Movement detection device

A method for processing high-frequency movements in an optronic system comprising an image sensor functioning with a first signal acquisition frequency, each image obtained by the image sensor representing a scene,

• wherein the method comprises:
• obtaining signal values representing a movement of said scene from a movement detection device generating signal values representing movements that can affect the acquisition of images by the image sensor with a second signal acquisition frequency, higher than the first signal acquisition frequency,
• determining values representing a movement of an image in the course of acquisition by the image sensor from said signal values representing a movement of said scene, said determination comprising a matrix operation between said signal values representing a movement of said scene and a conversion matrix, the conversion matrix being obtained by an obtaining method comprising a simulation of signals representing movements obtained by the movement detection device, the obtaining method taking into account characteristics of the movement detection device, and
• transmitting the values representing a movement of the image being acquired by the image sensor that is determined to a movement compensation device so that said movement compensation device can implement a feedback in the optronic system in order to compensate the movement of the image in the course of acquisition by the image sensor.