vibro-tactile feedback during pen manipulation in space fareed ahmed [email protected] project for...
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Vibro-Tactile feedback during Pen Vibro-Tactile feedback during Pen Manipulation in SpaceManipulation in Space
Fareed Ahmed
Project for the course New Interaction TechniquesFall 2003
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OverviewOverview
What is Tactile FeedbackProject OverviewApparatusApplications / ConclusionFuture InvestigationReferencesQuestions
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Tactile FeedbackTactile Feedback
Tactile Means
– Perceptible by touch: TANGIBLE
– Relating to the sense of touch Referring to the sense of contact with the object, mediated by
the responses of low-threshold mechanoreceptors innervating the skin, within and around the contact region.
Mechanoreceptors
– Human being and other animals have several types of receptors of mechanical stimuli. Each initiates nerve impulses in sensory neurons when it is physically deformed by an outside force such as:
touch, pressure, stretching, sound waves, motion
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Project OverviewProject Overview
Three Main Parts
– Capture Video– Process Image– Produce Tactile Feedback
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Apparatus UsedApparatus Used
WebCam Logitech Tactile Feedback Mouse Tactile Pen
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Form Load
WebCam:
Connect and initialize
Picture Control:
Display green pixel if RGB value in green
range
Col.R < 80 And Col.B < 180 And
Col.G > 190
CaptureImage
ImmersionControlPicFrame_Mou
seMove()
CapEditCopy to copy single frame to
clipboard
PSet
Timer1
Vibro-Tactile feedback
StartEffect
ClipBoardGetData
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Video CaptureVideo Capture Capture Videos using Logitech webcam
Private Sub Form_Load()
Retrieves driver info
capGetDriverDescriptionA 0, lpszName, 100, lpszVer, 100
lwndC = capCreateCaptureWindowA(lpszName, WS_CHILD Or WS_VISIBLE, 0, 0, 160, 120, picVideo.hwnd, 0)
capSetCallbackOnVideoStream lwndC, AddressOf MyFrameCallback
End Sub
Public Sub captureImage()capEditCopy lwndC picFrame.Picture = Clipboard.GetDataEnd Sub
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Video ProcessingVideo Processing
Capture Video as Frames Process each Frame as Image Detect green colour in Image Highlight One of Nine sectors on Screen
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Produce Tactile FeedbackProduce Tactile Feedback
Generate Tactile Feedback Using– Tacticons created by Immersion Soft– Tactile impact redirected from Mouse to
Pen/Stick
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ApplicationsApplications
Applications for the disabled people
– for example, presenting information or models with a tactile display when the user does not see well
Tactile feedback as a part of graphical user interface
– for example, to be used to give feedback on specific events
Games, virtual reality
– the simulated world feels more real when the user can really touch it
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Future InvestigationsFuture Investigations
Study Subjects behavior with Application
Addition of Sound with tactile feedback
Creation of a Game with Tactile Feedback
Application Integration with mobile Devices
[3, 4]
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Future Investigations (Cont.)Future Investigations (Cont.)[2]
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ReferencesReferences
[1] Corde Lane and Jerry Smith: Force and Tactile Feedback
http://www.hitl.washington.edu/scivw/EVE/I.C.ForceTactile.html [2] Cao, X., Balakrishnan, R. VisionWand: Interaction Techniques for
Large Displays using a Passive Wand Tracked in 3D. http://www.cs.toronto.edu/~caox/uist2003_visionwand.pdf
[3] Zack Rosen: Creating a Web Browser For The Blind Using Tactile Feedback http://www.darktide.nu/nwa/zack/flash/PJAS10.ppt
[4] Roope Raisamo: Tactile User Interfaces http://www.cs.uta.fi/kurssit/Interact/interact5-2001.ppt
[5] Jeonghun Ku, Richard Mraz: Implementing a Data Glove with Tactile Feedback http://www.swchsc.on.ca/~virtualreality/downloads/IWVR%202003%20Abstract.pdf
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QuestionsQuestions
?