First, a new calibration method and a detecting algorithm of projected grid pattern are proposed. Then an active 3D shape retrieval system is established.
提出了一种新的定标方法和投影模板检测算法，并构造完成了有源三维重建实验系统。
Experiments show that the method can improve the precision of retrieval, and thus the proposed approach can be applied to interactive 3d shape retrieval based 2d sketch.
实验结果表明，该方法能提高检索精度，因此可应用在2维草图查询方式的3维模型检索中。
The method for geometrical shape similarity matching among 3D models is one of main research problems of 3D model retrieval system.
三维模型几何相似性比较算法是基于内容的三维模型检索系统的一个主要研究方向。
The descriptor based on symmetry can commendably reflect shape information and be used in 3d model retrieval.
基于对称性的描述符可以很好地反映三维模型的形状信息，适用于三维模型检索领域。
The two new 3D model search methods are put forward in this thesis. These two methods all belong to shape-based retrieval techniques.
在对已有三维模型检索技术的进行系统研究的基础上，本文提出了两种基于内容的三维模型检索技术。
The Princeton Shape benchmark has become one of the most prevailing benchmarks in 3d Model Retrieval community.
普林斯顿形状基准数据库已经成为当前三维模型检索研究人员使用最为广泛的基准数据库之一。
The Princeton Shape benchmark has become one of the most prevailing benchmarks in 3d Model Retrieval community.
普林斯顿形状基准数据库已经成为当前三维模型检索研究人员使用最为广泛的基准数据库之一。
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