In the common methods, the algorithm based on the average of region gray makes image blur, and the algorithm based on spline interpolation wastes time.
在常用的方法中，基于区域灰度平均的算法使图像模糊，而基于样条插值的算法计算耗时。
Three photographs, in which the shape of the image is the same, but the fringe distribution is different, can be obtained by time average holographic technology with three-images.
在同一振动状态下，可以用重象法摄制振动物体的时间平均全息照片，从而获得三张形状完全相同而条纹分布不同的全息照片。
The average retrieval time for a middle or large image is about eight seconds which is acceptable.
对于中等大小的拍摄图片，整个系统的平均检索时间大约在八秒以内。
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