Figure 4

The upper plot shows a rain cloud plot of the minimum Euclidean distances between all 27 3DFUS bone segmentation trials and the laser scan of the measurement phantom (ground truth). Rain cloud plots combine an illustration of data distribution (probability density function), jittered raw data, and a boxplot (with the median)37. The lower plot shows a heatmap of the Euclidean distances between the measurement phantom and one single 3DFUS bone segmentation trial. Red colors show greater differences and blue colors smaller ones. The attached cluster of three markers served as a common reference system between the laser scan and the 3DFUS data.