Figure 6
The figure has two panels labeled “(a)” and “(b)”. In panel (a), a light‑blue rectangular plane lies below a parallel light‑orange plane. Four pairs of matching points are drawn, each pair connected by a vertical line between the two planes. Two pairs are black and sit to the right, and one at the left, while the central pair is red, emphasizing one specific correspondence between the planes. In panel (b), the same light‑blue and light‑orange planes intersect along an oblique line instead of being parallel. A red point lies on the intersection line where the two planes meet. To the left, a grey point on the blue plane is connected by a short vertical segment to a corresponding faded point on the orange plane. To the right, a black point on the orange plane hangs above the blue plane, again connected by a vertical segment.Computation of local registration error through averaging of neighbours