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An Ensemble Approach for Outdoor Fire Detection Using DINOv2 and Swin Transformer to Minimize Unwanted Fire Alarms

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2026, 31(9), pp.151~161
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : July 21, 2026
  • Accepted : September 14, 2026
  • Published : September 30, 2026

Miseo Kim 1,  Eun-Jin Kim 2,  Young-Seob Jeong 2

1(주)에프에스
2충북대학교

Accredited

ABSTRACT

This study proposes a DINOv2-Swin ensemble model based on Transformers to improve outdoor fire detection accuracy and address the persistent issue of Unwanted Fire Alarms (UFAs). Outdoor environments pose challenges for precise detection due to vast areas and complex backgrounds, leading to high false alarm rates. To overcome this, we combined the strengths of DINOv2 for global visual feature extraction and the Swin Transformer for localized pattern recognition. To evaluate practical applicability, 1-FPR — i.e., specificity (true negative rate), computed as one minus the false positive rate — was adopted as a key metric alongside accuracy to assess the suppression of false alarms. Experimental results using the FLAME (Fire Luminosity Analysis in Multispectral Images) dataset demonstrated that the DINOv2-Swin model achieved an accuracy of 81.21% and a 1-FPR of 94.31%, representing a 4.98%p improvement in accuracy over the previous Xception-based approach. Furthermore, additional evaluation on the external D-Fire dataset provided evidence of the model's cross-dataset generalization potential. Overall, this research suggests that an image-based Transformer ensemble can help reduce UFAs, with potential applicability to firefighting response efficiency and future intelligent fire surveillance systems.

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This paper was written with support from the National Research Foundation of Korea.