报告人：Clive Fraser（墨尔本大学 教授）

时间：2024年5月20日（周五）10:00-11:00

 地点：测绘馆301会议室

报告简介：

The utilisation of targets/markers is near universal in high-precision industrial and engineering photogrammetry, whereas the adoption of automated, targetless orientation and object reconstruction is becoming increasingly more widespread across other application domains such as architectural and archaeological surveys and drone-based photogrammetry. This naturally poses the question of why so-called Structure-from-Motion (SfM) techniques are yet to be employed to any significant extent in large-scale industrial vision metrology, in spite of the obviously appealing prospect of dispensing with artificial signalisation, be it through physical targets or projection schemes. This presentation first reviews the principal distinctions between SfM and marker-based approaches, with the emphasis being upon measurement accuracy, reliability and practicability. The potential for an integrated approach employing both SfM and targets is then discussed, with project examples of where such an integrated network orientation and point determination approach proved to be optimal in terms of both accuracy and productivity. The three projects involved camera calibration; 3D measurement of models of the lunar surface, with subsequent image exterior orientation determination for landing craft simulation; and deformation measurements of an inflatable antenna on the International Space Station.

报告人简介：

Prof. Fraser is a Fellow of the Australian Academy of Technological Sciences and Engineering and the American Society of Photogrammetry and Remote Sensing (ASPRS), and he is an Honorary Member of The Remote Sensing and Photogrammetric Society of the UK. His particular areas of research interest are in digital close-range photogrammetry and industrial measurement systems. In recognition of his academic and professional work he has earned numerous international awards including the Fairchild Photogrammetric Award, Outstanding Technical Achievement etc. Prof. Fraser has a number of active international research and industry collaborations. He also serves on the Editorial Boards of several leading international journals dealing with photogrammetry and remote sensing and he has authored more than 320 publications.