Land cover classification of finer resolution remote sensing data integrating temporal features from time series coarser resolution data

摘要

Land cover classification of finer resolution remote sensing data is always difficult to acquire high-frequency time series data which contains temporal features for improving classification accuracy. This paper proposed a method of land cover classification with finer resolution remote sensing data integrating temporal features extracted from time series coarser resolution data. The coarser resolution vegetation index data is first fused with finer resolution data to obtain time series finer resolution data. Temporal features are extracted from the fused data and added to improve classification accuracy. The result indicates that temporal features extracted from coarser resolution data have significant effect on improving classification accuracy of finer resolution data, especially for vegetation types. The overall classification accuracy is significantly improved approximately 4％ from 90.4％ to 94.6％ and 89.0％ to 93.7％ for using Landsat 8 and Landsat 5 data, respectively. The user and producer accuracies for all land cover types have been improved.