Fig. 3
From: Breast Tissue Organisation and its Association with Breast Cancer Risk
Overview of main analyses. A given breast image is first segmented into four regions: dense (red), semi-dense (yellow), semi-fatty (light blue) and fatty (dark blue) tissue. The spatial relations between each pair of regions is described by a forces histogram. The information captured by each forces histogram is compressed into a small number of variables using a functional principal component analysis and then the association between these variables (representing the spatial organisation of the regions) and breast cancer status is evaluated through a statistical test. PCA principal component analysis