By Ying-Lie O, Alexander Toet, David Foster, Henk J. A. M. Heijmans, Peter Meer (auth.), Ying-Lie O, Alexander Toet, David Foster, Henk J. A. M. Heijmans, Peter Meer (eds.)

ISBN-10: 3642081886

ISBN-13: 9783642081880

ISBN-10: 366203039X

ISBN-13: 9783662030394

The fields of photograph research, machine imaginative and prescient, and synthetic intelligence all utilize descriptions of form in grey-level photos. such a lot present algorithms for the automated attractiveness and category of specific shapes were devel­ oped for particular reasons, with the end result that those tools are frequently limited of their software. using complicated and theoretically well-founded math­ ematical equipment should still bring about the development of strong form descriptors having extra normal program. form description should be considered as a gathering aspect of imaginative and prescient study, arithmetic, computing technological know-how, and the applying fields of photo analy­ sis, desktop imaginative and prescient, and synthetic intelligence. The NATO complicated study Workshop "Shape in photo" used to be organised with a twofold goal: first, it's going to offer all individuals with an outline of suitable advancements in those varied disciplines; moment, it may stimulate researchers to interchange unique effects and concepts around the limitations of those disciplines. This booklet contains a generally drawn choice of papers provided on the workshop, and lots of contributions were revised to mirror additional development within the box. the point of interest of this assortment is on mathematical ways to the development of form descriptions from grey-level pictures. The publication is split into 5 components, every one dedicated to a distinct self-discipline. every one half includes papers that experience instructional sections; those are meant to aid the reader in changing into accustomed to the range of ways to the problem.

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Additional info for Shape in Picture: Mathematical Description of Shape in Grey-level Images

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Similarly, a voxel is a three-dimensional cell. a b c Fig. 2 . -dimensional, (b) 2-dimensional, (c) 3-dimensional The topological structure of an ACC is defined by Definition 2. A subset S of E is called open in C if for every element e' of S, all elements of C which are bounded bye' are also in S . It has been shown [7] that for any finite topological space there exists an ACC having an equivalent topological structure. A particular feature of ACCs is, however, the presence of the dimension function.

A digital image is given as a two- or three-dimensional array with grey values (densities) assigned to each pixel (voxel). Results of the segmentation of the image into quasi-homogeneous segments are also given as segment labels assigned to each pixel (voxel). The problem of labelling connected components consists of assigning to each pixel (voxel) of the image the identification number of the component to which it belongs. The well-known solution for two-dimensional binary images [13] is as follows.

Finite topology as applied to image analysis, Computer Vision, Graphics and Image Processing 46, pp. 141-161. 14. Morris, S. , Topology Without Tears, available from author, Dean oflnformatics, University of Wollongong, Wollongong, NSW, 2500, Australia. 15. Munkres, J. R. (1975). Topology: A First Course, Prentice-Hall, Englewood Cliffs, NJ. 16. Rosenfeld, A. (1979). Picture Languages, Academic Press, NY. 17. Simmons, G. F. (1983). Introduction to Topology and Modern Analysis, Krieger, Malabar, FL.

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Shape in Picture: Mathematical Description of Shape in Grey-level Images by Ying-Lie O, Alexander Toet, David Foster, Henk J. A. M. Heijmans, Peter Meer (auth.), Ying-Lie O, Alexander Toet, David Foster, Henk J. A. M. Heijmans, Peter Meer (eds.)


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