数据与计算发展前沿 ›› 2026, Vol. 8 ›› Issue (4): 72-86.

CSTR: 32002.14.jfdc.CN10-1649/TP.2026.04.005

doi: 10.11871/jfdc.issn.2096-742X.2026.04.005

• • 上一篇    下一篇

融合多尺度深度特征的残缺鞋印匹配算法

宋久常1(),唐云祁1,*(),郭威1,张嘉楠2   

  1. 1 中国人民公安大学侦查学院北京 100038
    2 北京市公安局朝阳分局刑事侦查支队北京 100123
  • 收稿日期:2026-01-12 出版日期:2026-08-20 发布日期:2026-08-21
  • 通讯作者: 唐云祁(E-mail: tangyunqi@ppsuc.edu.cn
  • 作者简介:宋久常,中国人民公安大学刑事科学技术专业,硕士研究生,主要研究方向为计算机视觉、鞋印识别。
    本文中主要负责算法设计、实验实施与论文撰写。
    SONG Jiuchang is a master’s student in Criminal Science and Technology at the People’s Public Security University of China. His reseach interests include computer vision and footwear impression recognition.
    In this paper, he is mainly responsible for algorithm design, conducting experiment, and manuscript writing.
    E-mail: 1725162048@qq.com|唐云祁,中国人民公安大学教授,博士研究生导师,主要研究方向为电子数据检验、深度伪造鉴别等。
    本文中负责模型设计、模型指导优化、论文修改。
    TANG Yunqi is a professor and doctoral supervisor at the School of Investigation, People’s Public Security University of China. His research interests include electronic data forensics and deepfake detection.
    In this paper, he is mainly responsible for model design,guidance on model optimization, and manuscript revision.
    E-mail: tangyunqi@ppsuc.edu.cn
  • 基金资助:
    中国人民公安大学刑事科学技术双一流创新研究专项(2023SYL06)

Deficient Shoeprint Matching via Fusion of Multi-Scale Deep Features

SONG Jiuchang1(),TANG Yunqi1,*(),GUO Wei1,ZHANG Jianan2   

  1. 1 School of Investigation, People’s Public Security University of China, Beijing 100038, China
    2 Criminal Investigation Detachment, Chaoyang Sub-bureau, Beijing Municipal Public Security Bureau, Beijing 100123, China
  • Received:2026-01-12 Online:2026-08-20 Published:2026-08-21

摘要:

【背景】 鞋印作为犯罪现场最常见的物证之一,在刑事侦查中发挥着重要作用。“鞋印+监控”侦查技术通过将现场鞋印与视频监控相结合,已成为锁定犯罪嫌疑人的有效手段。【目的】 针对现有鞋印匹配算法存在的针对性不强、鲁棒性差、匹配精度不高以及计算复杂度大等问题,本文提出一种基于改进EfficientNetV2-S的融合多尺度深度特征的残缺鞋印匹配算法。【方法】 构建了包含1,342类共7,455张鞋印样本的DP-database数据集,其中残缺鞋印占比约70%。采用轻量化的EfficientNetV2-S为骨干网络,引入ECA注意力机制优化Fused-MBConv模块,并通过多层级特征融合策略整合Stage2至Stage6的深度特征,实现不同尺度鞋印信息的有效提取。【结果】 在CSS-200数据集上取得top1准确率79%、top10准确率89.5%、top200查全率100%。在CS-Database数据集上,高质量鞋印和血迹鞋印的top1检出率均达100%,灰尘鞋印的top5检出率达100%,优于现有主流算法。【结论】 本文方法在保持高效率的同时显著提升了匹配精度和鲁棒性,对残缺、模糊等低质量鞋印具有较强识别能力,可有效满足公安实战“快侦快破”需求。

关键词: 匹配算法, 特征融合, 残缺鞋印, EfficientNetV2-S

Abstract:

[Background] Shoeprints, common physical evidence at crime scenes, play a key role in criminal investigations. The “shoeprint+surveillance” technology narrows down suspect identification by combining on-site shoeprints with video surveillance. [Objective] To address limitations of existing shoeprint matching algorithms (limited task specificity, poor robustness, low accuracy, high computational complexity), this paper proposes a deficient shoeprint matching algorithm based on improved EfficientNetV2-S with multi-scale deep feature fusion. [Methods] We constructed the DP-database with 7,455 shoeprint samples (1,342 categories, 70% deficient). Using lightweight EfficientNetV2-S as backbone, we optimized Fused-MBConv via ECA attention and integrated Stage2-Stage6 deep features through multi-level fusion for multi-scale shoeprint information extraction. [Results] On CSS-200, it achieved 79% top-1 accuracy, 89.5% top-10 accuracy, and 100% top-200 recall. On CS-Database, top-1 detection rate reached 100% for high-quality and bloodstained shoeprints, 100% top-5 for dust ones, outperforming mainstream algorithms. [Conclusions] The proposed method improves accuracy and robustness while maintaining efficiency, effectively recognizes low-quality shoeprints (deficient, blurred), and meets public security's rapid investigation requirements.

Key words: matching algorithm, feature fusion, partial shoe print, EfficientNetV2-S