A Two-Step Semiglobal Filtering Approach to Extract DTM From Middle Resolution DSM
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DOI: 10.1109/lgrs.2017.2725909
Abstract: Many filtering algorithms have been developed to extract the digital terrain model (DTM) from dense urban light detection and ranging data or the high-resolution digital surface model (DSM), assuming a smooth variation of topographic relief.… read more here.
Keywords: terrain; dsm; dtm; step ... See more keywords