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。
The algorithm USES the channel correlation in the frequency domain to greatly reduce the computation complexity and the number of required samples.
利用信道频率相关特性降低了算法复杂度，同时解决了算法对样本数的依赖问题。
The correlation of adjacent slices bitrates in frequency domain can effectively reflect the activity of the motion pictures.
此判别法表明，相邻编码帧宏块条码率的频域互相关能够有效反映图像活动性变化的特点。
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