Figure 2
From: The importance of feature aggregation in radiomics: a head and neck cancer study

For each patient \(P_i\), the 42 feature maps are concatenated into a matrix where each coefficient voxel of the ROI is a 42-dimensional vector.
From: The importance of feature aggregation in radiomics: a head and neck cancer study

For each patient \(P_i\), the 42 feature maps are concatenated into a matrix where each coefficient voxel of the ROI is a 42-dimensional vector.