Complex sentence: The image, a reflection of the surface on the mirror, is in the form of a doughnut to which software is applied in order to create a flat panoramic picture, such software is normally supplied by the company who produces the system.
Split into simpler sentences: The image, a reflection of the surface on the mirror, is in the form of a doughnut to which software is applied in order to create a flat panoramic picture. Such software is normally supplied by the company who produces the system.