D shape retrieval of object surface is an important problem in computer vision.
物体表面三维形状恢复是计算机视觉的一个重要研究内容。
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。
In view of the fact that geometric entities are recorded in vector form in graphics file, this paper presents an algorithm based on modified geometric hashing for shape retrieval.
针对图形文件以矢量方式记录几何实体的特点，提出了一种基于改进几何哈希法的图形检索算法。
This paper presents the design and implementation of a content-based image retrieval system which acquires effective and efficient similar shape retrieval using a modified geometric hashing technique.
文中介绍了一个基于内容的图像检索系统的设计和实现，它利用改进的几何散列技术能够获得快速而且准确的相似形状检索。
This paper presents the design and implementation of a content-based image retrieval system which acquires effective and efficient similar shape retrieval using a modified geometric hashing technique.
文中介绍了一个基于内容的图像检索系统的设计和实现，它利用改进的几何散列技术能够获得快速而且准确的相似形状检索。
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