对快鸟影像进行正射校正，运用高斯滤波进行图像增强，减少噪音，增强退耕地的树冠信息。

Gaussian filter was applied to the image to improve the tree crown information and control image noise.

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沙锥鸟是一种少见的飞的既远又快的鸟。

It's a rare bird that can fly both far and fast.

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早起的鸟有食吃。这意味着谁起的早，行动的快，谁就会成功。

The early bird catches the worm. This means a person who gets up early, or acts quickly, has the best chance of success.

youdao

早起的鸟有食吃。这意味着谁起的早，行动的快，谁就会成功。

The early bird catches the worm. This means a person who gets up early, or acts quickly, has the best chance of success.

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