On the Topological Properties of Quantized Spaces, I. The Notion of Dimension
Journal of the ACM (JACM)
Arcs and Curves in Digital Pictures
Journal of the ACM (JACM)
Object discretizations in higher dimensions
Pattern Recognition Letters
Foundations of Image Understanding
Foundations of Image Understanding
Algorithms for Graphics and Imag
Algorithms for Graphics and Imag
3D Line Voxelization and Connectivity Control
IEEE Computer Graphics and Applications
Computer
Digital Geometry: Geometric Methods for Digital Picture Analysis
Digital Geometry: Geometric Methods for Digital Picture Analysis
Curves, hypersurfaces, and good pairs of adjacency relations
IWCIA'04 Proceedings of the 10th international conference on Combinatorial Image Analysis
Formulas for the number of (n-2)-gaps of binary objects in arbitrary dimension
Discrete Applied Mathematics
Combinatorial relations for digital pictures
DGCI'06 Proceedings of the 13th international conference on Discrete Geometry for Computer Imagery
Counting gaps in binary pictures
IWCIA'06 Proceedings of the 11th international conference on Combinatorial Image Analysis
On the notion of dimension in digital spaces
IWCIA'06 Proceedings of the 11th international conference on Combinatorial Image Analysis
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This paper identifies the total number of gaps of object pixels in a binary picture, which solves an open problem in 2D digital geometry (or combinatorial topology of binary pictures). We obtain a formula for the total number of gaps as a function of the number of object pixels (grid squares), vertices (corners of grid squares), holes, connected components, and 2 × 2 squares of pixels. It can be used to test a binary picture (or just one region: e.g., a digital curve) for gap-freeness.