文物测绘中高清影像立面图制作关键技术研究

Research on the key technology of high definition image elevation image in cultural relic surveying and mapping

为解决传统文物测量绘制立面图工作效率低、过程复杂、成本高,且对作业人员的文物专业素质要求高等问题,本文重点阐述以地面三维激光扫描技术为基础,通过点云与纹理数据获取、数据处理、高清影像立面图制作等关键技术,制作文物高清影像立面图的方法,并对成果与点云数据精度进行比对,验证成果精度能否满足文物精度要求。结果表明,高清立面影像图不丢失文物本体表面任何信息,不但能满足文物保护的基本需求,而且在保护设计、修复等方面具备传统图件无法代替的优势。

In order to solve the problems of low efficiency,complex process,high cost,and high requirement for professional quality of workers in drawing elevations using cultural relic surveying,this paper focuses on the method of producting the high definition image elevation of cultural relics based on the ground 3D laser scanning technology and through key technologies such as point cloud and texture data acquisition,data processing,and high definition image elevation production,and compares the accuracy of the results with the point cloud data to verify whether the accuracy of the results can meet the accuracy requirements of cultural relics.The results show that high definition elevation image does not lose any information on the surface of cultural relics,which can not only meet the basic needs of cultural relics protection,but also has the advantage that the traditional image can not replace in the protection design and restoration.