3D Surface Reconstruction of Car Body Based on Any Single View

With the continuous development of the automobile industry, fast and efficient body styling methods have become crucial. Although traditional hand-drawn sketches and 3D modeling are feasible, they often consume lots of time, manpower and financial resources when faced with complex design requirements. Therefore, a quick method for car body modeling has become a hot topic in automotive design. This paper proposes a three-dimensional automotive wireframe model generation and surface reconstruction method based on a single image in any view. Firstly, 3D wireframe model generation for a single car image in any view. By the MobileNet V2 network trained based on the established 2D car body library USMV3085, the visual angle of a specific single car image in any view can be identified, following the relevant wireframe model can be generated with the weight coefficients computed by constrained least squares method according to the key points and the corresponding rotated key points of the 3D wireframe library. Secondly, the corresponding 3D surface is reconstructed automatically. With the skeleton line firstly computed by the Skeleton Generation Algorithm for every 2D projected split part of the 3D wireframe model, corresponding 3D boundary relation pairs and control polygons are obtained, following the 3D surface is reconstructed integrating all split parts. Compared to traditional computer-aided shape design, this automatic method greatly shortens the research and development cycle and has certain reference significance in car body design.