標題: DIGITAL ELEVATION QUALITY DERIVED FROM MEDIUM-FORMAT DIGITAL CAMERAS
作者: Shih, P. T. Y.
Wu, J. Y.
Teo, T. A.
Tsai, J. C.
交大名義發表
National Chiao Tung University
關鍵字: automated matching;digital elevation model;image matching;lidar;medium-format cameras
公開日期: 1-十二月-2013
摘要: Medium-format digital cameras are a useful tool in airborne lidar missions to produce digital ortho-images. This study investigates the quality of digital elevation models (DEMs) and digital surface models (DSMs) derived from such cameras. An image-matching strategy is used to produce height information from highly overlapping images and the quality of the derived height information is analysed using synchronous lidar point clouds as the reference data. The evaluation focused on various types of land cover and DEM generation methods. The RMSE between lidar and image-derived height information for two datasets was 0054% and 0027% of the flying height in flat, bare-earth areas, but studies with manually edited vegetated areas using stereo photogrammetry revealed high uncertainties, especially in steep terrain.
URI: http://dx.doi.org/10.1111/phor.12039
http://hdl.handle.net/11536/23453
ISSN: 0031-868X
DOI: 10.1111/phor.12039
期刊: PHOTOGRAMMETRIC RECORD
Volume: 28
Issue: 144
起始頁: 416
結束頁: 435
顯示於類別:期刊論文


文件中的檔案:

  1. 000328155500006.pdf