Suspicious vehicle discovery algorithm based on space-time range constraint

Abstract

The invention discloses a suspicious vehicle discovery algorithm based on a space-time range constraint, relates to application fields of intelligent traffic, space-time databases, artificial intelligence and the like, and particularly relates to a suspicious vehicle discovery method independent of visual features. The algorithm comprises the following steps of 1) submitting k space-time constraint conditions, wherein k is a natural number, k is greater than or equal to 1 and less than or equal to 10, and the k space-time constraint conditions are namely k relatively clear space and time ranges; and 2) sequentially searching for a vehicle which meets the k space-time constraint conditions in a trajectory database, and obtaining a final query result. By utilizing the space-time characteristics of the motion of the suspicious vehicle, the time range and the space range of the motion of the suspicious vehicle are expressed as the space-time constraint conditions; the query of the suspicious vehicle is carried out on the basis of the space-time constraint; and the multiple space-time constraint conditions and a distributed processing mode can be supported to improve the efficiency of discovering the suspicious vehicles.

Description

technical field [0001] The invention discloses a suspicious vehicle discovery algorithm based on space-time constraints, which relates to application fields such as intelligent transportation, space-time database and artificial intelligence, in particular a suspicious vehicle discovery method that does not rely on visual features. Background technique [0002] Suspicious vehicle identification is an important issue in intelligent transportation, which aims to help public security organs track illegal and illegal vehicles. Suspicious vehicles in real life usually include two types: one is vehicles with typical external characteristics, such as witnesses or a monitoring system somewhere that has recorded the typical external characteristics of suspicious vehicles, such as license plate number, brand model and color, etc.; is a vehicle whose exterior characteristics are unknown. The current suspicious vehicle detection algorithm mainly uses the suspicious vehicle with typical ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a suspicious vehicle discovery algorithm based on space-time range constraints in view of the above shortcomings, which can find suspicious vehicles without clear external features when the time and place are uncertain, and solve the problem of image recognition-based methods and methods. None of the methods based on relational databases can efficiently discover the query problem of suspicious vehicles with no typical external characteristics and unclear location information

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