计算机应用

• 人工智能与仿真 •    下一篇

实时交互的浮雕纹理模型构建方法

张洛声1,童晶2   

  1. 1. 河海大学 物联网工程学院 江苏常州
    2. 河海大学 物联网工程学院,江苏 常州 213022
  • 收稿日期:2017-03-02 修回日期:2017-04-10 发布日期:2017-04-10 出版日期:2017-05-13
  • 通讯作者: 童晶

Real-Time Interaction Based Modeling Method for 3D Objectwith Relief-Texture

Luo-Sheng ZHANG,TONG Jing   

  • Received:2017-03-02 Revised:2017-04-10 Online:2017-04-10 Published:2017-05-13
  • Contact: TONG Jing

摘要: 为了快速生成带浮雕纹理的三维模型,提出一种实时交互的浮雕纹理模型构建方法。方法分两步:第一步,将生成浮雕的源模型或图像转换为初始深度图,并进一步转换为梯度图,再通过梯度域的压缩、过滤,求解线性方程重建出整体连续的浮雕深度图;第二步,借助基于网格求交的浮雕纹理映射算法将浮雕深度图贴在目标模型表面,并通过移动、旋转、缩放等操作实时在目标模型三维空间上修改浮雕效果,最终重建目标模型网格,生成浮雕纹理模型。实验表明,所提方法可快速实现在一个目标模型上生成凹浮雕、凸浮雕、多浮雕等效果,所得模型无需经过其他处理,可直接应用于3D打印,打印效果较好。

Abstract: In order to reconstruct 3D object with relief-texture quickly, a modeling method based on real time interaction for 3D object is proposed. Firstly, one initial depth image is computed by the input object or image which generates relief texture and then transformed into one gradient image. The obtained gradient image is compressed and then reconstructed to relief depth image with Poisson equation. Secondly, the optimized relief depth image is pasted on the goal object surface by real-time interaction through the proposed relief-texture-mapping algorithm based on mesh intersection. The real-time interaction by user includes translation, rotation and scale under 3D scene directly. Finally, one object with relief-texture is achieved through re-triangulation of the goal model. The experiments show that our method can generate concave or convex, especially multiple relief on the goal object rapidly and the final model can be applied to 3D Printing directly without any other process.

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