4D Cardiff Conversation Database (4D CCDb): a 4D database of natural, dyadic conversations.
AVSP(2015)
摘要
The 4D Cardiff Conversation Database (4D CCDb) is the first
4D (3D Video) audio-visual database containing natural conversations
between pairs of people. This publicly available
database contains 17 conversations which have been fully annotated
for speaker and listener activity: conversational facial
expressions, head motion, and verbal/non-verbal utterances. It
can be accessed at http://www.cs.cf.ac.uk/CCDb.
In this paper we describe the data collection and annotation
process. We also provide results of a baseline classification
experiment distinguishing frontchannel from backchannel
smiles, using 3D Active Appearance Models for feature extraction,
polynomial fitting for representing the data as 4D sequences,
and Support Vector Machines for classification. We
believe this expression-rich, audio-visual database of natural
conversations will make a useful contribution to the computer
vision, affective computing, and cognitive science communities
by providing raw data, features, annotations, and baseline comparisons.
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关键词
4d cardiff conversation database,naturaldyadic conversations,4d ccdb,4d database
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