Random Research Thoughtsfrom

Distributed Multimedia Systems 2004

PEDS Presentation

Bob Kinicki

September 20, 2004

PEDS September 20, 2004

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Talk ObjectivesTalk Objectives

To present several research ideas and to trigger new, creative ideas.

To get everyone thinking about future directions.

To present futuristic applications that seem to mesh well with current PEDS research activities.

To plant the seeds for a near-future grant topic.

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Titles of Talks along our Random WalkTitles of Talks along our Random Walk

1. “Visualization for RFID/Auto-ID Initiative”

2. “Re-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media Computing”

3. “Design of Multimedia Instant Messaging System with Annotation”

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Titles of Talks along our Random WalkTitles of Talks along our Random Walk

4. “PARIS: Fusing Vision-based Location Tracking with Standards-based 3D Visualization and Speech Interaction on a PDA”

5. “TANDEM – Transmitting Asynchronous Non Deterministic and Deterministic Events in Multimedia Systems over the Internet”

6. “AudioPeer: A Collaborative Distributed Audio Chat System”

7. “A Case for A Mobility Based Admission Control Policy”

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Visualization for RFID/Auto-ID Initiative Visualization for RFID/Auto-ID Initiative

Keynote given by Tao Lin, SAP Research Center

Lead article in Boston Globe today! Auto-ID initiative was started by MIT in 1998. “RFID mandate” from Wal-Mart (and others

including D0D) for all supply providers by 2006!

Requires a world-wide standardized EPC (Electronic Product Code) to be used as tags on all products.

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Visualization for RFID/Auto-ID Initiative Visualization for RFID/Auto-ID Initiative

EPC Network will consist of mobile products with EPC tags that become “passive” elements in collection of wireless LANs that read EPC tags with RF technology.

Need to get the cost of the passive tag device down to 5 cents.

Requires global object naming services similar to DNS.

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Keynote given by Mark Davis, Professor at UC Berkeley

Basic premise: Research to solve the problem of multimedia content analysis and media asset management has failed!

Instead, make a paradigm shift to leverage the spatio-temporal context of media and …

Re-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media ComputingRe-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media Computing

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Interaction between people and devices (especially by using programmable networked mobile media capture devices.)

The major premise: Cameras are going to become obsolete. Everyone will use their cell phone to take photographs.

Is this far-fetched?

Re-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media ComputingRe-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media Computing

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Mark’s cell phone photo at CC meetingMark’s cell phone photo at CC meeting

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He focused on photographs as his example – e.g. the Berkeley tower.

The idea is to build in all the mechanisms in the mobile device to permit recording of contextual metadata in online databases such that later this context data can be used to provide correlation information.

Re-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media ComputingRe-envisioning Visual Information Systems: From Signal Analysis to Context-Aware Media Computing

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Design of Multimedia Instant Messaging System with AnnotationDesign of Multimedia Instant Messaging System with Annotation

Dr. Zon-Yin Shae, IBM The idea is to expand the instant messaging

paradigm. Three modes: text, ink, annotation. Ink – implies an image of handwritten text. Objects could also be pictures. Annotations imply displaying superimposing

active ink on top of pictures. Includes the concept of ‘scrolling’ in IM and

merges with whiteboard interface.

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PARIS: Fusing Vision-based Location Tracking with Standards-based

3D Visualization and Speech Interaction on a PDA PARIS: Fusing Vision-based Location Tracking with Standards-based

3D Visualization and Speech Interaction on a PDA

Stuart Goose, Siemens PARIS (PDA-based Augmented Reality

Integrating Speech)– Mobile node is a PDA with a camera, VRML

engine, speech recognition and tracking and location components.

– PDA connects wirelessly to plant network where real-time plant management software resides.

– Utilizes visual-based localization using coded visual markers.

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PARIS: Fusing Vision-based Location Tracking with Standards-based

3D Visualization and Speech Interaction on a PDA PARIS: Fusing Vision-based Location Tracking with Standards-based

3D Visualization and Speech Interaction on a PDA Paris automatically locates roaming

maintenance person and then displays appropriate picture of equipment.

Maintenance person gives simple commands to query equipment state, repair equipment, and make post-repair requests to check validity of repair.

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TANDEM – Transmitting Asynchronous Non Deterministic and Deterministic Events in Multimedia Systems over the InternetTANDEM – Transmitting Asynchronous Non Deterministic and Deterministic Events in Multimedia Systems over the Internet

Angela Guercio, Professor at Hiram College

Authors believe in the importance of distributed reactive multimedia systems.

The reaction consists of generating events that respond to the presence of some phenomena.

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TANDEM – Transmitting Asynchronous Non Deterministic and Deterministic Events in Multimedia Systems over the InternetTANDEM – Transmitting Asynchronous Non Deterministic and Deterministic Events in Multimedia Systems over the Internet

Tandem is an XML-based multimedia language with an application model consisting of :– Sources and sinks– Transformer nodes apply funtions to modify the

attributes of the multimedia stream. e.g., change the rendering rate of a group of streams, reduce the channels of a video for rendering.

– Triggers activate events in response to conditions being satisfied. e.g., monitoring external sensors.

– An active repository that samples and analyzes the media content for required conditions, and transmits the outcome to the triggers.

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AudioPeer: A Collaborative Distributed Audio Chat SystemAudioPeer: A Collaborative Distributed Audio Chat System

Beomjoo Seo, Ph.D. student at USC A multiuser audio chat system using a

multicast peer topology and a new audio streaming protocol.– Allows groups of students to discuss

assignments.– Permits TAs to conduct lab sessions.– Enables students to ask questions during

questions and teacher to get feedback during lectures.

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AudioPeer: A Collaborative Distributed Audio Chat SystemAudioPeer: A Collaborative Distributed Audio Chat System

The authors argue against a star topology due to single point of failure and bottleneck concerns.

Instead, they adopted a distributed peer architecture where a newly joining user may be connecting to a peer who is already participating in an ongoing audio chat session.

YimaCast – a low bandwidth consuming overlay network.

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AudioPeer: A Collaborative Distributed Audio Chat SystemAudioPeer: A Collaborative Distributed Audio Chat System

Authors worry about exceeding 250 milliseconds latency to support natural conversation.

Each peer node is equipped with an audio mixing module that relays the incoming audio from remote nodes to the outgoing connections.

Authors have actually used this system experimentally in USC courses.

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“A Case for A Mobility Based Admission Control Policy”“A Case for A Mobility Based Admission Control Policy”

Bhaskar Krishnamachari, Ph.D. student at USC

The authors application is streaming video over wireless, ad hoc, car-to-car, peer-to-peer networks (C2P2).

Note – mobile wireless networks are hard to deal with because of the routing issues.

Authors focus only on admission control policy related to QoS metrics.

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“A Case for A Mobility Based Admission Control Policy”“A Case for A Mobility Based Admission Control Policy”

They modeled thirteen road stretches with three stationary servres.

They built their own simulator using C#

programming language. C2P2 devices implemented with DSR

routing policy.

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ConclusionsConclusions

So What?–Working with a real futuristic application

opens doors to funding and paper acceptance.

– Give your system a spiffy name.– These researchers believe wireless, mobile

multimedia distributed systems are the future.

– No consideration for security issues.

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Questions?Questions?

Thanks!

DMS04 Technical Program link:

http://www.ksi.edu/seke/dms04pgm.html