Dronestagram refers to a photo or video shot from a drone.
2
无人机航拍图像具有很高分辨率，如何提取主要特征并降低计算代价是无人机图像匹配辅助导航的主要问题。
The UAV aerial images have fine resolution. The main problem of the UAV image aided navigation is how to pick-up the main character and reduces the calculation cost.
3
林赛说：“我非常担心在第一次旅程后，航拍无人机就会不见了。”
"I was very concerned they'd come back from the first trip without the drone, " says William.
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