Motion prediction taking acceleration into account could effectively reduce the detection area and it consequently increases the tracking speed.
带加速度的运动预测则有效地减小了检测区域，提高了系统的速度。
In order to accelerate detection speed, video images are divided into blocks. Each block motion orientation is estimated by block matching methods.
为了加快检测速度，将视频图像分割成大小相等的块，并估计每个块的运动方向。
A novel compressed-domain video watermarking algorithm based on motion speed was presented, the performance analysis of relative detection was given.
在运动矢量的基础上提出运动速度概念，并提出一种基于运动速度的压缩域视频流水印算法，给出相关检测性能分析。
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