Identity-aware Facial Expression Recognition in Compressed Video

• URL: http://arxiv.org/abs/2101.00317v2
• Date: Thu, 7 Jan 2021 23:46:22 GMT
• Title: Identity-aware Facial Expression Recognition in Compressed Video
• Authors: Xiaofeng Liu, Linghao Jin, Xu Han, Jun Lu, Jane You, Lingsheng Kong
• Abstract summary: In the up to two orders of magnitude compressed domain, we can explicitly infer the expression from the residual frames. We do not need the identity label or multiple expression samples from the same person for identity elimination. Our solution can achieve comparable or better performance than the recent decoded image based methods.
• Score: 27.14473209125735
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper targets to explore the inter-subject variations eliminated facial expression representation in the compressed video domain. Most of the previous methods process the RGB images of a sequence, while the off-the-shelf and valuable expression-related muscle movement already embedded in the compression format. In the up to two orders of magnitude compressed domain, we can explicitly infer the expression from the residual frames and possible to extract identity factors from the I frame with a pre-trained face recognition network. By enforcing the marginal independent of them, the expression feature is expected to be purer for the expression and be robust to identity shifts. We do not need the identity label or multiple expression samples from the same person for identity elimination. Moreover, when the apex frame is annotated in the dataset, the complementary constraint can be further added to regularize the feature-level game. In testing, only the compressed residual frames are required to achieve expression prediction. Our solution can achieve comparable or better performance than the recent decoded image based methods on the typical FER benchmarks with about 3$\times$ faster inference with compressed data.

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