一种单幅图像及其辅助曲线的三维建模方法

针对单幅图像的三维建模存在对用户的建模意图还原度不高、模型不够真实的问题,提出了一种通过构造曲线和辅助曲线来创建三维模型的方法.离散图像并补全构造曲线,为每条构造曲线添加辅助曲线.寻找离散后构造曲线间的对称关系并设置对称平面,计算曲线在三维空间中的位置.移动、旋转辅助曲线,得到三维模型,根据特征点位置和类型组合三维模型.实验结果表明,该方法得到的三维模型较符合用户的建模意图,同时具有算法简单、建模速度快、实用性强等特点.

3D Modeling Method for a Single Image and its Auxiliary Curves

Since the 3D modeling of an image has the problem that the user’s modeling intention is not highly restored and lowrealism of the model,this paper proposes a method of creating a 3D model by structural curves and auxiliary curves.Discreting the image and completing the structural curves,then adding auxiliary curves to the structural curves.Finding the symmetry relationship between the structural curves after discreting and setting symmetry plane to calculate the position of structural curves in 3D space.The auxiliary curves are moved and rotated to obtain 3D model,and then these 3D models are combined according to the position and type of the feature points.The experimental results showthat the 3D model obtained by this method is more in line with the user’s modeling intention,and this method has the characteristics of simple algorithm,fast modeling and strong practicability.