Design And Research Of Digital Watermarking Algorithm For 3D Traffic Carrying Model

With the rapid development of Internet technology,the intelligent application of traffic carrying model data has been increasingly valued and promoted by government departments.Due to the high precision of drawing features and the simple and advanced way of visual storage,it brings huge benefits to related enterprises in the design,construction and operation and maintenance of vehicles in rail transit,highway traffic,maritime traffic and aerospace and aviation.Dividends,but issues such as information security and copyright certification have also emerged.Digital watermarking technology is an important means to protect the copyright protection model and data security of traffic simulation models.When the high-precision traffic carrying and drawing model is illegally copied and stolen,the key watermark identification information embedded in the signal redundancy is also provided by the copyright owner and law enforcement agencies.The most critical evidence of accountability certification.This paper starts from the source of intelligent traffic simulation data,and starts the research on the hidden embedded information security of traffic vehicles based on the three-dimensional digital storage data of the vehicle project.Combining the theory of carrier area construction,digital coding design and information expression conversion of digital watermarking,two new digital watermarking algorithms based on traffic carrying model data are proposed:(1)Digital watermarking algorithm based on redundant map of Harmony number motor train model.The algorithm uses the texture mapping rules of orthogonal projection of three-dimensional traffic carrying model,quaternion wavelet transform and MTL file texture configuration to verify the feasibility of traffic model patch map,and then uses RSA programming method to carry out the traditional model of dense carrier.File encryption processing.Simulation experiments show that compared with the 3D model watermarking method without surface texture properties,the proposed algorithm can increase the anti-attack capability of traffic carrying model data in a special rendering environment by10.46% and the information security coefficient by 7.29%.(2)Digital watermarkingalgorithm and performance analysis based on different data of motor vehicle model.Firstly,the algorithm performs two-dimensional discrete Daubechies transform with db1 function,and performs a robust spatial transformation on the interior of the transport model carrier.Then,the wavelet domain theory of framed sampling is used to complete the double-robust space transform,and the flag information requiring authentication and accountability is embedded into the processed robust space to complete the information embedding.The experimental analysis shows that the algorithm can effectively improve the invisibility,robustness and anti-analysis ability of the traffic carrier model data carrier,and provides a reliable technical means for the copyright authentication and anti-counterfeiting application of related design enterprises in the transportation industry.After studying the relevant theoretical and statistical characteristics of traffic simulation data model,this paper proposes two new digital watermarking algorithms.The core contribution lies in the use of two-dimensional traffic carrying model image carrier and three-dimensional motor vehicle simulation model data carrier to generate dense traffic carrying model data files,multi-channel protection of enterprise copyright authentication data in traffic simulation model data,multi-functional information Secure data prioritization,multiple backups of critical information,and more.