一种基于邻接约束的交互式文物模型复原系统  

A computer-assisted system for virtual relic assembling based on adjacency constraint

作　　者：李姬俊男[1] 耿国华[1] 周明全[1] 李姗姗[1] 

机构地区：[1]西北大学信息科学与技术学院,陕西西安710127

出　　处：《西北大学学报（自然科学版）》2016年第1期55-60,共6页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(61373117)

摘　　要：提出了一种基于邻接约束的计算机辅助匹配方法,该方法的重点在于关注处理流程中的用户领域经验和直觉。通过对拼合过程中几何约束的定性和定量分析,并定义一种灵活、可扩展的描述符,将碎片的所属位置限制在一个合理的空间范围内,由此确定拼合线索。在系统的设计上考虑到专家的领域知识,通过规范其操作规则,引导受损文物的重组。实验表明该系统的有效性。A computer-assisted constraint-based methodology was propose for virtual reassembly of Cultural Heritage （CH） artworks. Instead of focusing on automatic, unassisted reassembly, the study targeted the sce- narios where the reconstruction process is not only based on shape properties, but also is built over the experi- ence and intuition of a CH expert. The purpose is therefore to design a flexible interactive system, based on the selection of a set of constraints which relates different fragments, according to the understanding and expe- rience of the CH operator. Once the user has defined those constraints, the system searches for a suitable solu- tion, using a global energy minimization strategy that considers simultaneously all the pieces involved in the re- construction process. Additionally, the framework provides the possibility to work in a hierarchical way, mim- icking the traditional physical procedure that archaeologists use to reassemble tangible fractured objects. The framework is designed to work even with fragments that have been severely damaged or eroded. On those data sets, automatic approaches may often fail, since the fractured regions do not contain enough geometric infor- mation to infer the correct matches.

关 键 词：文物虚拟复原 人机交互 邻接约束 几何特征可视化 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]