The role of image size in the recognition of conversational facial expressions

Douglas W. Cunningham, Manfred Nusseck, Christian Wallraven, Heinrich Bulthoff

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Facial expressions can be used to direct the flow of a conversation as well as to improve the clarity of communication. The critical physical differences between expressions can, however, be small and subtle. Clear presentation of facial expressions in applied settings, then, would seem to require a large conversational agent. Given that visual displays are generally limited in size, the usage of a large conversational agent would reduce the amount of space available for the display of other information. Here, we examine the role of image size in the recognition of facial expressions. The results show that conversational facial expressions can be easily recognized at surprisingly small image sizes.

Original languageEnglish
Pages (from-to)305-310
Number of pages6
JournalComputer Animation and Virtual Worlds
Issue number3-4
Publication statusPublished - 2004 Jul


  • Computer graphics
  • Conversational agents
  • Facial expressions
  • Image size

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design


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