The cost function the present invention adopts has not only the traditional 'absolute difference sum' considered, but also the quantizing step length and the pixel difference value variation state of the current coded block relative to the blocks in one search arean of the destination picture considered, so that the cost function the present invention can find out the optimal motion vector corresponding to residual value capable of being treated to obtain relative high compression efficiency.
基于1个网页-相关网页
Sum of Absolute Difference 差和 ; 绝对误差和 ; 相对误差和 ; 对误差和
To compare two images, you take the absolute value of the difference between each histogram bucket, and then sum these values.
为了比较两个图像，则采取每个直方图桶之间的差的绝对值，并再总结这些值。
The global tilt message caused by the atmosphere turbulence can be extracted using the cross-correlation coefficient algorithm and the sum of absolute difference algorithm.
利用互相关因子算法和 绝对 差分算法可以提取大气湍流的整体倾斜信息。
The relationships in various directions between the function, the sum of absolute value of gray difference of image, and the motion blur direction are studied for the first time in this paper.
本文首次研究了在不同方向的图像灰度差的绝对值之和与图像运动模糊方向的关系。在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
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