The result shows that the motion threshold voltage declines due to the PTFE spacer, and is affected obviously by the spacer shapes.
结果表明，PTFE绝缘子的存在降低了微粒运动起始电压，而且绝缘子的形状也会影响绝缘子附近微粒运动的起始电压。
This system detected motion target using difference image method through threshold image segmentation, then automatically tracked target by using centroid tracking algorithm.
该系统运用差分图像法，通过阈值图像分割来检测运动目标，并采用形心跟踪算法来自动跟踪目标。
It adopts adaptive threshold stopping algorithm so as to decrease the time of motion search and keep the motion search resolution unchanged.
采用自适应阈值搜索停止算法，减少了运动估计搜索次数，并且基本保持运动估计的精度不变。
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