Research On Rapid Detection Technology And 3D Reconstruction Of Municipal Roads

Along with the continuous development of science and technology of social progress,pavement distress detection technology has been developed from manual to automatic,damage detection to nondestructive testing,low speed to high speed single indicator to multi function detection.At present,the pavement of the two-dimensional measurement technology has been unable to meet the pavement management system,intelligent transportation system(ITS)and increasingly sophisticated pavement evaluation technology development needs,three-dimensional surface detection technology is becoming an important direction for the development of a new generation of pavement detection.Study on the new three-dimensional surface detection technology can not only meet the needs of China’s increasingly heavy pavement quality and acceptance of work and maintenance management,but also has the important significance for improving the level of pavement evaluation in our country and promote the development of its technology.The purpose of this study is the analysis of the technical principle of rapid detection of 3D reconstruction,so as to improve the quality of two-dimensional contrast detection technique for rapid detection of theoretical basis of road pavement reconstruction;three-dimensional Hillshading technology based on logarithmic mapping,realize color pavement display;use damaged location connectedcomponentlabeling pavement and the damage characteristics based on the calculation,the the accurate calculation of precise positioning and characteristics of pavement distress;experimental verification for system design is completed and verified the feasibility and accuracy of correlation algorithm with model data;the ultimate aim is the damage information acquisition system through the 3D visualization of pavement,verify the application of rapid detection technology of 3D reconstruction,to achieve full coverage of the damage data of 2D and 3D pavement.This paper analyzes the research background and the research on rapid detection technology of city road reconstruction purpose and significance in the first chapter,summarizes and analyzes the development situation of domestic and foreign three-dimensional road reconstruction technologies at home and abroad and the methods used,finally analyzes the three-dimensional road reconstruction system of the necessity and feasibility of the development;the second chapter mainly introduces the basic principle of the basic method of data acquisition and visualization modeling on the road;in the third chapter mainly introduces the application of 3D visualization of pavement distress information collection system;the fourth chapter mainly introduces the types,road 3D damage method of connectivity labeling for 3D pavement damage types for feature extraction and calculation methods of different types of 3D pavement damage area and volume;in the fifth chapter,the 3D reconstruction of rapid detection technology and feasibility of the study Verify the accuracy,has used the validation test verification and field verification;in Chapter 6 Analysis of pavement damage 3D detection data of importance and in urban road pavement damage evaluation of the application effect of.Finally completed the meet the application of 3D reconstruction technique for rapid detection of automation testing requirements,also comparing the detection results of two-dimensional,our current detection technology is proposed for further improvement of the proposal and the road maintenance suggestions.