Examples of photoset dense point clouds using 3D, 4D, and Fixed-Floating alignment approaches.

Examples of photoset dense point clouds using the (a) 3D, (b) 4D, and (c) FF alignment approaches. Scale is the same for all three panels. Although there are subtle shifts vertically and horizontally between each of the dense point cloud products, these small offsets are not easily distinguishable unless data are viewed simultaneously.