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arXiv 2309.02001cs.CVcs.AIcs.LG
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针对MICCAI KiTS23挑战赛使用额外数据时的域偏移分析

Analyzing domain shift when using additional data for the MICCAI KiTS23 Challenge

Sentic Lab(森蒂克实验室)

George Stoica, Mihaela Breaban, Vlad Barbu

AI总结:

针对医学图像3D分割任务中额外训练数据与原始数据存在域偏移的问题,研究改善域偏移的技术,发现直方图匹配变换额外数据的效果优于简单归一化,助力MICCAI KiTS23挑战赛数据利用。

摘要:

众所周知,使用额外训练数据可提升模型效果,在医学图像三维分割任务中尤其如此——这类任务训练数据匮乏,模型需基于少量可用数据实现良好泛化。但新增数据可能由其他设备采集,且经预处理后其分布与原始训练数据存在显著差异。因此,我们研究了可在训练过程中改善域偏移的技术,让额外数据能更好地与原始数据一同用于预处理和训练。实验结果表明,采用直方图匹配变换额外数据的效果优于使用简单归一化的方法。

英文摘要:

Using additional training data is known to improve the results, especially for medical image 3D segmentation where there is a lack of training material and the model needs to generalize well from few available data. However, the new data could have been acquired using other instruments and preprocessed such its distribution is significantly different from the original training data. Therefore, we study techniques which ameliorate domain shift during training so that the additional data becomes better usable for preprocessing and training together with the original data. Our results show that transforming the additional data using histogram matching has better results than using simple normalization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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