Research On Security Intrusion Detection Algorithm Based On Structured Light

Security monitoring is an important means to protect the safety of citizens' personal and property.Intrusion monitoring and recognition based on intelligent video analysis has become an important development direction in the field of security,but most of the existing smart video security monitoring systems are based on two-dimensional images for research and dealing with,there are problems such as high false alarm rate and high missing alarm rate.In this paper,through innovative ideas,combined with in-depth acquisition methods and computer vision technology,a security intrusion detection algorithm based on structured light is studied.By applying structured light technology to the field of security monitoring,the collected images contain three-dimensional information and extract images depth information,combined with target detection technology for intrusion target detection and judgment,not only achieves intelligent security monitoring,but also reduces the phenomenon of false alarm and missing alarm on this basis,which greatly solves these problems and reduces security risks.Based on extensive research on computer vision technology and in-depth acquisition methods,this paper designs the overall scheme of security intrusion monitoring based on the requirements of security intrusion monitoring functions.The whole scheme is divided into two parts accordingly.In the research part of the moving target detection algorithm,this paper compares the effects and advantages and disadvantages of the current common moving target detection algorithms including optical flow method,inter-frame difference method,background difference method,and then this paper proposes a moving target detection algorithm based on the improved background difference method.In the deep data acquisition algorithm research section,based on the full study of structured light encoding and decoding methods,this paper uses the surface structured light method,selects the stripe pattern and combines the De Bruijn sequence to design the structured light coding projection pattern,and at the same time,in order to obtain relatively dense depth data,this paper introduces the phase difference matching method to design the decoding method according to the characteristics of the projection pattern.In addition,this article also selects equipment and builds a depth acquisition experimental platform to collect original images.Experiments show that the security intrusion detection algorithm based on structured light studied in this paper can effectively detect intrusion targets.Compared with the existing intelligent video security monitoring technology,the algorithm in this paper adopts the method of combining structured light technology and moving target detection algorithm,by acquiring three-dimensional information of the image,the depth information that is not in the traditional security image is obtained,which makes the security intrusion The accuracy of the monitoring results has been improved,and good results have been achieved in experimental tests.