A novel few-shot object detection framework for multi-scene driving based on contrastive proposal encoding

Y Yalei Dong J Jing Xiao (School of Materials Science and Engineering, Sun Yat-sen University) F Fengchen Wei

Abstract

This paper proposes a few-shot object detection algorithm based on FSCE, tailored for multi-scenario driving environments. Unlike existing methods that focus on single scenarios, our approach addresses challenges of cross-scenario heterogeneity and overfitting in low-data regimes. We enhance feature representation through a multi-scale feature module that integrates local and contextual information, and replace the traditional Softmax with a cosine Softmax classifier to reduce intra-class variance via L2 normalization and angular margin constraints. This work is the first to apply few-shot detection to both nighttime infrared and daytime visible-light driving scenarios. Experiments on FLIR and BDD100K demonstrate superior generalization and accuracy over existing methods. Future work will explore reducing model complexity while maintaining performance.

Article Details

Journal PLoS ONE
Volume / Issue Vol. 20, Issue 12
Published December 30, 2025
Pages e0337541
ISSN 1932-6203
Publisher Public Library of Science

Journal Info

PLoS ONE

Public Library of Science

ISSN: 1932-6203 Open Access Health Sciences

Authors (3)

Y

Yalei Dong

J

Jing Xiao

School of Materials Science and Engineering, Sun Yat-sen University

F

Fengchen Wei