Multi-class artefact detection in video endoscopy via convolution neural networks

Mohammad Azam Khan, Jaegul Choo

Research output: Contribution to journalConference articlepeer-review


This paper describes our approach for EAD2019: Multi-class artefact detection in video endoscopy. We optimized focal loss for dense object detection based RetinaNet network pretrained with the ImageNet dataset and applied several data augmentation and hyperparmeter tuning strategies, obtaining a weighted final score of 0.2880 for multi-class artefact detection task and mean average precision (mAP) score of 0.2187 with deviation 0.0770 for multi-class artefact generalisation task. In addition, we developed a U-Net based convolutional neural networks (CNNs) for multi-class artefact region segmentation task and achieved a final score of 0.4320 for the online test set in the competition.

Original languageEnglish
JournalCEUR Workshop Proceedings
Publication statusPublished - 2019 Jan 1
Event2019 Challenge on Endoscopy Artefacts Detection: Multi-Class Artefact Detection in Video Endoscopy, EAD 2019 - Venice, Italy
Duration: 2019 Apr 8 → …


  • Artefact generalization
  • Convolutional neural networks
  • Terms— endoscopic artefact
  • Video endoscopy

ASJC Scopus subject areas

  • General Computer Science


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