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- W1588801743 abstract "Unmanned Aerial Vehicles (UAVs) are being increasingly used in several countries, both in the military and civilian areas. In this study we consider an UAV equipped with a camera, capturing video for a real-time transmission to a ground-base using wireless network. The problem is that it’s not possible to ensure a continuous transmission rate, with stable bandwidth. That occurs due to factors like the speed of the aircraft, irregularities of terrain, or the weather (as storms, heat and fog, for instance, can interfere with RF transmission). Finally, the movements that the UAV can perform in flight (Roll, pitch and yaw) can impair link availability. Thus, it is necessary to perform an adaptation of video according to the available bandwidth. When the link quality is degraded, a reduction in the resolution of the video must be performed , avoiding interruption of the transmission. Additionally, adaptation must also provide that all the available bandwidth is used, avoiding sending the video with lower quality that would be possible for a given value bandwidth. In this work we propose a system which can vary the total amount of data being transmitted, by adjusting the compression parameters of the video. We manage to produce a system which uses the range from 8 Mbps up to zero. We use the H.264/AVC Codec, with scalable video coding." @default.
- W1588801743 created "2016-06-24" @default.
- W1588801743 creator A5056504224 @default.
- W1588801743 date "2015-11-17" @default.
- W1588801743 modified "2023-09-24" @default.
- W1588801743 title "Adaptação de stream de vídeo em veículos aéreos não tripulados" @default.
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- W1588801743 doi "https://doi.org/10.11606/d.55.2012.tde-23042013-083649" @default.
- W1588801743 hasPublicationYear "2015" @default.
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