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The Separability and Thresholds (SEaTH) algorithm calculates the the SEparability and the corresponding THresholds of object classes for any number of given features. However, it is applicable only to the normally distributed training data. To cope with the problem, The Classification And Regression Tree (CART) coupled with SEaTH for object-based classification approach is proposed in the paper. The...
Monitoring snow distribution area plays an important role in researching climate change and energy exchange process. Chinese small satellite constellation (abbreviated HJ constellation) is special for environment and disaster continuously monitoring or forecasting. By using HJ-1B CCD and infrared data or only using its infrared data, it can construct NDSI (Normalized Difference Snow Index) or MNDSI...
This study is, on basis of the geochemical survey project of agriculture landing Sichuan province China, to assess the pollution levels of heavy metal in agriculture soil in Weicheng town, Mianyang city. The pollution assessments to soil heavy metals are employed by SF (single factor) and CF (comprehensive factors) pollution index analysis. According to the soil types and terrain in study site, it...
From the standpoint of system engineering, multi-level fuzzy method was used to evaluate the safety of floating bridge. Considering the battlefield tactics factor and technical factor, the index system was built and 8 modules for comprehensive factor influence assessment and 24 modules for specific factor influence assessment were included. Expert evaluation method was used to determine the weight...
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