pyradiomics特征提取报错‘Image/Mask geometry mismatch. ‘

最新推荐文章于 2024-09-13 21:59:24 发布

原创最新推荐文章于 2024-09-13 21:59:24 发布 · 2.1k 阅读

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在使用PyRadiomics进行特征提取时遇到ValueError，提示Image/Mask geometry mismatch。解决方案是在Params.yaml设置文件中增加geometryTolerance参数，将其值适当增大，如设置为1e-5，以允许图像和掩模之间的小范围几何差异。这有助于解决因图像和掩模边界不完全匹配导致的问题。

报错详情：

ValueError: Image/Mask geometry mismatch. Potential fix: increase tolerance using geometryTolerance, see Documentation:Usage:Customizing the Extraction:Settings:geometryTolerance for more information

Traceback (most recent call last):
  File "D:\project\mri_svm\4_feature_extraction.py", line 29, in <module>
    result = extractor.execute(mri_path, label_path)  # 提取特征
  File "D:\Anaconda\envs\jspt\lib\site-packages\pyradiomics-3.0.1.post15+g2791e23-py3.9-win-amd64.egg\radiomics\featureextractor.py", line 276, in execute
    boundingBox, correctedMask = imageoperations.checkMask(image, mask, **_settings)
  File "D:\Anaconda\envs\jspt\lib\site-packages\pyradiomics-3.0.1.post15+g2791e23-py3.9-win-amd64.egg\radiomics\imageoperations.py", line 243, in checkMask
    raise ValueError('Image/Mask geometry mismatch. Potential fix: increase tolerance using geometryTolerance, '
ValueError: Image/Mask geometry mismatch. Potential fix: increase tolerance using geometryTolerance, see Documentation:Usage:Customizing the Extraction:Settings:geometryTolerance for more information

解决方法：

参考官方文档中关于setting的介绍：Customizing the Extraction

在参数文件 Params.yaml 中的 setting: 部分添加 geometryTolerance 参数，见代码段最后一行。

setting:
  binWidth: 25
  label: 1
  interpolator: 'sitkBSpline'
  resampledPixelSpacing: 
  weightingNorm: 
  geometryTolerance: 1e-5

geometryTolerance参数默认为1e-16, 根据需要改大一些。

pyradiomics特征提取报错‘Image/Mask geometry mismatch. ‘

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