【作者】 魏交统； 陈平； 潘晋孝；

【Author】 WEI Jiaotong~1,CHEN Ping~(1,2),PAN Jinxiao~1 (1.Institute of Signal Capturing & Processing Technology,North University of China,Taiyuan 030051,China; 2.Key Laboratory of Molecular Imaging,Institute of Automation,Chinese Academy of Sciences, Beijing 100190,China)

【机构】 中北大学 信息探测与处理技术研究所； 中国科学院自动化研究所,中国科学院分子影像重点实验；

【摘要】 在变能量数字化X射线照相(Digital Radiography,DR)技术的图像融合中,图像序列存在信息冗余,为减少融合中所需源图像的数目,本文提出了一种图像选择方法。对于变能量DR图像序列,对其提取有效区域后,首先依据有效区域分割图像区域,然后评价各区域对应的局部图像质量,最后选取所有存在最优局部图像的有效区域进行融合。实验结果表明,这种方法可以大量减少参与融合的源图像的数目,同时,融合图像的质量降低很小。这说明了本文提出的图像选择方法的有效性。更多还原

【Abstract】 In multi-energy DR(digital radiography) images fusion,only some of the images are needed. A method to select the images which are fused is proposed in this paper.Firstly,the entire image region is divided according to the region with useful information of every DR image.Secondly,quality of local images corresponding with every local region is evaluated.Then the region with useful information is selected to fuse if it has a best local image.The experiment result demonstrates that the number of images we needed in fusion decreases much by this method,and the fusion image quality is a little degradation. It shows the effectiveness of this method.更多还原