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This paper suggests combining a number of alternative curve representations to form a hierarchy of increasing specificity, ranging from qualitative through to quantitative representations. Different levels provide different trade-offs between the various desirable but mutually incompatible properties of shape representations. Depending on the application, the model and image curves may be represented by the complete hierarchies or by the subset of the representations for each sub-section that is most appropriate in terms of robustness and flexibility. Each representation needs to be applied at the scales which isolate important structures, and so the curve's natural scales are selected by an automated process. This multi-scale analysis produces a hierarchy of parts, and thus a hierarchy of hierarchies is formed.

Additional information

Authors: ROSIN P L, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 2nd International Workshop on Visual Form, Capri (IT), May 30 - June 2, 1994
Availability: Available from (1) as Paper EN 38321 ORA
Record Number: 199410640 / Last updated on: 1994-11-28
Original language: en
Available languages: en