1 / 18

Colours and Faces

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

kenley
Download Presentation

Colours and Faces

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Colours and Faces Tzu-Pei Grace Chen Sidney Fels Human Communication Technologies Lab

  2. Presentation outline • Colours and face relations • offer a good starting point to tackle face metric problem • Results from second pilot tests • Discussion

  3. Role of the human face Identity Communication Attractiveness

  4. Challenge in face recognition Is there a face metric system that can adequately quantify all existing faces?

  5. Why is it difficult in quantifying faces? • Faces are transient • We have sharp face recognition skills • Infinite dimensions and acute recognition makes it hard

  6. 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]

  7. 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

  8. 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

  9. Colour blindness and face blindness Blind Normal Colour Face

  10. Opponent mechanism

  11. 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

  12. Plutchik’s model of emotions

  13. Primary faces? • DNA evidence • Localization of mating habit

  14. Second experiment • Investigating two types of axes and two kinds of interface. axes T-S uncorrelated T-S correlated wheel interface dynamic slider

  15. Findings from second pilot test • Subjects refine their match around the range of distance [1,2] from the target • The hump occurs most frequently with correlated sliders

  16. Conclusion from pilot test • For a small face space… axes T-S uncorrelated T-S correlated wheel interface  dynamic slider

  17. Summary Colour metaphor seems like a good starting point to tackle face metric problem Second pilot test- work in progress investigates additive and subtractive face system

  18. The End

More Related