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发表于 2013-2-15 09:58:41
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别轻信这些小白编辑的翻译,多google一下,你就知道他们翻译的是多BC。
这套系统里根本没有利用到声音。想想一大群蚊子飞过来,在较远的位置,你能很好的用声音识别并区分它们??
http://v.youku.com/v_show/id_XMzkyOTY4NTc2.html
可以从第十分钟开始看。
http://intellectualventureslab.com/?page_id=563
这应该是它们官网,想了解原理最好在这里看。
When an invading insect is detected, our software identifies it by training a nonlethal laser beam on the bug and using that illumination to estimate the insect’s size and also to measure how fast its wings are beating. Using this method, the system can not only distinguish among mosquitoes, butterflies, and bumblebees, but it can even determine whether a mosquito is male or female! (Females are significantly larger than males and have slower wingbeats.) This is useful because only female mosquitoes bite humans.
基本上完全靠光学方法。我的理解:摄像机负责发现飞行的小东西,并锁定追踪。用一束低能激光照射被锁定的目标,因为被照亮了所以容易从图像中估计它的尺寸,同时这个昆虫翅膀振动也可以通过检测反射光的频率成分来测量(振动频率应该是单独的光敏器件测量,不是从图像中获得)。 |
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