3D Object Recondtruction By Point Coordinates Of2D Line Drawings

With the development of science and technology, communication with the graphs between people and computers is being paid attention and on many occasions its importance is shown. In order to make the computer see and understand object’s projection chart, we need to study computer interpreting projection chart’s mechanism. In order to get ideal3D graphics, we can get the relevant data information from line drawings firstly, then study the projection without the hidden information with what we have learned in the chart, ultimately, the researchers get the required entities with the aid of reconstruction methods, human understanding of the entity is by means of object of external shape to feel in the modern and contemporary age, for example with the help of edges,planes and solids of the object to identify and remember the object, at the same time, people stored into three-dimensional shape of information in the visual effect. And we also reflect on things with using3D thinking way, so, in order to get more cleat shape of the object structure, as well the images were performed more comfortable and more accurate in the man-machine communication.. In order to automatic transfer to3D model from2D line drawings in computer, we must read from the2d drawings in the necessary information firstly, the information using the corresponding data for data organization, finally get the graphic elements, which is formed by the corresponding data of the existing geometric elements and location, we called3D reconstruction.3D Reconstructions is one of import research topic in computer graphics, the researchers have studied from several aspects by using a variety of methods within half a century, and made significant achievements. But with human beings’further explore in the field science, as well as all kinds of the exploration of the frontier problems, it is a new challenge with3D reconstruction of early method to modern and contemporary researchers, we should continue to continue to explore the new method on the field of3D reconstruction. With the rapid development of computer science, it is great importance and play a major role in the field of reconstruction, it made3D image reconstruction process become more specific and intuitive with the aid of computer operation ability and computer software simulation functions. It was conducive to our analysis and solution in the research area. It is the main direction by3D of2D in the recent research. It is more important for3D reconstruction problem through the line chart with the straightforward of2D on the engineering.It is a research subject in computer vision to3D Reconstruction of an object represented by a single2D line drawing. Previous works on3D reconstruction from2D line drawings focus on objects with lines, plane, view, and so on. This paper mainly studies the3D reconstruction from2D line drawings. Besides, a new approach is proposed:it is that for the research of the point coordinates of2D line drawings, so as to achieve the object reconstruction by the reconstruction of point coordinates. The reconstruction process includes:①the collection of point coordinates (X,Y) of2D line drawings;②the derivation of mathematical formula about the reconstruction of the point of2D line drawings, and calculating the corresponding point of the3D coordinates;③the regeneration of3D graphics with3D points;④analyze error by the proportional of parallel of axonometric projection, in order to prove the accuracy of the method.This paper mainly research3D reconstruction from2D line drawings, analyze simple line drawings and infer a general rule further, processing analytic way to geometric figure,as Mathematics said(mainly point coordinates, formula proposed),meanwhile analyzing and optimizing possible errors. Make experimental results optimum and unify recuperative3D things and people’s view system.