Abstract
Change detection is an important application of remote sensing. This paper presents our approach to retrieve and represent interesting shapes in the remotely sensed imagery using supervised classification, edge detection, and polygonal approximation techniques, and to compare the shape similarity by a computationally efficient metric. The experiments were conducted on a time series of calibrated and registered Landsat MSS images, covering the scence of the lakes at the western Nebraska. The results show the effectiveness of the shape-based change detection approach, which is potentially useful for specific applications such as the study of the lake change response to short or long term climatic variation and flood or drought monitoring.
Original language | English (US) |
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Pages | 1035-1037 |
Number of pages | 3 |
State | Published - 2002 |
Event | 2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) - Toronto, Ont., Canada Duration: Jun 24 2002 → Jun 28 2002 |
Other
Other | 2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) |
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Country/Territory | Canada |
City | Toronto, Ont. |
Period | 6/24/02 → 6/28/02 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- General Earth and Planetary Sciences