalable

content coding adaptable to:• heterogeneous networks • dynamic traffic• end user devices

8

Social P2P technology

• Social network analysis• Mapping and measuring relationships and flows

between people, groups, organizations, etc.• The nodes in the network are the people or groups• The links show relationships

P2P networking protocolsBitTorrent, Tribler

9

• Temporal tag integration (learning)• Temporal generalization (tag a frame given tagged

neighboring frames)• Temporal segmentation (into tag-based shots)

With added value services/applications

Slide 10

Conclusion• In defining thematic priorities in Networked

Media, a combination of available (SotA) and new technology should be considered

• Research should focus on emerging innovative ideas and their combination with available techniques and paradigms

• Thus, thematic priorities in Networked Media should include

Network Coding

Scalable

Coding

Peer to Peer

Social Network

s