摘要
Many indices have been used to study the environmental change. It is easy to monitor the change if an index provides a linear response to a physical or biophysical parameter. We proposed a spectral reflectance curves-based approach to generate a linearized index. Using multispectral images, we first converted DN to reflectance, used KL transform and fuzzy logic to classify pixels, then determined a mapping function to generate a linearized index. An application of this approach to generate a linearized snow age index is shown in this paper. The linearized index can be further analyzed using time-varying signal analysis techniques to explore the spatial and temporal variations.
原文 | English |
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頁面 | 117-119 |
頁數 | 3 |
出版狀態 | Published - 1994 12月 1 |
事件 | Proceedings of the 1994 International Geoscience and Remote Sensing Symposium. Vol 4 (of 4) - Pasadena, CA, USA 持續時間: 1994 8月 8 → 1994 8月 12 |
Other
Other | Proceedings of the 1994 International Geoscience and Remote Sensing Symposium. Vol 4 (of 4) |
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城市 | Pasadena, CA, USA |
期間 | 94-08-08 → 94-08-12 |
All Science Journal Classification (ASJC) codes
- 電腦科學應用
- 地球與行星科學(全部)