Abstract
Scale is one of the most important but unsolved issues in various scientific disciplines. This chapter tackles systematically the issues related to scale in terrain modelling and analysis. It starts with some discussions on the notions of scale and multi-scale. Then three approaches for the multi-scale representation of terrain surface are presented, i.e. critical-points-based, smoothing-based, and scale-driven. Principles are explained and algorithms presented. Two issues of multi-scale terrain analysis are discussed, i.e. the modelling of multi-scale effects, and the optimization of scale. Examples are given to illustrate the concepts and principles discussed. Finally, some concluding remarks are made.
| Original language | English |
|---|---|
| Pages (from-to) | 59-83 |
| Number of pages | 25 |
| Journal | Lecture Notes in Geoinformation and Cartography |
| Issue number | 199049 |
| DOIs | |
| Publication status | Published - 1 Jan 2008 |
| Event | Conference on Terrain Analysis and Digital Terrain Modelling, 2006 - Nanjing, China Duration: 23 Nov 2006 → 25 Nov 2006 |
Keywords
- Multi-resolution
- Multi-scale
- Optimization
- Scale
- Scale effect
- Terrain analysis
- Terrain representation
- Variable resolution
ASJC Scopus subject areas
- Civil and Structural Engineering
- Geography, Planning and Development
- Earth-Surface Processes
- Computers in Earth Sciences