基于AR的漆器表面构造细节虚拟重建仿真  

Virtual Reconstruction Simulation of Lacquerware Surface Structure Details Based on AR

作　　者：王乐 任小甲 WANG Le;REN Xiao-jia(College of Information,Shanxi Agricultural University,Jinzhong Shanxi 030800,China)

机构地区：[1]山西农业大学信息学院,山西晋中030800

出　　处：《计算机仿真》2021年第5期302-306,共5页Computer Simulation

基　　金：山西省高等学校哲学社会科学研究项目(2020W337)。

摘　　要：漆器的数字化保护仍然处于实践探索阶段,呈现形式较为单一,无法实现表面纹理的深入刻画与展示,导致细节重建效果较差。为解决上述问题,提出基于AR的漆器表面构造细节虚拟重建仿真。将AR系统组成结构分为真实场景获取、虚拟对象数据库等部分,定义其具有虚实融合、实时交互与三维注册三方面特征;设计采集装置,综合考虑光照条件、拍照方向等注意事项,准确分配表面采集点,控制采集误差;利用直方图变换方法增强图像对比度,同时通过空域处理增强高频成分,去除模糊现象;建立图像点到文物模型表面对应关系,计算转换矩阵,通过三角网格映射得出面片间纹理,调节映射参数,提高片面间纹理连续性,达到细节重建效果。仿真结果表明,所提方法重建后的漆器表面图像纹理清晰、能够保留更多细节特征。Currently, the digital protection of lacquerware is presented in a single form, and lack of in-depth description and display of surface texture, resulting in a poor detail reconstruction effect. Therefore, this paper put forward a virtual reconstruction simulation of lacquer surface structure details based on AR. The structure of the AR system was divided into a real scene and virtual object database, which had the characteristics of virtual reality fusion, real-time interaction, and three-dimensional registration. The acquisition device was designed. It was necessary to consider the illumination condition and the direction of taking photos in order to allocate the acquisition points accurately and control the acquisition error. The image contrast was enhanced by the utilization of the histogram transformation method. Meanwhile, based on the spatial domain, the enhanced high-frequency component was processed to eliminate the ambiguity. The corresponding relationship between the image points and the surface of the cultural relic model was established. The transformation matrix was calculated. According to the mapping of a triangular mesh, the texture between patches was obtained. The mapping parameters were adjusted to improve the continuity of texture between faces, obtaining the effect of detail reconstruction. The simulation results show that the texture of the reconstructed lacquer surface image is clear and can retain more details.

关 键 词：增强现实 漆器表面构造 细节虚拟重建 直方图变换 空域处理 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]