Abstract
Scale is one of the most important but unsolved issues in various scientific disciplines. This chapter tackles the multi-scale issues in modelling and representation of geo-spatial data. First concepts of scale, multi-scale and transformation in scale are clarified. Then discussions are conducted on the multi-scale modelling and representation of digital map data, digital terrain models (DTM) and digital images. For digital maps, the development of low-level operations/algorithms and high-level rules are reviewed and a set of 40 operations are identified. For digital image and DTM data, the techniques for achieving multi-scale representation are described, multi-scale effects are illustrated with cases and the determination of optimum scale is also addressed.
| Original language | English |
|---|---|
| Title of host publication | Advances in Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Subtitle of host publication | 2008 ISPRS Congress Book |
| Pages | 265-278 |
| Number of pages | 14 |
| Publication status | Published - 1 Dec 2008 |
| Event | International Society for Photogrammetry and Remote Sensing Congress - Beijing, China Duration: 3 Jul 2008 → 11 Jul 2008 |
Conference
| Conference | International Society for Photogrammetry and Remote Sensing Congress |
|---|---|
| Country/Territory | China |
| City | Beijing |
| Period | 3/07/08 → 11/07/08 |
Keywords
- Multi-scale modelling
- Representation
- Resolution
- Spatial data
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Vision and Pattern Recognition
- Information Systems