摘要
利用超分辨率重建技术可提高图像的空间分辨率,但是低分辨率图像序列的配准精度直接影响超分辨率重建的效果。如果能在现有硬件设备的基础上,通过合理安排CCD线阵对图像进行错位,就能对图像间的子像素位移进行精确控制,消除运动参数估计对图像超分辨率重建的制约,从而提高图像的空间分辨率。对超模式影像所代表的交错采样图像的超分辨率重建进行了研究,基于全相位滤波理论,构造了具有交错采样结构的全相位内插滤波器,并将其用于交错采样图像超分辨率内插融合。为交错采样图像超分辨率重建提供了快速、实用且性能优异的高分辨率图像初始估计,大大提高了图像超分辨率重建质量。
Image resolution can be improved by the use of super-resolution reconstruction technology,but the registration precision is the key factor to the super-resolution reconstruction result.Based on the existing hardware equipment,if the CCD array can be arranged reasonably so that the images can be interlaced,which can lead to the accurate control of the sub-pixel shift and elimination of the limits of motion parameter estimation and the spatial resolution of image can therefore be improved.This paper makes a close analysis of the super-resolution reconstruction of the interlacing sampled images represented by super mode data.The all-phase interpolation filters with interlacing sampled structure are designed based on the theory of all phase filtering and used in the super-resolution fusion of images with interlaced samples,which provide fast,practical and high performance estimation and significantly improve the super-resolution reconstruction results.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第8期16-19,共4页
Computer Engineering and Applications
基金
高等院校博士学科点专项科研基金No.20060056051
天津市自然科学基金No.07JCYBJC13800
No.07JCZDJC05800~~
关键词
图像配准
交错采样
全相位内插
超分辨率融合
image registration
interlaced sampling
all-phase interpolation
super-resolution fusion
