RAPID IDENTIFYING STRUCTURAL CRACKS WITH DIGITAL CLOSE RANGE PHOTOGRAMMETRY
The digital close range photogrammetry method used to identify structural cracks is an innovation of tradition surveying method. This paper discusses possibility, accuracy and work pattern to acquire structural cracks information with digital close range photogrammetry. In the research, digital photogrammetric program is adopted respectively to transact data&images and acquire 3-D spatial coordinates of cracks typical characteristic, coupled with the research of orientation calculating model of structural cracks to obtain their orientations based on 3-D control survey with total station instrument and digital photograph with common digital camera. Consequently, it is easy to get the information of 3- D traces and orientations and further draw trace chart of cracks by displaying model. This method can raise the working efficiency of data processing for well structural cracks monitoring, and the research will provide experience for the auto monitoring of structural cracks in the future.
Qian-Xin Zhou Hai-Qing Yuan Yan-Yan Tao
School of Civil Engineering and Architecture, Wuhan University of Technology Wuhan University of Science and Technology Zhongnan Branch
国际会议
长沙
英文
617-622
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）