Abstract: A method for determining the alteration of the shape of a three-dimensional object from at least one two-dimensional image of the object, wherein the original three-dimensional model shape of the object is known—or is ascertained from the at least one two-dimensional image of the object. The three-dimensional model shape is rotated such that at least one two-dimensional projection of the three-dimensional model shape matches or resembles at least one partial area or contour of the at least one two-dimensional image of the object, and the area or areas are ascertained in which the at least one two-dimensional image of the object deviates from the two-dimensional projection(s) of the three-dimensional model shape, wherein the deviating two-dimensional area or areas are identified as deformed areas and, after the deformed area or areas have been back-projected onto the three-dimensional model shape, the three-dimensional deformation of the three-dimensional object is ascertained.

Abstract: In the embodiment disclosed in the specification, a speed change arrangement for vehicles has a mechanical toothed gear with several gear pairs that can be shifted as desired, and having a simple planet gear engaged with at least one gear pair to offer at least one additional transmission stage, having an input element, an output element, and an additional element, connectable in a first shift position by means of an hydraulically operated multi-disc brake with the surrounding housing, and in a second shift position by means of an hydraulically operated multi-disc clutch with one of the other elements. To provide this arrangement is the smallest space and at minimum expense, a disc support is connected via a first toothing with a portion of the discs of the disc brake, and via a second toothing with a portion of the discs of the disc clutch, and which is connected with an operating piston, pressurizable on either side, for the selective engagement of the disc brake and the disc clutch.