Method for rapidly extracting same name point information of unmanned aerial vehicle images in coastal zone
An extraction method and technology for coastal zones, which are applied in the field of rapid extraction of point information with the same name from UAV images in coastal zones, can solve problems such as insufficient automation, and achieve the effects of good data processing capability, high computing efficiency, and strong versatility.
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[0042] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0043] A method for quickly extracting the same-name point information from UAV images in the coastal zone, such as figure 1 shown, including the following steps:
[0044] Step 1. Automatically determine the camera placement method based on the image data
[0045] For UAV surveying and mapping, camera placement should comply with the provisions of the "Low Altitude Digital Photogrammetry Specifications". The specification gives four camera placement methods, such as figure 2 and Figure 3a , Figure 3b , Figure 3c , Figure 3d shown.
[0046] In the same route, the "movement" in four different directions, downward, upward, right, and left, appeared in the first photo taken with the object of the same name compared to the later photo taken. Assuming that the image plane coordinates of any image point with the same name in the image pair ar...
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