Team Westwood Solution for MIDOG 2025 Challenge: An Ensemble-CNN-Based Approach For Mitosis Detection And Classification

Fuente: arXiv
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Main Authors: Xu, Tengyou, Yang, Haochen, Chen, Xiang 'Anthony', Gu, Hongyan, Haeri, Mohammad
Format: Preprint
Published: 2025
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_version_ 1866912773866258432
author Xu, Tengyou
Yang, Haochen
Chen, Xiang 'Anthony'
Gu, Hongyan
Haeri, Mohammad
author_facet Xu, Tengyou
Yang, Haochen
Chen, Xiang 'Anthony'
Gu, Hongyan
Haeri, Mohammad
contents This abstract presents our solution (Team Westwood) for mitosis detection and atypical mitosis classification in the MItosis DOmain Generalization (MIDOG) 2025 challenge. For mitosis detection, we trained an nnUNetV2 for initial mitosis candidate screening with high sensitivity, followed by a random forest classifier ensembling predictions of three convolutional neural networks (CNNs): EfficientNet-b3, EfficientNet-b5, and EfficientNetV2-s. For the atypical mitosis classification, we trained another random forest classifier ensembling the predictions of three CNNs: EfficientNet-b3, EfficientNet-b5, and InceptionV3. On the preliminary test set, our solution achieved an F1 score of 0.7450 for track 1 mitosis detection, and a balanced accuracy of 0.8722 for track 2 atypical mitosis classification. On the final test set, our solution achieved an F1 score of 0.6972 for track 1 mitosis detection, and a balanced accuracy of 0.8242 for track 2 atypical mitosis classification.
format Preprint
id arxiv_https___arxiv_org_abs_2509_02600
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Team Westwood Solution for MIDOG 2025 Challenge: An Ensemble-CNN-Based Approach For Mitosis Detection And Classification
Xu, Tengyou
Yang, Haochen
Chen, Xiang 'Anthony'
Gu, Hongyan
Haeri, Mohammad
Image and Video Processing
Computer Vision and Pattern Recognition
This abstract presents our solution (Team Westwood) for mitosis detection and atypical mitosis classification in the MItosis DOmain Generalization (MIDOG) 2025 challenge. For mitosis detection, we trained an nnUNetV2 for initial mitosis candidate screening with high sensitivity, followed by a random forest classifier ensembling predictions of three convolutional neural networks (CNNs): EfficientNet-b3, EfficientNet-b5, and EfficientNetV2-s. For the atypical mitosis classification, we trained another random forest classifier ensembling the predictions of three CNNs: EfficientNet-b3, EfficientNet-b5, and InceptionV3. On the preliminary test set, our solution achieved an F1 score of 0.7450 for track 1 mitosis detection, and a balanced accuracy of 0.8722 for track 2 atypical mitosis classification. On the final test set, our solution achieved an F1 score of 0.6972 for track 1 mitosis detection, and a balanced accuracy of 0.8242 for track 2 atypical mitosis classification.
title Team Westwood Solution for MIDOG 2025 Challenge: An Ensemble-CNN-Based Approach For Mitosis Detection And Classification
topic Image and Video Processing
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2509.02600