|
|||||
|
|
| 基于频域多尺度小波变换的CR图像超分辨率增强 | |
| 引用本文： | 邢敏,刘智勇,李哲.基于频域多尺度小波变换的CR图像超分辨率增强[J].吉林大学学报(信息科学版),2009,27(3):289. |
| 作者姓名： | 邢敏 刘智勇 李哲 |
| 作者单位： | 1.长春金融高等专科学校 计算机系,长春 130022;2.吉林大学 计算机科学与技术学院, 长春 130012 |
| 摘 要： | 针对CR(Computed Radiography)成像过程中分辨率不足的问题，提出了一种基于小波变换的超分辨率增强方 法。该方法通过小波分析方法对低频尺度系数进行灰度值分割，对高频小波系数进行增益操作， 并给出了小波系数增强策略。对CR胸部透视图像进行算法验证的结果表明，该算法改 善了图像的视觉效果，从而验证了该算法的正确性和有效性。 |
| 关 键 词： | 小波变换 CR图像 超分辨率 |
Super-Resolution Enhancement of CR Based on Frequency Domain Multi-Scale Wavelet Transformation |
|
| XING Min,LIU Zhi-yong,LI Zhe.Super-Resolution Enhancement of CR Based on Frequency Domain Multi-Scale Wavelet Transformation[J].Journal of Jilin University:Information Sci Ed,2009,27(3):289. | |
| Authors: | XING Min LIU Zhi-yong LI Zhe |
| Institution: | 1.Department of Computer,Changchun Finance College,Changchun 130022,China;2.College of Computer Science and Technology, Jilin University, Changchun 130012, China |
| Abstract: | For the purpose of improving the resolution of CR(Computed Radiography) images,we present a new method based on wavelettransform.The grey level of image is segmented by low frequency coefficient,high frequency coefficient is strengthened anda new enhanced strategy of coefficient is given.The algorithm confirmation has executed to the CR perspective image of the chest,the image visual effect has been improved,and the algorithm accuracy and the validity has been confirmed. |
| Keywords: | wavelet transform computed radiography(CR) image super-resolution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《吉林大学学报(信息科学版)》浏览原始摘要信息 | |
| 点击此处可从《吉林大学学报(信息科学版)》下载免费的PDF全文 | |