FILTERING AIRBORNE LIDAR DATA BY AN IMPROVED MORPHOLOGICAL METHOD BASED ON MULTI-GRADIENT ANALYSIS
نویسندگان
چکیده
منابع مشابه
Filtering Airborne Lidar Data by an Improved Morphological Method Based on Multi-gradient Analysis
The technology of airborne Light Detection And Ranging (LIDAR) is capable of acquiring dense and accurate 3D geospatial data. Although many related efforts have been made by a lot of researchers in the last few years, LIDAR data filtering is still a challenging task, especially for area with high relief or hybrid geographic features. In order to address the bare-ground extraction from LIDAR poi...
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Filtering is one of the core post-processing steps for airborne LiDAR point cloud. In recent years, the morphology-based filtering algorithms have proven to be a powerful and efficient tool for filtering airborne LiDAR point cloud. However, most traditional morphology-based algorithms have difficulties in preserving abrupt terrain features, especially when using larger filtering windows. In ord...
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One conventional method of topographic data collection is image data such as satellite images and aerial photographs. However, due to the low spatial resolution and time-consumption of the conventional data collection process, all the methods that use image data have limitations. The recent advances in the research on airborne Light Detection And Ranging (LIDAR) data enable the collection of mo...
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ژورنال
عنوان ژورنال: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
سال: 2013
ISSN: 2194-9034
DOI: 10.5194/isprsarchives-xl-1-w1-191-2013