基于Contourlet统计特性的无参考图像质量评价

No-reference quality assessment based on the statistics in Cntourlet domain

利用Contourlet统计特征建立自然统计模型与待评价图像模型,提出了Contourlet域无参考图像质量评价方法(SCIQA)。通过在主观数据库上的实验表明,无论同种干扰类型的图像还是多种干扰图像集合,SCIQA均明显优于经典全参考算法和通用型无参考算法,并且具有较强的通用性。

The statistic features in Cntourlet domain are employed to build the natural statistic model and the tested image model first.Then a no-reference assessment algorithm in Contourlet domain（SCIQR）is proposed.Experiment results on subjective databases show that SCIQR outperforms the classical full-reference image quality assessment algorithm and the universal no-reference algorithm nomatter on single distortion type images and on the set of different types of distortion images.This demonstrates that SCIQR has good universality.