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- W3137672013 abstract "Person search aims to simultaneously localize and identify a query person from realistic, uncropped images, which can be regarded as the unified task of pedestrian detection and person re-identification (re-id). Most existing works employ two-stage detectors like Faster-RCNN, yielding encouraging accuracy but with high computational overhead. In this work, we present the Feature-Aligned Person Search Network (AlignPS), the first anchor-free framework to efficiently tackle this challenging task. AlignPS explicitly addresses the major challenges, which we summarize as the misalignment issues in different levels (i.e., scale, region, and task), when accommodating an anchor-free detector for this task. More specifically, we propose an aligned feature aggregation module to generate more discriminative and robust feature embeddings by following a re-id first principle. Such a simple design directly improves the baseline anchor-free model on CUHK-SYSU by more than 20% in mAP. Moreover, AlignPS outperforms state-of-the-art two-stage methods, with a higher speed. Code is available at https://github.com/daodaofr/AlignPS" @default.
- W3137672013 created "2021-03-29" @default.
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- W3137672013 date "2021-03-22" @default.
- W3137672013 modified "2023-10-12" @default.
- W3137672013 title "Anchor-Free Person Search" @default.
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- W3137672013 doi "https://doi.org/10.48550/arxiv.2103.11617" @default.
- W3137672013 hasPublicationYear "2021" @default.
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