Intelligent generation and optimization method of equipment vehicle 3D model based on sketch
In order to solve the issue of poor quality of 3D model generated by traditional sketch-based 3D modeling technology,a novel intelligent 3D model generation and optimization method was proposed.The shape and perspective features were extracted from hand-drawn sketches.Deep neural network based on the signed distance field was used to generate a 3D model based on the 2D sketch shape features.Based on the 2D-3D alignment strategy,the differential rasterization of 3D model was made under the predicted sketch perspective.An interactive hand-drawn 3D model design improvement method was proposed,which could adjust 3D silhouettes according to hand-drawn contour lines.The experimental results showed that the 3D model generated by the proposed method could get closer to hand-drawn sketch and cope with the uncertainty of the perspective of hand-drawn sketches,and reduce the cost of manual optimization.The research results could provide technical support for the generative conceptual equipment design.
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