Target person trajectory collision analysis method based on case event space-time coordinates

Abstract

The invention relates to a target person trajectory collision analysis method based on case event space-time coordinates, and belongs to the technical field of abnormal behavior subject analysis, and the method comprises the following steps: preprocessing case data and trajectory data, and ensuring that time information and space information have the premise of collision and further space-time correlation analysis; performing time collision on the preprocessed case data and the track data, and reserving track information within the crime occurrence time range; on the basis of time collision, subjecting case data and the trajectory data to space collision, and reserving trajectory information falling in a specified space range; and according to the trajectory main body information in the space-time range, further mining the abnormal main body by using four space-time correlation analysis methods. According to the invention, a traditional space-time collision analysis method and four space-time correlation analysis methods are combined, the abnormal behavior subject investigation range is greatly reduced, and the workload of investigation and case solving is reduced.

Description

technical field [0001] The invention belongs to the technical field of abnormal behavior subject analysis, and in particular relates to a target person trajectory collision analysis method based on time-space coordinates of a case event (burglary case). Background technique [0002] In the analysis of burglary cases and abnormal trajectories, especially after establishing the relationship between the crime and the space-time coordinate system, the corresponding analysis has great reference value for the detection of similar cases and related decision-making. However, the current spatio-temporal analysis for burglary cases still has a lot of room for improvement, and spatio-temporal analysis methods have been used in other fields and have played a positive role. [0003] The existing time-space correlation analysis method for burglary cases, its technical principle and application method are mainly to extract data items, that is, to set data conditions, to collide between rel...

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a target person trajectory collision analysis method based on the space-time coordinates of the case event. The method combines the time-space correlation analysis, and can be used in the traditional conventional time-space collision where the noise of the abnormal subject is too much. Under certain circumstances, the scope of investigation is further narrowed, most of the interference is eliminated, and the workload of investigation and case-solving is reduced.

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