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- W1968377959 abstract "In this paper, we prove a new result of digital topology which states that the digital fundamental group—a notion previously introduced by Kong (Comput. Graphics 13 (1989) 159–166)—is sufficient to characterize topology preservation within digital surfaces. This proof involves a new tool for proving theorems in this field: the intersection number which counts the number of real intersections between two surfels loops lying on a digital surface. The main property of the intersection number and the reason why it is useful is the following: the intersection number between two paths does not change after any continuous deformation applied to the paths." @default.
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- W1968377959 date "2002-06-01" @default.
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- W1968377959 title "Intersection number and topology preservation within digital surfaces" @default.
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- W1968377959 doi "https://doi.org/10.1016/s0304-3975(01)00059-7" @default.
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