1. A method for correction of movement artifacts in a computed tomography image that is reconstructed from a plurality of computed tomography projection images, the method comprising: determining, by a global optimization method with a processor, an average position of an examination area of an examination object in the reconstructed image volume using all projection images of the plurality of computed tomography projection images; and estimating, with the aid of at least one image volume block that is formed from predeterminable projection images, a movement of the examination area of the examination object in the at least one image volume block using an optimization method.