Abstract
Regular 2 × 2/2 curve pyramids are hierarchical symbolic representations of curves that can be constructed and processed in logarithmic time. The rigidity of the regular structure causes drawbacks that were overcome by extending the concept to irregular pyramids. These have a structure that adapts to the image data by deriving control information from curve relations. The algorithm that builds the irregular curve pyramid goes far beyond merely solving the shift variance problem. It allows the definition of rules for the control that image data holds on the structure of the pyramid. These rules can be used to reflect the importance of local elements of shape with respect to a given application.
This work was supported by the Austrian Science Foundation under grant P 8785.
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© 1994 Springer-Verlag Berlin Heidelberg
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Kropatsch, W.G., Willersinn, D. (1994). Irregular Curve Pyramids. In: O, YL., Toet, A., Foster, D., Heijmans, H.J.A.M., Meer, P. (eds) Shape in Picture. NATO ASI Series, vol 126. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-03039-4_38
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DOI: https://doi.org/10.1007/978-3-662-03039-4_38
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