Matching CT images of the skull

In this example, we used two CT images of the skull of the same patient.

A slice of one of the 3D CT images (at eyes level) and all the crest lines extracted on this image.

About 75 lines are matched with more than 4 extremal points among the 550 lines in each image, leading to a total of 550 matched extremal points.

Left: registered front view of all the lines of the two skulls. Middle: registered side view of the 75 line matched. Right: closeup on the registration of the occipital foramen.

On can see that not only the position (change of blue to yellow color on the line) is well preserved but the thihedron part is also very stable.

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