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Trajectory data analysis equipment, trajectory data analysis method and program
Trajectory data analysis equipment, trajectory data analysis method and program
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机译:轨迹数据分析设备,轨迹数据分析方法和程序
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摘要
PROBLEM TO BE SOLVED: To compare or sort trajectory data between different measurement environments.;SOLUTION: A trajectory data analysis device includes: a knot creating unit 403 which converts two-dimensional trajectory data acquired in a measurement environment to a three-dimensional curve by sterically crossing at an intersection, to output a knot based on the curve; a knot invariant calculation unit 404 which calculates invariant of the knot; and a feature analysis unit 405 which decomposes the invariant calculated by the knot invariant calculation unit 404 into multiple kinds of prime knot groups determined in advance in a database 406, for multiple pieces of trajectory data acquired in the measurement environment, determines an occurrence frequency distribution of the prime knot, and creates a feature vector of the trajectory data in the measurement environment on the basis of the occurrence frequency distribution.;COPYRIGHT: (C)2014,JPO&INPIT
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