Three-dimensional Bronze Model Display System Based On Image Feature Extraction And Semantic Annotation

Computer technology and Internet technology are changing with each passing day.The rapid development of these two technologies and their application in various fields have greatly accelerated the direction of the study of cultural relics digitization,and a considerable amount of results have been achieved at home and abroad.Because the surface of cultural relics may have many details,that is,the surface texture is complicated,it is difficult to accurately obtain and construct a curved surface model of cultural relics.The key in the process of digitizing cultural relics is how to quickly and accurately obtain three-dimensional models of cultural relics.On the one hand,the protection and repair of cultural relics are very effective and give full play to the various tangible and intangible values of cultural relics.On the other hand,in the process of visiting cultural relics,you can reduce the cultural relics while understanding the historical background and cultural connotation of cultural relics.The occurrence of inevitable destruction can also enhance people's love for cultural relics.In this thesis,the digital modeling of bronze relics is studied,then feature extraction and semantic annotation of bronze relics are carried out,and finally a webpage design is made to make a bronze museum exhibition webpage,and the three-dimensional model obtained after digitizing the bronzes is displayed.The research content is as follows:Firstly,study how to obtain accurate point cloud data of bronze,and also do some research on how to process these point cloud data in various aspects.At present,if you want to obtain the point cloud data of bronze,the paper discusses two main methods of obtaining point cloud data.In this paper,the principles of the laser triangulation method and structured method are analyzed in detail,and the scanners of the two corresponding methods are analyzed.The paper chose to use the Vivid910 3D scanner to scan the bronze artifact model to obtain point cloud data.The thesis researched several methods of processing point cloud data combined with the characteristics of bronze,to obtain more accurate bronze point cloud data.By comparing the bronze model before and after the point cloud data processing;understand how to operate on the point cloud data.Secondly,the key point in the process of digitizing cultural relics-modeling was studied.On the one hand,the thesis studies the basic theory of curve and surface modeling,on the other hand,it introduces the more curved surfaces,that is,Bezier curves,describes the properties of these curves and surfaces,and analyzes them using relevant mathematical theories and mathematical formulas Using these mathematical theories to calculate,you can get some data,and then use these data to draw the relevant curves and surfaces;finally,the three stages of making bronze artifacts 3D models and the operations required at each stage are introduced in detail.The paper selects Geomagic software to create a three-dimensional model of bronze,and uses 3dsmax software to render the bronze model material.Thirdly,the color features,texture features,and shape features of the bronze images are extracted,and then feature fusion is retrieved from the database of the data crawled on the Internet to obtain the identified bronze objects,and then each bronze object is semantically annotated in detail.Finally,Studied the various elements required in the web design process,using various software such as Photoshop to carry out the preliminary design of the web page of the digital bronze museum website,and then using Notepad ++ to realize the step-by-step realization of each designed web page,and finally produced a bronze cultural relics digital web page.