virtual characters and virtual environments research projects of the virtual environments group

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Virtual Characters and Virtual Environments Research Projects of the Virtual Environments Group. February 27 th , 2004 Benjamin Lok. Applications Driven Combines: Interactive Computer Graphics Computer Vision Human Computer Interaction. Virtual Experiences Group. PhD Students (2) - PowerPoint PPT Presentation

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  • Virtual Characters and Virtual Environments

    Research Projects of the Virtual Environments Group

    February 27th, 2004Benjamin Lok

  • Applications DrivenCombines:Interactive Computer GraphicsComputer VisionHuman Computer Interaction

  • Virtual Experiences GroupPhD Students (2)Kyle Johnsen (B.S. UF)Cyrus Harrison (B.S., M.S. (expected) UF)MS Students (1)George Mora (B.S. UF) DASUndergraduates (4)Sayed Hashimi (S)Andrew Joubert (S)John Samuelsen (S)Art Homs (J)

  • OverviewComputer generated characters and environmentsAmazing visuals and audioInteracting is limited!

    Reduce applicability?

    Goals:Create new methods to interact Evaluate the effectiveness of these interaction methodsAki from Final Fantasy: The Spirits WithinWalking Experiment PIT - UNC

  • Life-Sized Virtual CharactersVirtual Characters as a way to interact with informationIf virtual characters are presented with an adequate level of realism, would people respond to them as they would to other people?

    Effective InteractionNatural (> than keyboard and mouse)3D, Dynamic (augmentable)Effective CollaborationNon-verbal communication (60%)High impact?

  • InteractionEach participant in a communication has three stages: perception, cognition, and responseInvestigate: Display, perception, efficacyThinkingParticipantThinkingRespondingPerceivingRespondingPerceivingInteraction

  • Projects underwayInterpersonal communicationDistributed acting rehearsal

    TeachingMedical Diagnosis TrainingTraining transfer

    Future work: Universal AccessDisabledMinoritiesRural communities

  • Virtual EnvironmentsBeen around for almost 30 years# of systems in research labs > day to day useWhy?Interaction with the virtual environment is too poorEverything is virtual isnt necessarily good Example, change a light bulb

    Approach:Real objects as interfaces to the virtual worldMerge the real and virtual spacesEvaluate what VR is good for!

  • Projects underwayGetting real objects into VR to aid engineering designCollaboration w/ Mars Airplane (Langley Research Center)Get tools, parts, and other (possibly distributed) collaborators in a shared space

  • Videos of TaskHaving a hybrid environment provides substantial benefits in prototype design.

  • Merging real and virtual spaces

  • Avatars in VEMost virtual environments do not provide an avatar (user self-representation)Why? Because tracking the human body is difficult.Solution: Use simple computer vision to track colored markers to generate an avatar

  • Locomotion in VRMost common locomotion:Use a virtual walking metaphor.Does this reduce effectiveness?We can test this because of new wide-area tracking technologies.

  • VR InteractionGetting real objects into virtual environmentsHow do you naturally interact with virtual objects?

  • Virtual Experiences Group2 PhD students1 MS4 Undergraduates

    15x15x10 wide area trackerVirtual Research V8 HMD42 Plasma TV4 data projectors 120 passive stereo displayCollaboration with expertise in: Virtual Reality Digital Arts Image Processing Computational Geometry Human Computer Interaction Image Based Rendering

    Explain FlashingSo he can see the other virtual models and their constraints imposed on the task.

    Make 3rd larger