Mr. Svjatoslav Ponomarev Profile

Svjatoslav Ponomarev

at SI Vavilov State Optical Institute

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Proceedings Article | 13 October 2015 Paper

Automatic structural matching of 3D image data

Svjatoslav Ponomarev, Vadim Lutsiv, Igor Malyshev

Proceedings Volume 9649, 96490M (2015) https://doi.org/10.1117/12.2194312

KEYWORDS: 3D image processing, 3D modeling, Transform theory, Image segmentation, Image sensors, Aerospace engineering, Sensors, Image analysis, Photography, Image registration

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A new image matching technique is described. It is implemented as an object-independent hierarchical structural juxtaposition algorithm based on an alphabet of simple object-independent contour structural elements. The structural matching applied implements an optimized method of walking through a truncated tree of all possible juxtapositions of two sets of structural elements. The algorithm was initially developed for dealing with 2D images such as the aerospace photographs, and it turned out to be sufficiently robust and reliable for matching successfully the pictures of natural landscapes taken in differing seasons from differing aspect angles by differing sensors (the visible optical, IR, and SAR pictures, as well as the depth maps and geographical vector-type maps). At present (in the reported version), the algorithm is enhanced based on additional use of information on third spatial coordinates of observed points of object surfaces. Thus, it is now capable of matching the images of 3D scenes in the tasks of automatic navigation of extremely low flying unmanned vehicles or autonomous terrestrial robots. The basic principles of 3D structural description and matching of images are described, and the examples of image matching are presented.

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