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阙禄松,王明泉,张俊生,等. 基于多尺度局部边缘保持滤波的X射线图像色调映射算法[J]. 科学技术与工程, 2019, 19(28): 217-221.
QUE Lu-song,ZHANG Jun-sheng,et al.A Tone-mapping Algorithm of X-ray Images Based on Multiscale and Local Edge Preserving Filter[J].Science Technology and Engineering,2019,19(28):217-221.
基于多尺度局部边缘保持滤波的X射线图像色调映射算法
A Tone-mapping Algorithm of X-ray Images Based on Multiscale and Local Edge Preserving Filter
投稿时间:2019-02-22  修订日期:2019-03-25
DOI:
中文关键词:  X射线 高动态范围 色调映射 滤波 多尺度
英文关键词:x-ray  high dynamic range  tone mapping  filter  multiscale
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
           
作者单位
阙禄松 中北大学国防重点实验室
王明泉 中北大学国防重点实验室
张俊生 中北大学国防重点实验室
李汉 中北大学国防重点实验室
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中文摘要:
      为了使工业和医学检测系统获取的高动态范围X射线图像能显示于普通显示器,本文提出了一种基于多尺度局部边缘保持滤波的色调映射算法。该算法将原始图像迭代滤波后,得到三个基础层图像;对相邻基础层图像作差得到三个细节层图像;对各细节层图像的细节信息增强后与最后一个基础层图像叠加;最后通过直方图均衡化来去除噪声等灰度值占比极小的像素点,从而优化图像质量。实验结果表明,本文算法在结构保真度,自然度,图像质量评分的表现上都得到了改进,可提高X射线检测系统的检测效率。
英文摘要:
      In order to display X-ray images with high dynamic range obtained by industrial and medical detection systems on commonSmonitors, a tone mapping algorithm based on multiscale and local edge preserving filter was proposed in this paper. First of all, after the original image was filtered iteratively, three base layer images were obtained and three detail layer images were the differences between adjacent base layer images. Secondly, the details information of each detail layer image is enhanced. Thirdly three detail layer images was superimposed with the last foundation layer image. Finally, histogram equalization was used to improve the image quality by changing the gray value of noise pixels and other pixels whose luminance appeared rarely. Experimental results shows, the performance of the proposed algorithm is improved in terms of structural fidelity, naturalness and image quality score. And the efficiency of X-ray detection system can be enhanced.
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