Estimando la Dificultad de Gestos Manuales (Estimating the Difficulty of Touchless Hand Gestures)

Orlando Erazo (, Jose Pino (

Universidad de Chile
This paper appears in: Revista IEEE América Latina

Publication Date: Jan. 2014
Volume: 12,   Issue: 1 
ISSN: 1548-0992

As part of a Natural User Interface we can use human body gestures, although they must be evaluated to get better results. We can evaluate them using a quantitative model. For this purpose, we begin the analysis of touchless hand gestures based on significant gesture features. From the large number of possible features we selected the length and the directions of trajectory. We propose to use the quantity of distance units and directions for describing and quantifying gestures. Moreover, we found that well-defined changes of directions (or corners) influence the speed for performing a gesture, thus users need more time to execute the gesture. Additionally, a model was developed using these three features. The model allows estimating the difficulty of gestures before users testing.

Index Terms:
Human-Computer Interaction,Natural User Interfaces,Gesture Interfaces,Gesture Analysis.   

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