1. Process for optical coherence tomography, comprising: recording a plurality of first OCT slice images, each first slice image representing a different slice of an object; ascertaining a reference figure that is representative of the three-dimensional contour of at least one structural feature of the object in a given three-dimensional coordinate system by feature recognition of the at least one structural feature in the first slice images; recording a plurality of second OCT slice images, each second slice image representing a different slice of the object, a time period for recording a second slice image is longer than a time period for recording a first slice image; displacing at least a fraction of the slice images in the coordinate system until each second slice image is in feature overlap with the reference figure; and generating a set of three-dimensional OCT image data at least from the feature-overlapped second slice images.