Document Detail

Developing and testing a human-based gesture vocabulary for tabletop systems.
MedLine Citation:
PMID:  22908686     Owner:  NLM     Status:  In-Process    
OBJECTIVE: The goal was to study the natural and intuitive use of surface gestures for the development of a tabletop system. Furthermore, the effect of expertise on choice of gestures was examined.
BACKGROUND: It is still not well understood what kinds of gestures novice users choose when they interact with gesture recognition systems.
METHOD: First, novices' and experts' choice of gestures for a tabletop system was compared in a quasiexperimental design. Second, memorability of novices' and experts' gesture sets derived from the first study was compared in an experimental study. Third, memorization of hand shape and motion path was examined in a further experiment.
RESULTS: Data revealed user preferences for specific hand shapes and motion paths. Choice of gestures was affected by the size of the manipulated object,expertise, and nature of the command (direct manipulation of objects vs. assessment of abstract functions). Follow-up experiments revealed that the novices' gesture set was better memorized than were the experts' gesture set. Furthermore, the motion path of a gesture is better memorized than the specific hand shapes for a gesture.
CONCLUSION: Expertise affects the choice of gesture to a certain degree. It is therefore essential to involve novice users in the development of gesture vocabularies. Gestures for technical systems should be simple and should involve distinctive motion patterns instead of focusing on specific hand shapes or number of fingers. Abstract or symbolic gestures should be avoided.
APPLICATION: Results of the study can be applied to the development of surface gestures for tabletop systems.
Jacqueline Urakami
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Human factors     Volume:  54     ISSN:  0018-7208     ISO Abbreviation:  Hum Factors     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-08-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374660     Medline TA:  Hum Factors     Country:  United States    
Other Details:
Languages:  eng     Pagination:  636-53     Citation Subset:  IM; S    
Keio University, Shonan Fujisawa Campus, Endo Fujisawa 5322, Japan.
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