ERA DATASET

A Dataset and Deep Learning Benchmark for Event Recognition in Aerial Videos

Introduction

Along with the now widespread availability of unmanned aerial vehicles (UAVs), large volumes of aerial videos have been produced. It is unrealistic for humans to screen such big data and understand their contents. Hence methodological research on the automatic understanding of UAV videos is of paramount importance. In this work, we introduce a novel task of event recognition in unconstrained aerial videos in the remote sensing community and present a large-scale, human-annotated dataset, named ERA (Event Recognition in Aerial videos), consisting of 2,866 videos each with a label from 25 different classes corresponding to an event unfolding 5 seconds. The ERA dataset is designed to have a significant intra-class variation and inter-class similarity and captures dynamic events in different environments and at different scales. Moreover, in order to provide a benchmark for this task, we extensively evaluate existing deep networks. We expect that the ERA dataset will facilitate further progress in automatic aerial video comprehension.

Statistics

The goal of this work is to collect a large, diverse datasetfor training models for event understanding in UAV videos. Since we gather aerial videos from Youtube, the largest videosharing platform in the world, we are capable of includinga large breadth of diversity that would be more challengingthan making use of self-collected dat. In total, wehave gathered and annotated 2,866 videos for 25 classes. Eachvideo sequence is at 24 fps (frames per second), in 5 seconds,and with a spatial size of 640×640 pixels.

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