The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLI-B3
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B3, 373–380, 2016
https://doi.org/10.5194/isprs-archives-XLI-B3-373-2016
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B3, 373–380, 2016
https://doi.org/10.5194/isprs-archives-XLI-B3-373-2016

  09 Jun 2016

09 Jun 2016

COMPARISON OF SEMI AUTOMATIC DTM FROM IMAGE MATCHING WITH DTM FROM LIDAR

Aji Rahmayudi and Aldino Rizaldy Aji Rahmayudi and Aldino Rizaldy
  • Center of Topographic Mapping and Toponyms, Geospatial Information Agency, Bogor, Indonesia

Keywords: Automatic DTM, Image Matching, LIDAR

Abstract. Nowadays DTM LIDAR was used extensively for generating contour line in Topographic Map. This method is very superior compared to traditionally stereomodel compilation from aerial images that consume large resource of human operator and very time consuming. Since the improvement of computer vision and digital image processing, it is possible to generate point cloud DSM from aerial images using image matching algorithm. It is also possible to classify point cloud DSM to DTM using the same technique with LIDAR classification and producing DTM which is comparable to DTM LIDAR. This research will study the accuracy difference of both DTMs and the result of DTM in several different condition including urban area and forest area, flat terrain and mountainous terrain, also time calculation for mass production Topographic Map. From statistical data, both methods are able to produce 1:5.000 Topographic Map scale.