用于唤醒跟踪区域节点，以重新寻找到目标。

In order to find the target again, the nodes would be waked up.

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其目标检测通过确定跟踪区域、分割目标等步骤先减少噪声影响，使图像对比度增强，把目标从背景中突显出来。

The target detection reduces the noise, enhances the image's contrast, and extrudes the target from background through making sure of tracking region and dividing target.

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下一篇文章我们将讨论系统内核是如何跟踪这些内存区域的。

The next post discusses how the kernel keeps track of these memory areas.

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