Figure 2:

Illustration of the proposed FiberMap feature descriptor. (a) gives a step-by-step illustration of FiberMap computation by repeating and flipping the points along a fiber. (b) shows a graphic representation of FiberMap with 3 channels to encode the spatial Right-Anterior-Superior (RAS) coordinates of the fiber points, analogous to a 2D RGB image. An important benefit of FiberMap is that it enables effective processing by CNNs, where additional fiber point spatial information can be accessed including not only neighboring points and other points along the fiber (as illustrated in the yellow highlighted region).