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- W3124418612 abstract "Automatic lesion detection from computed tomography (CT) scans is an important task in medical diagnosis. However, three frequent properties of medical data make CT lesion detection a challenging task: (1) Scale variance: Large scale variation is across lesion instances. Especially, it is extremely difficult to detect small lesions; (2) Imbalanced data: The data distributions are highly imbalanced, where few classes account for the majority of data; (3) Prediction stability: Based on our observations, an input lesion image with slightly pixel shift or translation can lead to drastic output mispredictions and this is not allowed for medical applications. To address these challenges, this paper proposes a Robust One-Stage Network (ROSNet) for robust CT lesion detection. Specifically, a novel nested structure of neural networks is developed to generate a series of feature pyramids for detecting CT lesions in various scales, an effective data sensitive class-balanced loss as well as a shift-invariant downsampling strategy are also introduced to improve the detection performance. Experiments are conducted on a large-scale and diverse dataset, DeepLesion, showing that ROSNet outperforms the best performance in MICCAI 2019 by 3.95% (2-class detection task) and 25.41% (8-class detection task) in terms of mean average precision (mAP)." @default.
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- W3124418612 date "2021-04-01" @default.
- W3124418612 modified "2023-10-16" @default.
- W3124418612 title "ROSNet: Robust one-stage network for CT lesion detection" @default.
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- W3124418612 doi "https://doi.org/10.1016/j.patrec.2021.01.011" @default.
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