Abstract | ||
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We present a new approach to the computation of scalable image derivative operators, based on the finite element method, that addresses the issues of method, efficiency and scale-adaptability. The design procedure is applied to the problem of approximating scalable differential operators within the framework of Schwartz distributions. Within this framework, the finite element approach allows us to define a device space in which scalable image derivative operators are implemented using a combination of piecewise-polynomial and Gaussian basis functions.Here we illustrate the approach in relation to the problem of scale-space edge detection, in which significant scale-space edge points are identified by maxima of existing edge-strength measures that are based on combinations of scale-normalised derivatives. We partition the image in order to locally identify approximate ranges of scales within which significant edge points may exist, thereby avoiding unnecessary computation of edge-strength measures across the entire range of scales. |
Year | DOI | Venue |
---|---|---|
2002 | 10.1007/3-540-46043-8_109 | International Conference on Computational Science (1) |
Keywords | Field | DocType |
significant scale-space edge point,scale-space edge detection,scalable image,finite element approach,finite element method,edge-strength measure,device space design,scalable differential operator,new approach,derivative operator,efficient scale-space edge detection,significant edge point,finite element,scale space,differential operators,edge detection | Topology,Computer science,Edge detection,Image processing,Scale space,Finite element method,Gaussian,Operator (computer programming),Scalability,Computation | Conference |
Volume | ISSN | ISBN |
2329 | 0302-9743 | 3-540-43591-3 |
Citations | PageRank | References |
15 | 0.92 | 6 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Bryan W. Scotney | 1 | 670 | 82.50 |
Sonya Coleman | 2 | 216 | 36.84 |
M. G. Herron | 3 | 44 | 5.21 |