A Novel Combined Optical Flow Approach for Comprehensive Micro-Expression Recognition
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908655697264640 |
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| author | Khuong, Vu Tram Anh Man, Thi Bich Phuong Nguyen, Luu Tu Le, Thanh Ha Ngo, Thi Duyen |
| author_facet | Khuong, Vu Tram Anh Man, Thi Bich Phuong Nguyen, Luu Tu Le, Thanh Ha Ngo, Thi Duyen |
| contents | Facial micro-expressions are brief, involuntary facial movements that reveal hidden emotions. Most Micro-Expression Recognition (MER) methods that rely on optical flow typically focus on the onset-to-apex phase, neglecting the apex-to-offset phase, which holds key temporal dynamics. This study introduces a Combined Optical Flow (COF), integrating both phases to enhance feature representation. COF provides a more comprehensive motion analysis, improving MER performance. Experimental results on CASMEII and SAMM datasets show that COF outperforms single optical flow-based methods, demonstrating its effectiveness in capturing micro-expression dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_15471 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Novel Combined Optical Flow Approach for Comprehensive Micro-Expression Recognition Khuong, Vu Tram Anh Man, Thi Bich Phuong Nguyen, Luu Tu Le, Thanh Ha Ngo, Thi Duyen Computer Vision and Pattern Recognition Facial micro-expressions are brief, involuntary facial movements that reveal hidden emotions. Most Micro-Expression Recognition (MER) methods that rely on optical flow typically focus on the onset-to-apex phase, neglecting the apex-to-offset phase, which holds key temporal dynamics. This study introduces a Combined Optical Flow (COF), integrating both phases to enhance feature representation. COF provides a more comprehensive motion analysis, improving MER performance. Experimental results on CASMEII and SAMM datasets show that COF outperforms single optical flow-based methods, demonstrating its effectiveness in capturing micro-expression dynamics. |
| title | A Novel Combined Optical Flow Approach for Comprehensive Micro-Expression Recognition |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2510.15471 |