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- W2737559518 startingPage "325" @default.
- W2737559518 abstract "As one of the most comprehensive and objective ways to describe facial expressions, the Facial Action Coding System (FACS) has recently received significant attention. Over the past 30 years, extensive research has been conducted by psychologists and neuroscientists on various aspects of facial expression analysis using FACS. Automating FACS coding would make this research faster and more widely applicable, opening up new avenues to understanding how we communicate through facial expressions. Such an automated process can also potentially increase the reliability, precision and temporal resolution of coding. This paper provides a comprehensive survey of research into machine analysis of facial actions. We systematically review all components of such systems: pre-processing, feature extraction and machine coding of facial actions. In addition, the existing FACS-coded facial expression databases are summarised. Finally, challenges that have to be addressed to make automatic facial action analysis applicable in real-life situations are extensively discussed. There are two underlying motivations for us to write this survey paper: the first is to provide an up-to-date review of the existing literature, and the second is to offer some insights into the future of machine recognition of facial actions: what are the challenges and opportunities that researchers in the field face." @default.
- W2737559518 created "2017-07-31" @default.
- W2737559518 creator A5016033078 @default.
- W2737559518 creator A5020947793 @default.
- W2737559518 creator A5081233863 @default.
- W2737559518 creator A5089151131 @default.
- W2737559518 date "2019-07-01" @default.
- W2737559518 modified "2023-10-18" @default.
- W2737559518 title "Automatic Analysis of Facial Actions: A Survey" @default.
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