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With the wavelet transform,image of multi-angle remote sensing is decomposed into multi-resolution.With data of each resolution,we try target-based multi-stages inversion,taking the inversion result of coarse resolution as the prior information of the next inversion.The result gets finer and finer until the resolution of satellite observation.In this way,the target-based multi-stages inversion can be used in remote sensing inversion of large-scaled coverage.With MISR data,we inverse structure parameters of vegetation in semiarid grassland of the Inner Mongolia Autonomous Region.The result proves that this way is efficient.