Abstract: A system and method for measuring the displacement of a surface relative to a base reference, as well as for mapping the displacement of the surface relative to the base reference. A laser scanner generates point cloud data in respect of a measure of the spatial orientation of a distal surface relative to a reference point to define a three-dimensional image of the surface. Reference data is stored in respect of the spatial orientation of a base reference relative to the surface. processing means to process said point cloud data and said base reference data to determine the relative displacement of said surface with respect to said base reference.