[1]欧书琴 李新华 孔颉 陈军.基于非下采样Contourlet变换的彩色图像拼接算法[J].计算机技术与发展,2010,(11):37-41.
　OU Shu-qin,LI Xin-hua,KONG Jie,et al.Color Image Mosaicing Algorithm Based on Nonsubsampled Contourlet Transform[J].,2010,(11):37-41.
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基于非下采样Contourlet变换的彩色图像拼接算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2010年11期
页码:
37-41
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
Color Image Mosaicing Algorithm Based on Nonsubsampled Contourlet Transform
文章编号:
1673-629X（2010）11-0037-05
作者:
欧书琴 李新华 孔颉 陈军
安徽大学计算智能与信号处理教育部重点实验室
Author(s):
OU Shu-qin; LI Xin-hua; KONG Jie; CHEN Jun
Education Ministry Key Laboratory of IC ＆ SP,Anhui University
关键词:
图像拼接; 非下采样contourlet变换; 二维直方图; B样条曲面拟合; 非下采样小波变换
Keywords:
image mosaicing;  nonsubsampled contourlet transform;  two-dimensional histogram;  B spline surface fitting;  nonsubsampled wavelet transform
分类号:
TN911.73
文献标志码:
A
摘要:
文中分析研究了非下采样contourlet图像表示方法及在图像变换中的优点,提出了一种基于非下采样contourlet变换的图像拼接方法。利用SIFT算法和最近邻算法求得待拼接图像的匹配点和匹配区域,将待拼接图像分解成不同尺度、多方向的频带,对得到的频带对应地进行拼接,最后利用重构算法将拼接的各频带进行逆非下采样contourlet变换得到拼接图像。针对光照和数码相机的白平衡导致的拼接图像明暗差异,提出了一种基于二维直方图的B样条曲面拟合的的颜色校正方法。实验表明,文中方法优于传统的非下采样小波域中的拼接
Abstract:
Analyses the characteristics of Nonsubsampled Contourlet Transform（NSCT）and advantages in image transformation.Proposes an image mosaicing method based on NSCT.Firstly,SIFT algorithm and nearest-neighbor algorithm are used to obtain the matching points and matching area of source images,then each source image is decomposed in highpass subbands and lowpass subbands by NSCT.Corresponding to the received frequency band to carry out splicing,finally the mosaicing image is reconstructed by using reconstruction algorithm to take inverse transform of NSCT.The illumination and the automatic white balance settings of digital camera can cause the differences of light and shade in mosaicing image,in view of the problem,proposes a new color correction method which uses B spline surface fitting based on two-dimensional histogram.The experimental results show that the performance of the novel algorithm is better than the traditional mosaicing algorithm based on wavelet transformation,the transition is smoother,the mosaicing image is more natural,the details are more clear

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备注/Memo

备注/Memo:
安徽省教育科研计划项目（KJ2007B069）欧书琴（1985-），女，安徽宣城人，硕士，研究领域为数字图像处理；李新华，副教授，硕士生导师，研究领域为数字图像处理
更新日期/Last Update: 1900-01-01