Emotion primitive descriptions are an important alternative to classical emotion categories
for describing a human's affective expressions. We build a multi-dimensional emotion space
composed of the emotion primitives of valence, activation, and dominance. In this study, an
image-based, text-free evaluation system is presented that provides intuitive assessment of
these emotion primitives, and yields high inter-evaluator agreement. An automatic system for
estimating the emotion primitives is introduced. We use a fuzzy logic estimator and a rule …