电子学报2017，Vol.45Issue(3)：669-673,5.DOI:10.3969/j.issn.0372-2112.2017.03.025
基于递变能量线性约束的X射线图像质量评价方法
X-Ray Image Quality Evaluation Based on Linear Constraint with Variable Energy
摘要
Abstract
X-ray image quality evaluation is the key problem of ray detection accuracy.The efficiency and real-time of the traditional subjective assessment method is poor.Also for some objective assessment indexes,such as contrast,definition,and so on,they have a certain limitation because of scatter and noise in the X-ray imaging.So this paper provides the method of X-ray image quality evaluation based on linear constraint with variable energy.First,based on the gray trend between the ray image sequences with variable energy imaging,the concept of the gray gain histogram between sequences is provided.Then based on the linear optimal imaging about imaging detector,evaluate image quality by the linear dispersion.Further,for the failure of dispersion evaluation because of over-exposure,synthesizing the linear dispersion and average contrast,the paper builds a standard of ray image quality evaluation.At last,the experiment proves the feasibility about this new standard.And it can avoid the limitation of the traditional single evaluation index.关键词
X射线成像/图像质量评价/递变能量成像/线性散布度/平均对比度Key words
X-ray imaging/image quality evaluation/varying energy imaging/linear dispersion/average contrast分类
信息技术与安全科学引用本文复制引用
李毅红,韩焱,潘晋孝,陈平..基于递变能量线性约束的X射线图像质量评价方法[J].电子学报,2017,45(3):669-673,5.基金项目
国家自然科学基金(No.61571404,No.61471325) （No.61571404,No.61471325）
山西省自然科学基金(No.2015021099) （No.2015021099）
山西省优秀青年学术带头人专项资助 （）
