핵심 개념
Proposing a method using domain adaptation to correct sampling selection errors in tumor segmentation from sparse annotations, reducing labeling and training time significantly.
초록
The article introduces a new method utilizing transfer learning techniques to address sampling errors in tumor segmentation due to sparse annotations. It highlights the challenges of manual segmentation for gliomas and the need for automated approaches. The proposed method aims to create high-quality classifiers from sparse annotations, validated on multi-modal MR images. Domain adaptation is used to correct sampling bias, improving accuracy while reducing labeling and training time significantly.
The content is structured as follows:
- Introduction to automated brain tumor segmentation.
- Limitations of learning-based approaches due to manual segmentations.
- Challenges in creating complete segmentations due to unclear borders and similar tissue appearances.
- Previous studies avoiding supervised learning based on manual segmentations.
- Methods for improving segmentation quality through tools and fusion techniques.
- Challenges in MRI standardization leading to the need for repeated annotations with hardware or sequence changes.
- Introduction of incomplete segmentations to reduce labeling times.
- Proposal of a new approach using sparse and unambiguous annotations with domain adaptation correction.
- Explanation of domain adaptation compensating for sampling bias between training and test data distributions.
- Comparison with traditional classifiers trained on gold standard reference segmentations.
- Validation on labeled patient data and BraTS 2013 challenge datasets.
통계
現在の学習ベースの自動組織分類アプローチの実用性を著しく向上させることができます。
ラベリング時間を70倍以上削減します。
完全な注釈から学習する方法と比較して、トレーニングおよび予測時間を180倍以上削減します。
인용구
"Learning on reduced training data results in a drop in the quality of the prediction results."
"The proposed domain adaptation successfully compensates this disproportion of label representations in the training data."