针对视频图像运动检测问题，提出一种空域灰度投影和频域相位相关相结合的亚像素配准方法。
To resolve the problems existed in the estimation of motion in video sequences, a novel method combining gray projection in spatial domain and phase correlation in frequency domain is proposed.
针对心脏磁共振时间序列图像，提出了一种结合力矩主轴法与互信息法的序列图像亚像素配准新方法。
For heart MRI time-series images, an improved sub pixel match approach based on cross-weighted moments and mutual information is presented, which adopts mixed registration strategies.
实验证明了文本方法的有效性和可行性，配准结果达到亚像素精度。
Experiment results show subvoxel accuracy can be achieved and the feasibility and efficiency of algorithms are verified.
互信息的使用使得待配准图像不需要进行预处理，并且配准的精度可以达到亚像素级。
The image need not pretreatment and the accuracy of registration can reach as high a level as sub-pixel if you registrate image by mutual information method.
经典的最大互信息方法利用图像像素或体素灰度的统计特性很好地实现了配准的目的，使配准结果达到亚像素级；
The standard MMI method makes use of the statistical property of image voxels and pixels and arrives perfect results of registration, up to sub-voxel level.
针对图像配准中的亚像素参数估计问题，提出了一种相位相关和模板匹配相结合的方法。
In order to deal with the problem of the estimation of image registration parameter, this thesis ADAPTS the way of combining the methods of phase correlation and template matching.
实验结果表明，此优化方法不仅提高了计算速度，而且提高了配准精度，配准结果达到了亚像素级水平。
Experimental results indicate that the optimum method has a faster image registration speed and a better image registration precision. The registration results reach the level of sub-pixel.
实验结果表明，此优化方法不仅提高了计算速度，而且提高了配准精度，配准结果达到了亚像素级水平。
Experimental results indicate that the optimum method has a faster image registration speed and a better image registration precision. The registration results reach the level of sub-pixel.
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