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    • 摘要: 针对图像融合难以选择合适的评价指标的问题,通过分析主观评价与客观评价指标之间的相关性,提出一种合成评价指标方法对多波段图像融合结果进行评价。首先,从边缘清晰度、自然感、信息量及综合评价四个方面对多种方法融合结果进行主观评价;其次,用14种常用的客观评价指标对融合结果进行评价;然后,对主客观评价结果分别归一化,并采用斯皮尔曼(Spearman)相关系数分析每种客观评价指标和四种主观评价之间的相关性;最后,根据该相关性分别从四个评价方面,用14种客观指标合成一种综合指标。实验结果表明,综合指标与主观评价的相关性比单项指标或其他合成指标更高。

       

      Abstract: It is difficult to select an appropriate evaluation index for current image fusion. In order to solve the problem, a synthesis evaluation index is proposed based on the correlation between subjective and objective evaluations. First, a variety of fusion results are evaluated subjectively from the edge of clarity, natural sense, information and comprehensive evaluation, respectively. Secondly, 14 commonly objective indexes are used to evaluate the fusion results. Then, the subjective and objective results are normalized, and the Spearman correlation coefficient is used to analyze the correlation between the four subjective evaluations and each objective evaluation. Finally, according to the correlation, a comprehensive index is constructed through 14 objective indexes in 4 aspects. The experimental results show that the synthesis index is more relevant to subjective evaluation than the individual evaluation index and any other comprehensive indexes.