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Most standard video compression schemes such as H.264/AVC involve a high complexity encoder with block Motion Estimation (ME) engine. However, applications such as video reconnaissance and surveillance using Unmanned Aerial Vehicles (UAVs) require a low complexity video encoder. Additionally, in such applications, the motion in the video is primarily global and due to the known movement of the camera platform. Therefore in this paper, the authors propose and investigate a low complexity encoder with global motion based frame prediction and no block ME. They show that for videos with mostly global motion, this encoder performs better than a baseline H.264 encoder with ME block size restricted to 8 ? 8.
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