近景摄影测量用于直接生成塑像施工图纸

Direct Creation of Construction Drawings for Buddha Statue by Using Close-range Photogrammetry

对高 6.1 9m的塑像模型实施近景摄影测量以直接生成高 61 .9m铜表面塑像的施工图纸。本文报道此工程中建立精度为± 0 .0 5 mm的特高精度工业测量控制网、在解析测图仪上同时处理 4个像对、对塑像进行表面处理、统计塑像耗铜量以及直接提供铜塑像施工图纸等项研究成果。与相仿工程相比较 。

A great Buddha Statue made of copper with 61.9 m high has been build in the countryside around the city Nanhai,Province Guandong,South China.Close range photogrammetric techniques have been used for the Buddha model with high 6.19 m(scale 1∶10,and made of polymethylmethacrylate) to getting 3D coordinates of over 70 000 points located on the 300 sections of the model.In order to provide the model point accuracy with in ±2 mm,a extra high accuracy industrial control net with 4 surveying pier with accuracy ±1.0 mm was set up around the model.Several tens orientation marks have been placed on the different parts and measured with accuracy ±0.2 mm form the above mentioned piers.Main 4 stereopairs taken with the P31 camera and around the model are simultaneously processed on the BC 2 analytical plotter.The accuracy of absolute orientation is higher than ±0.9 mm.Finally,about 300 sections construction drawings have directly been offered for a famous factory,and the close range photogrammetric data have been used for the design and construction of inner complex strut steel construction of the Buddha.