The face-space duality hypothesis: a computational model

Publication Type:
Conference Proceeding
Full metadata record
Files in This Item:
Filename Description Size
vitale_face_space_duality_hypothesis.pdfPublished version253.44 kB
Adobe PDF
Valentine's face-space suggests that faces are represented in a psychological multidimensional space according to their perceived properties. However, the proposed framework was initially designed as an account of invariant facial features only, and explanations for dynamic features representation were neglected. In this paper we propose, develop and evaluate a computational model for a twofold structure of the face-space, able to unify both identity and expression representations in a single implemented model. To capture both invariant and dynamic facial features we introduce the face-space duality hypothesis and subsequently validate it through a mathematical presentation using a general approach to dimensionality reduction. Two experiments with real facial images show that the proposed face-space: (1) supports both identity and expression recognition, and (2) has a twofold structure anticipated by our formal argument.
Please use this identifier to cite or link to this item: