基于多投影面和高清摄影的数字正摄影像图

Generation of Digital Orthophoto Map Based on Multi-Projection-and-HD Photography

数字正摄影像图是文物现状调查基础资料,也是文物现状保留及相关保护的重要手段。以千手观音为例,提出基于多投影面和高清摄影的数字正摄影像图处理方法和流程,对同一千手观音手,选择多个投影面进行高清摄影,并基于多投影基准面进行纹理映射来生成高精度数字正摄影像图。本方法可以减少传统单个投影面产生的图像投影变形,提高数字正摄影像图的精度和逼真度。

Digital Orthophoto Map（DOM） provides first-hand basic information for the status investigation of cultural relics as an important approach to reserve and protect cultural relics in their current status.A technology for producing multi-projection and HD-videoed-based Thousand-Arm Guanyin DOM was proposed by HD videoing the same Bodhisattva hand from multiple projection planes and performing the texture mapping based on multiple projection datum planes to produce high-accuracy digital orthophoto map.This technology decreases distortion of image projection caused by single projection plane in conventional methods and increases DOM accuracy and fidelity.