Research And Application Of 3D Reconstruction Method For Single View Mortise And Tenon Line Graph

The mortise-and-tenon structure is the main structure of ancient Chinese architectures,furnitures and other wooden instruments.In the history of Chinese architecture,mortise-and-tenon is the earliest language with scientific design significance.It has a good structural stability through the interaction of yin and Yang and the joint way of concave and convex.It fully demonstrates our early outstanding scientific achievements,and contains the ancient spirit value and rich imagination.In the present Chinese,science,technology and economy have been developing rapidly.In science and technology area,more and more people begin to pay attention to the mobile Internet.With the improvement of the economy China also entered their "Renaissance",more and more traditional skills back to people's sight,including the study of mortise-and-tenon structure.How to use high and new technology to research and apply the mortise-and-tenon structure has become a good research direction.This paper will focus on the mobile application,and study the three-dimensional reconstruction of mortise-and-tenon structure and the realization of mobile terminal augmented reality.There are two problems need to be solved.One is the lack of dimensional information and hidden information from a two-dimensional transformation,the need to improve the line graph topology and find the Z dimension coordinates;On the other hand,obtaining real images through mobile phones will affect image imaging based on the natural environment,shooting time,and shooting angle.To solve the above problems,three-dimensional reconstruction based on single mortise-and-tenon line drawings and augmented reality system based on Android are mainly studied in the following aspects.In order to solve the problem of lack of hidden information and dimension information,this paper uses the surmise hidden structure algorithm to perfect the topological structure of line graph to make up for the lack of important information of line graph caused by the limitation of observing target object from a single perspective.The improved loop search algorithm based on property can be used to identify line graph,reduce invalid loop,reduce interference,improve search efficiency,and solve the problem of special mortise and tenon line graph loop search.In order to adapt to the influence of the images collected by mobile devices on rotation transformation,scaling and affine transformation,and maintain the user experience with high accuracy,good robustness and fast speed.This paper realizes the augmented reality system through image processing,three dimensional registration and virtual reality combination.By analyzing the experimental results under the influence of noise,we get the relevant conclusions.