Collaborative Feature Aggregation for Face Super-Resolution and Robust Re-Identification

• URL: http://arxiv.org/abs/2607.28130v1
• Date: Thu, 30 Jul 2026 12:39:57 GMT
• Title: Collaborative Feature Aggregation for Face Super-Resolution and Robust Re-Identification
• Abstract summary: We propose a novel collaborative approach for face super-resolution (SR) and robust person re-identification from sequential or multi-view images.<n>We leverage multiple correlated facial observations, across time or viewpoints, by introducing a transformer-based collaborative feature aggregation method.<n>Our work highlights the effectiveness of joint identity reconstruction and progressive image restoration from multiple facial inputs in enhancing downstream visual recognition tasks.
• Score: 9.337630814789009
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose a novel collaborative approach for face super-resolution (SR) and robust person re-identification from sequential or multi-view facial images. Traditional SR methods often suffer from blurring and distortion in faces recovered from poor-quality images due to low resolution. Image- and video-based facial SR methods using facial landmarks or segmentation also have similar challenges. To overcome these limitations, we leverage multiple correlated facial observations, across time or viewpoints, by introducing a transformer-based collaborative feature aggregation method that unifies identity features from multi-sequence or multi-view data. This allows faces in multiple sequences of an individual to contribute to accurately estimating common facial features. Furthermore, we propose a cascade SR network to progressively restore the high-resolution image of the target's face with gradual facial feature unification. The unified identity representation is further utilized in person re-identification scenarios, enabling accurate matching even under severe image degradation. The exhaustive experimental results and comparisons show that our method outperforms other state-of-the-art methods, demonstrating consistent improvements in both face super-resolution and re-identification performance. Our work highlights the effectiveness of joint identity reconstruction and progressive image restoration from multiple facial inputs in enhancing downstream visual recognition tasks.

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