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Object digitization up to a translation. (English) Zbl 1390.68724

Summary: This paper presents a study on the set of the digitizations generated by all the translations of a planar body on a square grid. First the translation vector set is reduced to a bounded subset, then the dual introduced in [the authors, Lect. Notes Comput. Sci. 9647, 59–70 (2016; Zbl 1390.68706)] linking the translation vector to the corresponding digitization is proved to be piecewise constant. Finally, a new algorithm is proposed to compute the digitization set using the dual.

MSC:

68U05 Computer graphics; computational geometry (digital and algorithmic aspects)
68U10 Computing methodologies for image processing

Citations:

Zbl 1390.68706

References:

[1] Baudrier, Étienne; Mazo, Loïc, Curve digitization variability, (Normand, N.; Guédon, J.; Autrusseau, F., Proc 19th IAPR Int Conf on Discrete Geometry for Computer Imagery: DGCI 2016. Proc 19th IAPR Int Conf on Discrete Geometry for Computer Imagery: DGCI 2016, Lect. Notes Comput. Sci., vol. 9647 (2016), Springer), 59-70 · Zbl 1390.68706
[2] Dorst, Leo; Smeulders, Arnold W. M., Discrete representation of straight lines, IEEE Trans. Pattern Anal. Mach. Intell., PAMI-6, 4, 450-463 (1984) · Zbl 0545.68097
[3] Huxley, Martin N.; Žunić, Jovisa, Different digitisations of displaced discs, Found. Comput. Math., 6, 2, 255-268 (2006) · Zbl 1119.11059
[4] Huxley, Martin N.; Žunić, Jovisa, The number of N-point digital discs, IEEE Trans. Pattern Anal. Mach. Intell., 29, 1, 159-161 (2007)
[5] Huxley, Martin N.; Žunić, Jovisa, The number of different digital N-discs, J. Math. Imaging Vis., 56, 3, 403-408 (2016) · Zbl 1348.11073
[6] David, G. Kendall, On the number of lattice points inside a random oval, Q. J. Math., 19, 1-26 (1948) · Zbl 0031.11201
[7] Nagy, Benedek, An algorithm to find the number of the digitizations of discs with a fixed radius, Electron. Notes Discrete Math., 20, 607-622 (2005) · Zbl 1179.94016
[8] Stelldinger, Peer; Köthe, Ullrich, Towards a general sampling theory for shape preservation, Image Vis. Comput., 23, 2, 237-248 (2005) · Zbl 1118.68742
[9] Tajine, Mohamed; Ronse, Christian, Topological properties of Hausdorff discretization, and comparison to other discretization schemes, Theor. Comput. Sci., 283, 1, 243-268 (2002) · Zbl 1052.68134
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