Cascade-type multi-camera relay tracing method and system

Abstract

The invention discloses a non-overlapping horizon cascade-type multi-camera relay tracing method and a system, and belongs to the technical field of visual surveillance. The method comprises the following steps of building a layered real-time network hardware surveillance system and building a monitoring sub network and global scene map mapping, carrying out abstract mathematical modeling on the map mapping to obtain a corresponding topological node connection diagram, initializing the tracing information and starting tracing, adopting a single-target tracing strategy based on scale invariant features and particle filtering in a single camera view field, adopting layered searching and a cascade tracing strategy and adopting federated data association algorithm in the topological sub network and adopting temporal and spatial association algorithm in searching in the global topological map, and judging termination and loss of target tracing and terminating the tracing. The method relies on the prior video surveillance network in the industry, a suspicious target can be traced in a scene crossing mode, the system adopts the distributed-type layered searching method, the tracing cost is reduced, and the suspicious target can be traced in real time.

Description

Technical field [0001] The invention belongs to the technical field of visual monitoring, and relates to a cascaded multi-camera relay tracking method and system. Background technique [0002] With the large-scale popularization and development of urban security surveillance networks, more and more business districts, communities, schools and other key areas of public activity areas have deployed video surveillance. These surveillance cameras operate in a distributed and independent manner to ensure the public safety of the city and provide auxiliary decision-making information and traceable management credentials. Therefore, automatic analysis of video image abnormal information and real-time tracking of suspicious targets to improve the intelligence of video surveillance networks are the current frontier technology in the field of image processing that has attracted much attention and has huge market demand. [0003] The surveillance network of a micro residential area includes ...

AI Technical Summary

Problems solved by technology

[0007] (2) Target occlusion problem: occlusion is a common and difficult problem in target tracking. The lack of target information during the occlusion process will make tracking unstable

[0008] (3) Multi-camera collaborative control problem: It is necessary to determine which camera to use at each moment, that is, data association and information fusion between multiple cameras

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