COMPARISON OF TERRESTRIAL LASER SCANNER WITH DIGITAL AERIAL PHOTOGRAMMETRY FOR EXTRACTING RIDGES IN THE RICE PADDIES

摘要: Abstract The patches of the rice paddies are generally positioned by a traditional surveying method such as Plane Table and Total Station in Korea. This study has been undertaken to check whether TLS (Terrestrial Laser Scanner) could meet accuracy standard, compare survey data with those one new modern technologies digital aerial photogrammetry RTK GPS. As result, it is shown that terrestrial laser scanning 3D stereo plot technology positional standard artificial target. extraction ridges is, however, difficult due limitation tone colour identification noise image, low density point clouds scanning. It therefore expected more researches into sophisticated algorithms for natural boundary removal image required.