In structural analysis, different tools can be used to measure the position, distance, or vibration of an object. Such instruments can be divided into two basic categories: contact and non-contact instruments. Among the types of non-contact measurements, there are image registration and optical flow techniques. With the use of a camera, it is possible to calculate the real-time movement of all the points of the structure taken up by the camera. With these techniques, while on the one hand, it is possible to obtain the displacement in numerous points of the structure without the need for complex instrumentation, on the other hand, the data obtained are affected by a high level of noise.