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Browsing 3-D spaces with 3-D vision: body-driven navigation through the Internet city

Browsing 3-D spaces with 3-D vision: body-driven navigation through the Internet city,10.1109/TDPVT.2002.1024067,Flavia Sparacino,Christopher Richard

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Browsing 3-D spaces with 3-D vision: body-driven navigation through the Internet city   (Citations: 11)
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This paper presents a computer vision stereo based interface to navigate inside a 3-D Internet city, using body gestures. A wide-baseline stereo pair of cameras is used to obtain 3-D body models of the user's hands and head in a small desk -area environment. The interface feeds this information to a n HMM gesture classifier to reliably recognize the user's browsing commands. To illustrate the features of this interface we describe its application to our 3-D Internet browser which facilitates the recollection of information by organizing and embedding it inside a virtual city through which the user navigates.
Conference: 3D Data Processing Visualization and Transmission - 3DPVT , pp. 224-233, 2002
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    • ...Less common techniques, like the ones based on gesture and body motion, suffer from their own drawbacks, often requiring large and/or expensive setups [11], sometimes limiting the user’s natural movements not associated with navigation, or being prone to cause user fatigue in long sessions [12]...

    Leonardo Fischer, et al. Finding Hidden Objects in Large 3D Environments: The Supermarket Probl...

    • ...In recent years, there has been a trend to combine vision technologies with computer games to develop immersive and perceptual HCI [2-9]...
    • ...Consequently, MMI techniques can be applied to achieve at least three targets: i) controlling the moving of game objects [5, 26], ii) controlling the actions/responses of the game object [3-4, 6-8], iii) combining scenes of the real world with that of the virtual one for immersive gaming experiences [14]...
    • ...As a result, computer vision techniques are widely applied in several processing stages including data capturing, motion analysis, tracking and gesture/face recognition [2-9, 13]...
    • ...For 3-D positioning, two or more cameras are desired; such as stereo camera pairs used in [3, 4, 17, 24, 25] and multiple cameras used in [6, 16]...
    • ...For spatial normalization, calibration is commonly used [2], especially for 3-D gaming with multiple cameras [3, 4, 16, 27, 24, 25]...
    • ...Shape is another very popular feature for blobs, which can be represented by the orientation of main axis [9], location of centriod [12], moments [13], size (2-D area and 3-D volume) [4, 23, 24] and bounding box [24]...
    • ...Velocity and orientation is often used for motion features [3, 4, 13, 15, 16], which respectively measure the magnitude and phase of the corresponding motion vector...
    • ...When human body parts or other content of interest are detected, their spatial locations are determined and used for positioning [3, 4, 9, 13, 14, 16, 17, 19, 23, 25]...
    • ...The body parts and objects used include feet [3], hands [4, 13, 16, 17, 19], fingers [16, 17], face/head [4, 23], wrists [25], and external objects like game pieces [9] and markers [14]...
    • ...The body parts and objects used include feet [3], hands [4, 13, 16, 17, 19], fingers [16, 17], face/head [4, 23], wrists [25], and external objects like game pieces [9] and markers [14]...
    • ...On the other hand, special body parts can be located via appearance-based modeling, including determining hands and face heuristically from detected skin regions [4, 23, 25] and shape modeling of hands, fingers and face for markerless tracking [4, 13, 16, 17, 23, 25]...
    • ...On the other hand, special body parts can be located via appearance-based modeling, including determining hands and face heuristically from detected skin regions [4, 23, 25] and shape modeling of hands, fingers and face for markerless tracking [4, 13, 16, 17, 23, 25]...
    • ...Although heuristic approaches can be applied for gesture recognition using thresholding [24] and rulebased reasoning [25], Hidden Markov Model (HMM) is widely employed for this purpose [4, 16, 19, 23]...
    • ...In Sparacino et al [4], a stereo tracking system is presented to recover the 3-D geometry of the user’s hands and head towards precise and reliable HCI to explore 3-D data of an Internet city...

    Jinchang Ren, et al. Immersive and perceptual human-computer interaction using computer vis...

    • ...Stereo tracking of pointing and command gestures, and HMM based gesture recognition is discussed in [40]...

    Flavia Sparacino. Natural Interaction in Intelligent Spaces: Designing for Architecture ...

    • ...Stereo tracking of pointing and command gestures, and HMM based gesture recognition is discussed in [39]...

    Flavia Sparacino. Natural interaction in intelligent spaces: Designing for architecture ...

    • ...readable way. This third dimension can also be used for replacing maps by 3D worlds: landscapes [6] or cities [7] [8]...

    Nicolas Bonnel, et al. Effective Organization and Visualization of Web Search Results

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