This paper reviews some of the key challenges in affect recognition research for the purpose of designing affect sensitive social robots. An important requirement for a social robot is to be endowed with recognition abilities that vary according to the context of interaction. This paper presents an approach for the analysis of different affective cues depending on the distance at which user and robot interact.
['Ginevra Castellano', 'Peter W. McOwan']
Analysis of affective cues in human-robot interaction: A multi-level approach