An increasing amount of scientific insight is sought by the means of recording and analysing video. Analysing the recorded video footage requires sophisticated software tools that do not yet exist. We propose a video analysis tool, called VideoTagger that allows to explore, annotate and visualize contents of video. Using VideoTagger we analysed a 3 month lifespan video of D. Melanogaster to describe the struggling behaviour. Based on our observations of the struggling behaviour, we propose it as a health measure proxy in flies.
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