Colours and Faces Tzu-Pei Grace Chen Sidney Fels Human Communication Technologies Lab.
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Colours and Faces Tzu-Pei Grace Chen Sidney Fels Human Communication Technologies Lab
Presentation outline Colours and face relations offer a good starting point to tackle face metric problem Results from second pilot tests Discussion
Role of the human face Identity Communication Attractiveness
Challenge in face recognition Is there a face metric system that can adequately quantify all existing faces?
Why is it difficult in quantifying faces? Faces are transient We have sharp face recognition skills Infinite dimensions and acute recognition makes it hard
Previous work Face similarity metric –Eigenface [Turk and Pentland] –Shape free face [Craw et al and Bruce et al] Face attractiveness metric –Beauty mask [Marquardt]
Why is colour metaphor a good starting point? Multi-dimensional Well-researched (many systems) Has less dimension than faces Good to model from a smaller example
Colour and face relations Colour-blindness vs. face-blindness Verbal over-shadowing effect Colour, emotion and facial expression. Colour vs. face opponent mechanism Primary colours and existence of primary faces
Colour blindness and face blindness NormalBlind Colour Face
Verbal foreshadowing Memory of both face and colours can be impaired if verbalized after studied For faces, this is due to a lack of words to describe the holistic properties Verbal descriptions limited to face features Perceptual ability surpass verbal ability Same for colours