End-to-End Shared Attention Estimation via Group Detection with Feedback Refinement
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arXiv
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| Format: | Preprint |
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2026
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| author | Nakatani, Chihiro Ukita, Norimichi Odobez, Jean-Marc |
| author_facet | Nakatani, Chihiro Ukita, Norimichi Odobez, Jean-Marc |
| contents | This paper proposes an end-to-end shared attention estimation method via group detection. Most previous methods estimate shared attention (SA) without detecting the actual group of people focusing on it, or assume that there is a single SA point in a given image. These issues limit the applicability of SA detection in practice and impact performance. To address them, we propose to simultaneously achieve group detection and shared attention estimation using a two step process: (i) the generation of SA heatmaps relying on individual gaze attention heatmaps and group membership scalars estimated in a group inference; (ii) a refinement of the initial group memberships allowing to account for the initial SA heatmaps, and the final prediction of the SA heatmap. Experiments demonstrate that our method outperforms other methods in group detection and shared attention estimation. Additional analyses validate the effectiveness of the proposed components. Code: https://github.com/chihina/sagd-CVPRW2026. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_01714 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | End-to-End Shared Attention Estimation via Group Detection with Feedback Refinement Nakatani, Chihiro Ukita, Norimichi Odobez, Jean-Marc Computer Vision and Pattern Recognition This paper proposes an end-to-end shared attention estimation method via group detection. Most previous methods estimate shared attention (SA) without detecting the actual group of people focusing on it, or assume that there is a single SA point in a given image. These issues limit the applicability of SA detection in practice and impact performance. To address them, we propose to simultaneously achieve group detection and shared attention estimation using a two step process: (i) the generation of SA heatmaps relying on individual gaze attention heatmaps and group membership scalars estimated in a group inference; (ii) a refinement of the initial group memberships allowing to account for the initial SA heatmaps, and the final prediction of the SA heatmap. Experiments demonstrate that our method outperforms other methods in group detection and shared attention estimation. Additional analyses validate the effectiveness of the proposed components. Code: https://github.com/chihina/sagd-CVPRW2026. |
| title | End-to-End Shared Attention Estimation via Group Detection with Feedback Refinement |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2604.01714 |