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Physical Sciences and Mathematics Commons

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Selected Works

Dr Fok Hing Chi Tivive

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Full-Text Articles in Physical Sciences and Mathematics

Automatic Recognition Of Smiling And Neutral Facial Expressions, Peiyao Li, S Phung, Abdesselam Bouzerdoum, Fok Hing Chi Tivive Dec 2012

Automatic Recognition Of Smiling And Neutral Facial Expressions, Peiyao Li, S Phung, Abdesselam Bouzerdoum, Fok Hing Chi Tivive

Dr Fok Hing Chi Tivive

Facial expression is one way humans convey their emotional states. Accurate recognition of facial expressions via image analysis plays a vital role in perceptual human computer interaction, robotics and online games. This paper focuses on recognising the smiling from the neutral facial expression. We propose a face alignment method to address the localisation error in existing face detection methods. In this paper, smiling and neutral facial expression are differentiated using a novel neural architecture that combines fixed and adaptive non-linear 2-D filters. The fixed filters are used to extract primitive features, whereas the adaptive filters are trained to extract more …