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Monitoring Dynamic Braided River Habitats: Applicability and Efficacy of Aerial Photogrammetry from Manned Aircraft versus Unmanned Aerial Systems

机译：监测动态编织河栖息地：空中摄影测量的适用性和功效来自载人飞机与无人空中系统

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Despite growing interest in using lightweight unmanned aerial systems (UASs) for ecological research and conservation, review of the operational aspects of these evolving technologies is limited in the scientific literature. To derive an objective framework for choosing among technologies we calculated efficiency measures and conducted a data envelopment productivity frontier analysis (DEA) to compare the efficacy of using manned aircraft (Cessna with Aviatrix triggered image capture using a 50 mm lens) and UAS (Mavic Pro 2) for photogrammetric monitoring of restoration efforts in dynamic braided rivers in Southern New Zealand. Efficacy assessment was based on the technological, logistical, administrative, and economic requirements of pre (planning), peri (image acquiring) and post (image processing) phases. The results reveal that the technological and logistic aspects of UASs were more efficient than manned aircraft flights. Administratively, the first deployment of UASs is less efficient but was very flexible for subsequent deployment. Manned aircraft flights were more productive in terms of the number of acquired images, but the ground resolution of those images was lower compared with those from UASs. Frontier analysis confirmed that UASs would be economical for regular monitoring of habitats—and even more so if research personnel are trained to fly the UASs.
机译：尽管对使用轻量级无人的空中系统（UASS）来说，尽管对生态研究和保护进行了兴趣，但审查了这些不断发展的技术的运营方面在科学文献中受到限制。派生用于在技术中选择的客观框架，我们计算的效率措施并进行了数据包络生产力前沿分析（DEA），以比较使用载有载有载载飞机的功效（使用50 mm镜头使用AviaTrix触发图像捕获）和UAS（Mavic Pro 2）在新西兰南部动态编织河流的摄影测量力监测。功效评估是基于前（规划），PERI（图像获取）和柱（图像处理）阶段的技术，后勤，行政和经济要求。结果表明，乌斯特的技术和物流方面比载人飞机飞行更有效。在管理方面，uass的第一个部署效率较低，但对于后续部署非常灵活。载人航空器航班在获取的图像数量方面更加富有成效，但与维亚斯的图像相比，这些图像的地面分辨率较低。边防分析证实，乌斯斯将经济，用于定期监测栖息地 - 甚至更有，所以如果研究人员培训以飞行uass。

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