Based on the principle of two-media photogrammetry and with islands UAV images, a test of two-media photogrammetry is carried out. Firstly, there is an introduction of the principle of two-media photogrammetry. In the following step, the two-media photogrammetry requirements on the accuracy of the refractive index of sea water is discussed. Then, a new method for calculating the elevation correction coefficient is developed. The test procedure of two-media underwater reefs depth measurement based on low-altitude UAV images of underwater reefs surrounding the islands is designed. The test shows that aerial two-media photogrammetry is feasible in practical application, but relatively high requirements for aerial photography conditions.
ZHOU Gaowei, LI Yingcheng, REN Yanxü, SHENG Lin, YE Dongmei, FAN Fengyun, BAI Jie
. Research of Two-media Underwater Reefs Depth Measurement Experiment Based on Low-altitude UAV[J]. Acta Geodaetica et Cartographica Sinica, 2015
, 44(5)
: 548
-554
.
DOI: 10.11947/j.AGCS.2015.20140259
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