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A Survey of Automatic Facial Micro-expression Analysis: Databases, Methods and Challenges
Over the last few years, automatic facial micro-expression analysis has garnered increasing attention from experts across different disciplines because of its potential applications in various fields such as clinical diagnosis, forensic investigation and security systems.
Spontaneous Subtle Expression Detection and Recognition based on Facial Strain
In this paper, we present a novel method for detecting and recognizing micro-expressions by utilizing facial optical strain magnitudes to construct optical strain features and optical strain weighted features.
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