INvestigation of task based gesture recognition for laser actuated presentation systems

QC 20140922
We revisit the idea that human subjects could control an on-screen presentation using pointing and drawing gestures made using a laser pointer on a presentation screen. One of the major hurdles of this kind of systems is to unambiguously distinguish between voluntary and involuntary gestures. We have investigated in this work specific spatio-temporal signature of gesture movements that could be used to distinguish between voluntary and involuntary gestures. Three simple gestures that could be made using a laser pointer; uni-directional drawing gesture, bi-directional drawing gesture and pointing gesture, had been used for the study. Subjects were asked to perform these tasks, with a laser pointer, on a screen. Our study showed that though the subjects tended to perform the tasks at their preferred tempo and the velocity profile of all subjects exhibited a task specific characteristic feature. Similar study with pointing gestures also revealed that the position of the laser pointer exhibited anisotropic Gaussian distribution, whose standard deviations decreased with the increase in dwell time.

NATURVETENSKAP Data- och informationsvetenskap Människa-datorinteraktion hsv//swe
NATURAL SCIENCES Computer and Information Sciences Human Computer Interaction hsv//eng
Gesture detection
Hand movement
Human-computer interaction
Laser controlled mouse
Bi-directional
Dwell time
Human subjects
Human-computer
Laser pointer
Presentation system
Spatio-temporal
Standard deviation
Task-based
Velocity profiles
Human computer interaction
Knowledge management
Mammals
Gesture recognition

Ingår i:Proc. IASTED Int. Conf. Hum.-Comput. Interact., HCI, s. 76-829780889868717

Av författaren/redakt...: Chowdhary, A.; Karmakar, S.; Agrawal, Vivek; Sarkar, S.

Om ämnet

NATURVETENSKAP: NATURVETENSKAP; och Data och informa ...; och Människa datorin ...

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