三维激光扫描的文物破损区域修复研究

Restoration of relics damaged area by 3D laser scanning

为了提高文物破损区域修复能力,提出基于激光扫描的文物破损区域三维虚拟修复方法。构建文物破损区域三维激光扫描图像采样模型,采用激光扫描方法进行文物破损区域三维虚拟图像特征采集和信息配准,在虚拟计算机视觉下进行文物破损区域三维虚拟图像重构,结合模糊信息增强技术进行文物破损区域三维图像的信息增强处理,构建三维图像特征重构模型,采用高分辨的视觉信息重构技术进行文物破损区域三维激光扫描图像的信息重构和特征提取,提取文物破损区域三维激光扫描图像视觉特征量,采用三维视觉重构技术进行文物破损区域三维激光扫描图像特征配准设计,构建文物破损区域三维激光扫描图像的多维直方图结构模型,基于激光扫描技术实现文物破损区域三维虚拟修复。将本文方法与传统方法进行对比,在迭代次数为100时,本文方法的精度最高为0.923,所用时间最短为9.23 s,输出信噪最高为46 dB,开销最低为36元,仿真结果表明,采用本方法能有效实现文物破损区域三维虚拟修复,且修复的精度较高。

In order to improve the ability of repairing damaged area of cultural relics,a 3 D virtual restoration method of damaged area of cultural relics based on laser scanning is proposed.The sampling model of 3 D laser scanning image in damaged area of cultural relics is constructed,the feature collection and information registration of 3 D virtual image in damaged area of cultural relics are carried out by laser scanning method,the 3 D virtual image of damaged area of cultural relics is reconstructed under virtual computer vision,the information enhancement of 3 D image of damaged area of cultural relics is carried out with fuzzy information enhancement technology,and the 3 D image feature reconstruction model is constructed.The information reconstruction and feature extraction of 3 D laser scanning image in damaged area of cultural relics are carried out by using high resolution visual information reconstruction technology,the visual feature quantity of 3 D laser scanning image in damaged area of cultural relics is extracted,the feature registration design of 3 D laser scanning image in damaged area of cultural relics is carried out by using 3 D vision reconstruction technology,and the multi-dimensional histogram structure model of 3 D laser scanning image in damaged area of cultural relics is constructed.3 D virtual restoration of damaged area of cultural relics is realized based on laser scanning technology.Compared with the traditional method,when the number of iterations is 100,the accuracy of this method is0.923,the time is 9.23 s,the output signal-to-noise is 46 dB,and the cost is 36 RMB.The simulation results show that this method can effectively realize the three-dimensional virtual restoration of cultural relics damaged area,and the precision of restoration is high.