Non-contact deformation monitoring system

A deformation monitoring system for measuring deformation of an object 12, the system comprising: a first camera (104a, fig. 2b) arranged to capture a first image of an object; a second camera (104b) arranged to capture a second image of the object, the second camera being in a known orientation relative to the first camera; and a controller (102) arranged to cause the deformation monitoring system to carry out the steps of: imaging the object with the first camera at a first time; imaging the object with the second camera at the first time; determining a first location of a first measurement point 14 on the object at the first time and a first location of a second measurement point 16 on the object at the first time based on the imaging by the first and second cameras at the first time; imaging the object with the first camera at a second time distinct from the first time; imaging the object with the second camera at the second time; determining a location of the first measurement point on the object at the second time and the second measurement point on the object at the second time based on the imaging by the first and second cameras at the second time; and determining a deformation of the object based on the locations of the first and second measurement points at the first and second times.