Abstract: A method for identifying a panoramic optical system enables its intrinsic characteristics to be semi-automatically or automatically determined so as to be able to subsequently apply the digital processes for appropriate corrections of the perspectives and distortions specific to the identified panoramic optical system. The panoramic optical system has a marking device visible from outside through a front lens, allowing identification by an operator, and/or a marking device directly projected on the image plane through the optical system, for automatic identification and calibration.

Abstract: A method for correcting the color of a digital panoramic image obtained uses at least one initial wide-angle image the image points of which are transferred into a three-dimensional coordinate system. The method includes inserting a color-grading zone into the initial image at the time of the exposure, the grading zone comprising at least three primary colors combined or presented in the form of a sequence of colors; detecting the color-grading zone in the panoramic image, performed by means of a digital image analysis algorithm; and correcting the colors of the image points of the digital panoramic image, performed with reference to the primary colors present in the grading zone.