2001-Feb-21 Peer-to-Peer Applications 1

Peer-to-Peer ApplicationsSome Scenarios

Kellogg S. Booth

NewMIC VR Lab

and

Sony, Sierra Wireless, and Telus Clusters

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The Connected Family

• Collaborative television-based activities• Multi-generational family• Not co-located (perhaps in different time zones)• One- or two-way video cameras• Picture-in-picture of other family members• Shared audio mixed with program audio• Ability to create/play “private” content

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Inter-generational Artwork

• Grandchildren use interactive paint program• Might be tied to video game, e-book, etc.

• Grandparents “watch” grandchildren paint• Might have a copy of the video game or e-book

• Two-way audio for simultaneous conversation• Audio channel is key to the sense of presence

• Kids see grandparents as picture-in-picture• Grandparents see kids as picture-in-picture

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Bedtime Story

• Grandparents read video children’s story book• Kids have a copy of the “real” book• Grandparents see video book and kids

• Picture-in-picture can be switched between the two

• Kids see video book and grandparents• Picture-in-picture can be switched back and forth• Kids might “color” in a B&W video version

• Mom or Dad “on the road” from a hotel room

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Watching Television Together

• Favorite television show viewed together• Grandparents see program and kids

• Picture-in-picture can be switched between

• Kids and parents see program and grandparents• Picture-in-picture can be switched between

• Shared audio allows comments to be heard• Muting at either end allows only program audio

• Automatic selection of correct local channel• Interactive pointers provide sense of presence

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Watching TV “Together” Separately

• Favorite television show viewed separately• Receiver(s) sees program and sender(s)

• Picture-in-picture can be switched back and forth

• Second audio track allows comments• Possible annotation of show by sender(s)

• “This is my favorite character...”• “I got one of these for my birthday…”

• Automatic selection of local viewing settings

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Aware Home Research Initiative AHRI at Georgia Tech’s GVU

http://www.cc.gatech.edu/fce/ahri/

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Overview from the AHRI Website

• The goal is to develop the requisite technologies to create a home environment that can both perceive and assist its occupants

• Projects range from fundamental technical development to cognitive and ethnological studies that assess the most appropriate and compelling technological strategies

• Involves a number of groups at Georgia Tech:• Future Computing Environments Group (FCE) • Residential Laboratory (Broadband Institute)• Georgia Research Alliance (GRA).

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The Context Toolkit (from the AHRI Website)

• The Context Toolkit is a software toolkit that enables application designers to use context, or situational/environmental information, in their applications

• Example applications to be demonstrated are the Conference Assistant, a context-enabled electronic whiteboard, and an in/out board

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The Digital Family Portrait (from the AHRI Website)

• Many of us want to keep in touch with family members who live far away from us

• This need can turn to concern from elderly family members who live by themselves

• The Digital Family Portrait helps you stay aware of the well-being of a family member

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The Family Intercom (from the AHRI Website)

• We are augmenting a domestic environment with implicitly gathered knowledge of the location and activities of its occupants

• The Family Intercom provides a test bed to explore how this context supports a variety of lightweight communication opportunities between collocated and remote family members

• There are many technologies enabling direct human-human audio communication, but none of them use the context of the communication partners effectively

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What Was I Cooking? (from the AHRI Website)

• Cooking is a common activity that is often interrupted by countless household distractions

• Our cooking collages help you remember your recent actions• Did you add the salt?• When did you start to simmer the soup?• We can tell you!

• Simple sensing technology triggers the camera to grab snapshots as you're cooking

• In the future, these sensors will be replaced by cameras that recognize a host of human actions

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The Privacy Mirror (from the AHRI Website)

• Many future home technologies rely on new sensing technologies

• The Privacy Mirror reflects what sensors could be operating in your home

• Owners or visitors have questions about sensors:• Are they working?• Which sensor is more accurate?• How are you personally being tracked?

• The Privacy Mirror helps you see the answers

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Technical Notes for Connected Family

• Dial-up modems sufficient• Audio connections could be Internet or phone• Control & graphics require modest bandwidth

• Broadcast video is not sent• No copyright infringement• Software synchronizes content (channel/time)

• Private video need not be sent in real-time• Tape, DVD, or slow Internet for archival• Slow-scan video for real-time awareness

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Sports or Other Play-by-Play

• Special case of Connected Family shared viewing• Simulcast or delayed/repeat sportscast

• Annotation and commentary• One- or two-way transmission

• No limit to number of participants• Instant “replay”

• Buffer last “N” seconds for instant replay• Tie in game console to “what if” last play

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Collaborative Video Editing

• Duplicate source video at both (all) sites• Burned to master DVD and duplicated

• Edit control information shared• Edit decision list a shared object• Time lines and other info viewed locally

• Audio & video for awareness• Multiple picture-in-picture allows selection

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Family Photo Album or Scrapbook

• Special case of collaborative editing• Assemble family archival material for presentation• Multiple family members involved

• Material need not be video• Create a video montage from digital photos• Audio annotation by “those who were there”

• Eventually master new “program” on DVD• Wedding albums, family histories, reunions, etc.

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At Home Wherever You Are

• Personal “play-list” from television at home• On the road, you want to see the same shows

• Personal ID in cell/Palm/whatever• Console in hotel room uses ID to access home• Software figures out channels, times, conflicts

• Program the home “VCR” remotely when away• View missed programs when you return• Finesses specialty channel availability issues

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Related Research

• Ontario Telepresence Project (Toronto & CITO)• Early CSCW that set the stage for a lot to come

• Ubiquitous Computing (Xerox PARC)• “Calm technology”

• Tivoli (Xerox PARC)• Interactive whiteboard and active objects

• Tangible Bits (MIT)• Integration of physical and virtual objects

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Origins of the Technology

• As We May Think (Vannevar Bush, 1945)• Foresaw hypertext, the Internet, and the World Wide Web

• Man-Computer Symbiosis (J.C.R. Licklider, 1960)• Integration of physical and virtual objects

• oNLine System (Doug Engelbart, 1965)• Invented the mouse, video windows, hyperlinks, and more

• Xanadu (Ted Nelson, 1965)• Coined the term “hypertext”, fleshed out Bush’s vision• Using computers to put things over on people: “cybercrud”

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Related Research

• The Ubiquitous Telepresence Project (Colorado)• “Ubots” interact with remote physical objects

• Wearable Computing (MIT Toronto)• “Cyberman” Steve Mann

• Human-Centered Computing (Berkeley)• Livenotes (PDA-based collaboration) and more….

• Geney™ (SFU)• Genetics learning game for children using PDAs

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Related Research Past and Present

• Smart Media Spaces (FX/PAL)• Integrating media into the work environment

• Personal and Mobile Computing Group (FX/PAL)• Supporting mobile knowledge workers

• Aura: Distraction-free Ubiquitous Computing (CMU)• Reconfigurable device-rich room

• Command Post of the Future (CMU)• Collaboration supported by information assets

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Relevant Conferences

• User Interface Software &Technology (UIST)• Innovations in the software and technology of human-

computer interfaces

• Computer Supported Cooperative Work (CSCW)• design, introduction, and use of technology that affect

groups, organizations communities and societies

• Human Factors in Computing Systems (CHI)• exchange of ideas and information about computer-human

interaction

• Conference on Ubiquitous Computing (UbiComp)• design, implementation, application and evaluation of

ubiquitous computing technologies

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Relevant Conferences

• Conference on Universal Usability (CUU)• Making computers usable and available to all people,

everywhere

• Designing Interactive Systems (DIS)• Reflection on the practice of designing interactive systems,

exploring the aesthetic, social and cultural dimensions of new technologies

• Intelligent User Interfaces (IUI)• Adaptive and adaptable user interfaces

• Graphics Interface (GI)• Annual Canadian graphics and HCI conference