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第 39 卷第 3 期测绘学报 Vol. 39 , No . 3
20 10 年 6 月 Act a Geo da etica et Carto graphica Sinic a J un. ,2010
文章编号:1001 1595 (2010) 03 0238 07
基于近景摄影测量的海上打桩定位方法研究
谢义林1 ,姚连璧1 ,2 ,季惠丽1
1. 同济大学测量与国土信息工程系, 上海 200092 ; 2. 现代工程测量国家测绘局重点实验室, 上海 200092
Approach of Sea Piling Positioning Based on Close range Photogrammetry
XIE Yilin1 , YAO Lia nbi1 ,2 , J I Huili1
1. Dep artment of Surveying a nd Geo Infomatic s , Tongji University , Shanghai 200092 , China ; 2. Key La boratory of Adva nce d
Engineering of St ate Bure au of Surveying a nd Mapping , Shanghai 200092 , China
Abstra ct :In orda nce with the theory of clo se ra nge photo gra mmetry , sea piling po sition mo del is intro duced
using a calibrated non D ca mera a nd a ra ngefinder. Using Ro bert edge detector a nd Hough tra nsform ,
re al time proce ssing ima ges collected D ca mera to get the straight line of pile edge ; using the interior a nd
exterior orient ation element s D ca mera s , the ra ngefinder coordinate s a nd it s mea sured value , a mathematic al
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mo dels to solve pile center coordinates is set up ording with different piling type (up , down , straight) . By the
initial value of pile center coordinate s a nd Newton downhill metho d , pile center coordinate s D elevation level
is o bt ained , a s re al time ess to engineering coordinates of pile center in de sign leve