该算法根据运动矢量的中心分布特性设计了相应的匹配搜索模板。
Matching search patterns are designed in the algorithm based on the center-biased characteristics of motion vector distribution.
该算法由于利用了序列图象运动矢量的空间分布特性—中心偏置分布特性,可以明显地将搜索次数降低到(25 -55)次。
Based on the image sequence's spatial characteristics of center-biased motion vectors, this method can significantly reduces the search times to (25-55).
该算法首先采用了线性预测块匹配搜索算法来估计内插帧中每一个象素的运动矢量;
Firstly a motion vector is searched for each pixel in the interpolated frame using the block-matching search method of linear prediction.
该算法通过预测运动矢量较快地搜索到匹配块,减少了搜索次数,提高了搜索效果。
This algorithm improves search performance and reduces search steps compared with Diamond Search by prediction motion vector.
使用图形流水线中的顶点数据来定义搜索区极大地减少了产生运动矢量和执行数据压缩所必需的搜索量。
The use of vertex data from the graphics pipeline to define the search area substantially reduces the amount of searching necessary to generate motion vectors and perform data compression.
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).
然后建立时域上关于搜索块与参考块之间运动矢量夹角的概率模型,对于帧间预测宏块通过聂曼一皮尔迅准则进行运动判决。
For Inter-MB, a temporally statistical modal with regard to vector angle was established and the moving object was detected by using the neyman-pearson criteria.
当基于预测运动矢量的匹配误差介于两sad阈值之间时,用小窗口搜索代替运动估计。
When the matching error based on the prediction of the motion vector is between two SAD thresholds, a search restricted in a small window is used to replace the original motion estimation.
达到比三步法还要少的搜索次数,运动补偿增益和运动矢量熵均比三步法有明显改善。
Motion compensated gain and entropy of motion vector can be improved evidently, but the number of search is less then that of three step method.
算法结合误差曲面特性以及运动矢量中心偏移特性,得到最佳参考运动矢量;利用运动矢量的方向和强度信息,确定搜索方向,切换搜索模式,搜索的同时应用全零块的中止准则。
It gets the best reference motion vectors from the error - surface and the center deviation characteristics, and it USES the direction and intensity information to choose the proper searching mode.
该算法根据给定的搜索距确定相应的搜索模式,使用中途停止技术快速的给出运动矢量。
Motion vector is obtained by halfway-stop technique and search pattern which is confirmed by the search distance.
达到比三步法还要少的搜索次数,运动补偿增益和运动矢量熵均比三步法有明显改善。
Motion compensated gain and entropy of motion vector can be improved evidently, but the number of search is less then that oft...
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.
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.
应用推荐