Object detection in infrared images using modified YOLOv4 models and an image enhancement module

Dan Wang, Huiqian Du*, Zhifeng Ma

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Deep learning-based object detection approaches have shown excellent performance in RGB images. However, when used to detect objects from infrared images, the accuracy may reduce significantly due to low contrast, obscure textures and strong noise of infrared images. To alleviate the problem, we design a detail enhancement module involving spatial attention mechanism to enhance the textures and details of images. The output of the proposed module is fed into modified YOLOv4. We introduce Alpha-IoU loss and Weighted-NMS to YOLOv4 to enhance geometric factors in both bounding box regression and Non-Maximum Suppression, leading to notable gains of average precision. The experiment results show that compared with YOLOv4, mAP0.5 and mAP0.5:0.95 of our model are improved by 1.1% and 3.5% respectively, effectively improving the detection accuracy.

Original languageEnglish
Title of host publicationFourteenth International Conference on Graphics and Image Processing, ICGIP 2022
EditorsLiang Xiao, Jianru Xue
PublisherSPIE
ISBN (Electronic)9781510666313
DOIs
Publication statusPublished - 2023
Event14th International Conference on Graphics and Image Processing, ICGIP 2022 - Nanjing, China
Duration: 21 Oct 202223 Oct 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12705
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference14th International Conference on Graphics and Image Processing, ICGIP 2022
Country/TerritoryChina
CityNanjing
Period21/10/2223/10/22

Keywords

  • attention
  • infrared images
  • object detection

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