Study On Person Identify Authentication In Video Investigation

The purpose of the development of investigation activities is person identify authentication,it can be used to solve the problem of the criminal information tracking.Along with the social progress and the development of science and technology,the criminal practices are continuing to update,the crime situation is becoming increasingly serious,the fade zone of crime prevention and control is expanding.Under pressure to solve the case,the investigation activities need to be developed,the video image investigation method led by video surveillance technology emerged as the times required.As a typical representative of the theory of identical authentication in the field of new technology,the person identify authentication of video investigation has been the focus of the applied frontier research of the investigation discipline.It is mainly based on the human body related information reflected in the video image to solve the person identify authentication problem.Using video image resource,it can compare personal information through the Internet big database in order to achieve the characteristics retrieval and trajectory analysis.This paper attempts to start with the theory of identical authentication and the characteristics of the person identify authentication of video investigation,in order to interpreting the theoretical basis of the development of the person identify authentication of video investigation,and exploring the influence of the position of the theory of identical authentication one the method of the person identify authentication of video investigation.This paper will interpret the basic conditions for person identify authentication,and establish the material basis and structure foundation.Under the framework of the current criminal investigation system,this paper will start with the several methods of the person identify authentication of video investigation to find the application problems and solutions.This paper enhances the study on the construction of quality control standard system applied of the appraisal opinion in the court trial,in order to achieve a general study of person identify authentication of video investigation.This paper can be divided into five parts:The first part is the basic theory research on the person identify authentication of video investigation.It introduces separately the basic theory research on the person identify authentication of video investigation and the characteristics of the person identify authentication of video investigation.Among the first part,the introduction on the theory of person identify authentication includes the basic concept and theoretical position.Through the research of "the theory of identical authentication on judicial proof","the theory of identical authentication on criminal investigation “and " the theory of identical authentication on evidence identification”,this paper will explain the position of the theory of identical authentication,in order to provide theoretical support for the research on the method of the person identify authentication of video investigation.The second part is the research of the basic condition of the person identify authentication of video investigation.It explains the material basis and structure foundation.Among this part,the material basis introduces the explicit and implicit information included in the surveillance video.The structure foundation introduces the Shannon's extended information communication model in order to explain the structure foundation basis from the point of information theory.At the same time,this paper will explain the basic source of the person identify authentication of video investigation through the analysis on the principle foundation of the person identify authentication.The third part is the research of the basic methods of the person identify authentication of video investigation.Basing on the investigation practice status,this paper proposes that the methods of the person identify authentication of video investigation includes Identification of human body image,face recognition,iris recognition and the human behavioral trajectory analysis.Through the research of the methods,this paper will provide a detailed introduction with a specific case.The forth part is the analysis of the application problems and solutions of the person identify authentication of video investigation.Through the research of the four methods,this paper will combine with the status to propose the technology application problems,Investigation concept problem and the system designing problem.Besides,this paper will propose some feasible methods from the macroscopic angle in order to propose reference for the improvement research of the person identify authentication of video investigation.The fifth part is the research on the construction of quality controlling standard system of the person identify authentication of video investigation.Judicial expertise is an important technology in the video analysis,the quality of the appraisal opinion has a very important effect on the success or failure of the investigation.This paper will propose some feasible methods for the construction of quality control standard system,through the research of controlling model of judicial expertise's quality.