针对强对流降水的情况,提出了使用光流法计算得到的光流场来代替交叉相关法得到的运动矢量场。
An optical flow method instead of the cross correlation method is proposed for convective precipitation system.
根据运动矢量场自适应选择搜索起始点和不同的搜索策略进行搜索,同时设定阈值对静止块直接中止搜索。
Then the initial search point and 2 search strategies were adaptively chosen according to the motion vector field, and an threshold was also selected to detect stationary blocks.
在基于搜索起点预测和梯度式菱形搜索方法的基础上,提出了一种运动矢量场自适应搜索算法(MVFSAS)。
Based on prediction of searching starting-point and gradient diamond-shaped searching technique, the paper proposes a motion vector field self-adaptive searching algorithm (MVFSAS).
本文在分析低码率压缩码流运动矢量场以及误差曲面性质的基础上,提出一种基于时空预测的快速运动估值方法。
In this paper, based on the analysis of the characteristics of error surface and motion vector field, we propose a fast search strategy for motion estimation is proposed.
针对实际应用的不同侧重点,本文核心内容包括三方面:LV的运动矢量场估计、LV参数化运动跟踪模型和LV的概率跟踪模型。
To the different problems in practice, three main aspects are involved in this paper: the estimation of motion vector field, the parametric tracking model of lv and probability tracking model of lv.
把运动矢量场建模为高斯马尔科夫随机场,对丢失图像块的运动矢量采用最大后验概率方法恢复,其权值能够根据空间和时间信息而自适应选择。
The motion vectors of the damaged image macroblocks can be recovered adaptively by Maximum A Posteriori(MAP), and the weight is selected adaptively based o.
利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。
By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.
然后对得到的运动场进行中值滤波和判别,剔除运动不一致或错误的运动矢量;
Then the resulting motion field is median filtered and differentiated to remove inconsistent or wrong vectors.
本文由连续介质中的可变场的矢量线的保持性条件,主要讨论了运动系统中电磁场的保持性问题。
Based on the conservative condition of vector lines of variable field in the continuous medium, the problems of electromagnetic field in the moving system are discussed in this paper.
本文针对现有的依据光流场的分布来求相机运动参数的算法中不足,给出了一种依靠运动矢量的分布来求相机运动参数的方法。
Aiming at the shortcoming of current optical flow based camera motion parameter extracting methods, a new method is presented in this paper.
本文针对现有的依据光流场的分布来求相机运动参数的算法中不足,给出了一种依靠运动矢量的分布来求相机运动参数的方法。
Aiming at the shortcoming of current optical flow based camera motion parameter extracting methods, a new method is presented in this paper.
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