Deep Insights of Learning based Micro Expression Recognition: A Perspective on Promises, Challenges and Research Needs

• URL: http://arxiv.org/abs/2210.04935v1
• Date: Mon, 10 Oct 2022 18:08:24 GMT
• Title: Deep Insights of Learning based Micro Expression Recognition: A Perspective on Promises, Challenges and Research Needs
• Authors: Monu Verma, Santosh Kumar Vipparthi, and Girdhari Singh
• Abstract summary: Deep learning (DL) based techniques have been adopted to gain higher performance for micro expression recognition (MER) This paper aims to provide a deep insight into the DL-based MER frameworks with a perspective on promises in network model designing, experimental strategies, challenges, and research needs.
• Score: 7.218497970427467
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Micro expression recognition (MER) is a very challenging area of research due to its intrinsic nature and fine-grained changes. In the literature, the problem of MER has been solved through handcrafted/descriptor-based techniques. However, in recent times, deep learning (DL) based techniques have been adopted to gain higher performance for MER. Also, rich survey articles on MER are available by summarizing the datasets, experimental settings, conventional and deep learning methods. In contrast, these studies lack the ability to convey the impact of network design paradigms and experimental setting strategies for DL-based MER. Therefore, this paper aims to provide a deep insight into the DL-based MER frameworks with a perspective on promises in network model designing, experimental strategies, challenges, and research needs. Also, the detailed categorization of available MER frameworks is presented in various aspects of model design and technical characteristics. Moreover, an empirical analysis of the experimental and validation protocols adopted by MER methods is presented. The challenges mentioned earlier and network design strategies may assist the affective computing research community in forging ahead in MER research. Finally, we point out the future directions, research needs, and draw our conclusions.

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