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In this paper, we propose a novel formulation for building accurate pixel-wise alignments between remote sensing images under non-rigid distortions. Our formulation involves two variables: the first is a discrete displacement flow field similar to optical flow which controls the pixel-wise correspondence and allows piecewise smoothness, while the second is a continuous spatial transformation which...
Land cover change detection is a comprehensive procedure involved with several interlinked steps. As a large number of change detection algorithms have been developed depending on different requirements, it becomes difficult for common end-users to select an appropriate change detection workflow. To address the challenge, this paper presents an online land cover change detection system with web service...
The reflectance of red and near infrared bands has proved to be sensitive to water depth. This paper takes four sections in Jiangsu Coastal Zone as a typical study area. Different models for retrieval of water depth have been evolved based on analysis of the ETM image and field measurements of the research area. Then, water depth was computed by depth retrieval model and the accuracy of predicted...
Supervised classification, visual modification and decision tree classification method was used in the research on grassland desertification in Shenzha county. The classification results were obtained through the 1990s and the 2000 TM/ETM remote sensing image, and the author carried out overlay analysis, extracted change information. The research shows that ShenZha county grassland desertification...
Due to the multi-scattering and the spectral difference between the covers and the selected end members, the solutions of Linear Models (LM) are not accurate enough. The accuracy estimating factors, namely the RMES (Residual Meaning Errors) of LM, are generally used to describe the regression status of two datasets. However, it can not be used to estimate the reasonableness of the LM solutions, even...
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