基于数字摄影测量的馆藏文物三维重建方法研究
Research on 3D reconstruction method of cultural relics in library collection based on digital photogrammetry
郭瑞 1张磊 1徐进 1闫东旭 1李涛1
作者信息
- 1. 甘肃省科学院自动化研究所,甘肃兰州 730000
- 折叠
摘要
为了降低人为操作对文物的损害风险,需开展馆藏文物三维重建方法的研究,以通过数字化技术的应用实现对文物的非接触性记录和数字化保存.目前,现有的三维重建方法存在重建图像的清晰度较低,还原度较差等缺点,因此本文提出了一种基于数字摄影测量的馆藏文物三维重建方法.首先对馆藏文物进行图像采集;然后提取文物的特征点,并通过匹配馆藏文物影像来获取对应关系;再采用不规则离散点构建三角不规则网格(TIN)来建模文物的三维形状;最后,为进一步提高重建效果,进行纹理映射,将高质量的图像纹理信息应用到三维模型上.经过测试和分析,验证了所提出的方法在馆藏文物的三维重建中具有良好的整体效果,分辨率可达到预期的2 800像素×2 800像素.该方法可为文物修复工作提供可靠的参考依据.
Abstract
In order to reduce the risk of damage to cultural relics caused by human operations,non-contact recording and digital preservation of cultural relics are achieved through the application of digital technolo-gy in this paper,and research on 3D reconstruction methods for cultural relics in museum collections is car-ried out.At present,the existing 3D reconstruction methods have low clarity and poor restoration of the re-constructed images.Therefore,this study proposes a 3D reconstruction method for museum collections based on digital photogrammetry.This method first collects images of cultural relics in the collection,then extracts feature points of the relics,and obtains corresponding relationships by matching the images of cul-tural relics in the collection.Next,a triangular irregular mesh(TIN)is constructed using irregular discrete points to model the 3D shape of cultural relics.Finally,in order to further improve the reconstruction effect,it conducted texture mapping and applied high-quality image texture information to the 3D model.After testing and analysis,the proposed method has shown good overall results in the 3D reconstruction of cultural relics in the museum collection,with a resolution of up to the expected 2 800 pixels × 2 800 pixels.Therefore,this method can provide a reliable reference basis for cultural relic restoration work.
关键词
数字摄影测量/馆藏文物/三维重建/纹理映射Key words
Digital photogrammetry/Collection of cultural relics/3D reconstruction/Texture mapping引用本文复制引用
基金项目
国家自然科学基金项目(62066004)
国家档案局科技计划项目(2023-X-060)
甘肃省科学院科技计划项目(2021JK-07)
甘肃省科学院科技产业化项目(2021CY06)
出版年
2024
NETL
NSTL
万方数据