MSMVD: Exploiting Multi-scale Image Features via Multi-scale BEV Features for Multi-view Pedestrian Detection


Taiga Yamane (NTT Corporation), Satoshi Suzuki (NTT Corporation), Ryo Masumura (NTT Corporation), Shota Orihashi (NTT Corporation), Tomohiro Tanaka (NTT Corporation), Mana Ihori (NTT Corporation), Naoki Makishima (NTT Corporation), Naotaka Kawata (NTT Corporation)
The 35th British Machine Vision Conference
PDFPosterSupplementary

Abstract

Multi-View Pedestrian Detection (MVPD) aims to detect pedestrians in the form of a bird's eye view (BEV) from multi-view images. In MVPD, end-to-end trainable deep learning methods have progressed greatly. However, they often struggle to detect pedestrians with consistently small or large scales in views or with vastly different scales between views. This is because they do not exploit multi-scale image features to generate the BEV feature and detect pedestrians. To overcome this problem, we propose a novel MVPD method, called Multi-Scale Multi-View Detection (MSMVD). MSMVD generates multi-scale BEV features by projecting multi-scale image features extracted from individual views into the BEV space, scale-by-scale. Each of these BEV features inherits the properties of its corresponding scale image features from multiple views. Therefore, these BEV features help the precise detection of pedestrians with consistently small or large scales in views. Then, MSMVD combines information at different scales of multiple views by processing the multi-scale BEV features using a feature pyramid network. This improves the detection of pedestrians with vastly different scales between views. Extensive experiments demonstrate that exploiting multi-scale image features via multi-scale BEV features greatly improves the detection performance, and MSMVD outperforms the previous highest MODA by $4.5$ points on the GMVD dataset.

Citation

@inproceedings{Yamane_2025_BMVC,
author    = {Taiga Yamane and Satoshi Suzuki and Ryo Masumura and Shota Orihashi and Tomohiro Tanaka and Mana Ihori and Naoki Makishima and Naotaka Kawata},
title     = {MSMVD: Exploiting Multi-scale Image Features via Multi-scale BEV Features for Multi-view Pedestrian Detection},
booktitle = {36th British Machine Vision Conference 2025, {BMVC} 2025, Sheffield, UK, November 24-27, 2025},
publisher = {BMVA},
year      = {2025},
url       = {https://bmva-archive.org.uk/bmvc/2025/assets/papers/Paper_24/paper.pdf}
}


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