  Museums are interested in designing emotional visitor experiences to
complement traditional interpretations. HCI is interested in the relationship
between Affective Computing and Affective Interaction. We describe Sensitive
Pictures, an emotional visitor experience co-created with the Munch art museum.
Visitors choose emotions, locate associated paintings in the museum, experience
an emotional story while viewing them, and self-report their response. A
subsequent interview with a portrayal of the artist employs computer vision to
estimate emotional responses from facial expressions. Visitors are given a
souvenir postcard visualizing their emotional data. A study of 132 members of
the public (39 interviewed) illuminates key themes: designing emotional
provocations; capturing emotional responses; engaging visitors with their data;
a tendency for them to align their views with the system's interpretation; and
integrating these elements into emotional trajectories. We consider how
Affective Computing can hold up a mirror to our emotions during Affective
Interaction.
