摘要
针对X射线图像增强器所成图像动态范围小的缺点,提出一种基于多分辨率图像融合的动态范围扩展方法。通过小波变换,将两幅不同管电压条件下采集的X射线图像融合为一幅图像,以扩展单幅X射线图像的动态范围。试验结果显示,与两幅源图像相比,融合图像的动态范围得到显著扩展,各项量化指标均优于射线管电压取两次采集时的中间值的射线图像。
The dynamic range of images produced by X-ray image intensifier is always not wide enough.So a dynamic range extending technique of X-ray images was raised.Two X-ray images with different tube voltages were fused through digital wavelet transform to extend the dynamic range of the single one.The experimental results showed that dynamic range could be extended well by the technique.Comparing with the X-ray image whose tube voltage was the median,the fusion image was better in quantitative indicators.
出处
《无损检测》
2010年第12期918-920,925,共4页
Nondestructive Testing
基金
陕西省"13115"科技创新工程重大科技专项资助项目(2008ZDKG-21)
