DSM measurement for exposed gravel surface using close-range photogrammetry with multi-scale images

Jui Teng Tsung, Chi Kuei Wang

研究成果: Conference contribution

摘要

Measuring the exposed gravel surface geometry is important for understanding the flow characteristic. This research has developed a reliable and precision methodology to generate the Digital Surface Model (DSM) of gravel surfaces using multi-scale images from close-range photogrammetry. The camera was calibrated on-site corresponding to different scale images with a self-calibration bundle adjustment using coded retro-reflective targets and the DSM of the gravel surface was reconstructed for two scales from different scale images relatively. The small scale DSM was used as the control surface covering entire area (4.5 m × 4.5 m). The large scale DSMs contain more detailed elevation variation covering the diagonals (6 m × 1 m) of entire area and are registered to the small scale DSM by iterative closest point (ICP). Three fields with a size of 4.5 m × 4.5 m have been tested and discussed, and the results are provided and validated with high accuracy total station. The ortho-images can be generated and apply for determination of grain size distribution.

原文English
主出版物標題32nd Asian Conference on Remote Sensing 2011, ACRS 2011
頁面2249-2254
頁數6
出版狀態Published - 2011 十二月 1
事件32nd Asian Conference on Remote Sensing 2011, ACRS 2011 - Tapei, Taiwan
持續時間: 2011 十月 32011 十月 7

出版系列

名字32nd Asian Conference on Remote Sensing 2011, ACRS 2011
4

Other

Other32nd Asian Conference on Remote Sensing 2011, ACRS 2011
國家Taiwan
城市Tapei
期間11-10-0311-10-07

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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  • 引用此

    Tsung, J. T., & Wang, C. K. (2011). DSM measurement for exposed gravel surface using close-range photogrammetry with multi-scale images. 於 32nd Asian Conference on Remote Sensing 2011, ACRS 2011 (頁 2249-2254). (32nd Asian Conference on Remote Sensing 2011, ACRS 2011; 卷 4).