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Effects and corrections of video camera's high angle shot to the analytical results of motion image analysis

Lin Li, Zhongqiu Ji

The analysis towards sports competition is an important part of technical motion analysis. With the features of being able to measure at a distance and non-contact, motion video analysis system becomes the first choice of data collection and analysis in sports competition. However, due to some objective reasons, there is often a certain depression angle when shooting competitions. Through theoretical analysis and experimental verification, this paper analyzes the effects of video camera’s high angle shot to twodimensional and three-dimensional analytical results and proposes correction methods.