Registration of Partially Focused Images for 2D and 3D Reconstruction of Oversized Samples

Methods of fracture surface 3D reconstruction from a series of partially focused images acquired in a small field of view (e.g., byconfocal microscope or CCD camera) are well known. In this case, projection rays can be considered parallel and recorded imagesdo not differ in any geometrical transformation from each other. In the case of larger samples (oversized for microscope or CCDcamera), it is necessary to use a wider viewing field (e.g., standard cameras); taken images primarily differ in scaling but may alsodiffer in shifting and rotation. These images cannot be used for reconstruction directly; they must be registered; that is, we mustdetermine all transformations in which the images differ and eliminate their effects. There are several ways to do this. This paperdeals with the registration based on phase correlation.