一种X射线环焊缝图像质量评价方法

为了缩小增强后环焊缝图像质量主客观评价的差距,提出了一种基于人眼视觉的无参考质量评价指标。通过分析人眼的视觉特性,建立图像模糊评价模型,设定主观评价方法;主客观评价值进行曲线拟合,经验证,评价结果与主观评价结果具有线性拟合关系,评价结果接近人眼最佳视觉,验证了评价指标的可行性。

An Image quality Evaluation method for X-ray Ring Weld seam

in order to narrow the gap between subjective and objective evaluation of image quality of enhanced rear circumferential weld, a non-reference quality evaluation index based on human vision is proposed in this paper. Through the analysis of the visual characteristics of the human eye, the fuzzy evaluation model of the image is established and the subjective evaluation method is set up. The subjective and objective evaluation value is fitted by curve fitting. It is verified that the evaluation results have a linear fitting relationship with the subjective evaluation results, and the evaluation results are close to the best vision of the human eye, which verifies the feasibility of the evaluation index.