We discuss here how to identify how a visual system deals with the intrinsic calibration parameters of the visual sensor, i.e. the eye, in the case of motion perception. In computer vision, such an approach is already well developed, from both a geometric and algebraic points of view. It is now well established in this field that calibration mechanisms related to the camera intrinsic parameters allow to adapt such a perceptual system to incoming information and obtain a robust and significant estimation of the structure and motion parameters of the system itself and the scene. The assumption of this work is that the biological visual perception must also be based on such mechanisms and we have implemented the protocols which allow to verify this hypothesis.