中文摘要：

目前遥感影像辐射质量评价多以目视判读为主,具有很强的主观性。针对如何客观、全面地评价遥感影像辐射质量这一问题,本文研究了一种利用质量相关因素来评价遥感影像辐射质量的度量模型。该模型提取遥感影像的四个因素指标,即亮度、清晰度、信息量和纹理特征,采用相关分析法计算各个因素指标的权值。对于清晰度指标,通过改进梯度函数,研究了新的清晰度提取方法。实验证明,对于多种不同类型的遥感影像,本模型所得的评价结果可较好地符合人眼的视觉感受。该遥感影像辐射质量度量模型能够客观、定量地分析遥感影像辐射质量,同时与主观评价具有一致性。

英文摘要：

Current evaluation methods of remote sensing image radiation quality are mainly based on visual judgment and are,therefore,very subjective.To the problem of how to evaluate remote sensing image radiation quality objectively and comprehensively,this study developed a metric model which employs images qualitycorrelative factors to give a solution.This model extracts four factors,these are brightness,clarity,information and texture feature.The correlation analytical method was used in this research to calculate the weight-value of the four factors.For the clarity factor,a new method that improved gradient function was developed.Experiments have shown that the final evaluation results have a higher consistency of subjective assessment for different types of remote sensing images,and this model can well correlated with human perceptioa The remote sensing image radiation quality metrics model can analysis the quality objectively and quantitatively,and can be well correlated with human perception.