Affiliation:
1. Faculty of Mechanical Engineering, Institute of Materials Science and Engineering, NETME Center, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic
Abstract
This paper deals with3Dreconstructions of series of partially focussed images. Some of these methods are known in case of images which were acquired in small field of view (by confocal microscope or CCD camera, e.g.). In this case, recorded images do not differ in any geometrical transformation from each other. In case of larger samples (oversized for microscope or CCD camera), it is necessary to use wider viewing field (standard cameras, e.g.), and taken images primarily differ in scaling but may also differ in shifting and rotation too. These images cannot be used for reconstruction directly; they must be registered; that is, we must determine all transformations which the images differ and eliminate their effects. There are several ways to do this. This paper deals with the registration based on phase correlation. After this registration, it is necessary to identify the sharp parts and to compose a2Dand3Dmodel. Present methods are very sensitive to noise and their results are not satisfactory in many cases. We introduce a new method for3Dreconstruction which is significantly better.
Funder
Ministry of Education of the Czech Republic
Subject
General Engineering,General Mathematics
Cited by
4 articles.
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