UAV Placement for Real-time Video Acquisition: A Tradeoff between Resolution and Delay
Tang Xiao-Wei, Huang Xin-Lin Huang

TL;DR
This paper introduces an oblique UAV photography model and an optimized placement scheme to reduce transmission delay while maintaining image resolution in real-time video acquisition.
Contribution
It proposes a novel oblique photography model and an optimization framework for UAV placement to minimize delay, improving over traditional vertical photography methods.
Findings
The oblique model reduces transmission delay significantly.
The optimization scheme effectively balances resolution and delay.
Numerical results demonstrate substantial delay savings.
Abstract
Recently, UAVs endowed with high mobility, low cost, and remote control have promoted the development of UAV-assisted real-time video/image acquisition applications, which have a high demand for both transmission rate and image resolution. However, in conventional vertical photography model, the UAV should fly to the top of ground targets (GTs) to capture images, thus enlarge the transmission delay. In this paper, we propose an oblique photography model, which allows the UAV to capture images of GTs from a far distance while still satisfying the predetermined resolution requirement. Based on the proposed oblique photography model, we further study the UAV placement problem in the cellular-connected UAV-assisted image acquisition system, which aims at minimizing the data transmission delay under the condition of satisfying the predetermined image resolution requirement. Firstly, the…
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Taxonomy
TopicsUAV Applications and Optimization · Robotics and Sensor-Based Localization · Distributed Control Multi-Agent Systems
