{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T18:40:43Z","timestamp":1771008043624,"version":"3.50.1"},"reference-count":27,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2004,2,19]],"date-time":"2004-02-19T00:00:00Z","timestamp":1077148800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Transactions in GIS"],"published-print":{"date-parts":[[2004,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>LIDAR (Light Detection and Ranging) is one of the most recent technologies in surveying and mapping. LIDAR is based on the combination of three different data collection tools: a laser scanner mounted on an aircraft, a Global Positioning System (GPS) used in phase differential kinematic modality to provide the sensor position and an Inertial Navigation System (INS) to provide the orientation. The laser sends towards the ground an infrared signal, which is reflected back to the sensor. The time employed by the signal, given the aircraft position and attitude, allows computation of the earth point elevation. In standard conditions, taking into account the flight (speed 200\u2013250 km\/hour, altitude 500\u20132,000 m) and sensor characteristics (scan angle \u00b1 10\u201320 degrees, emission rate 2,000\u201350,000 pulses per second), earth elevations are collected within a density of one point every 0.5\u20133 m. The technology allows us therefore to obtain very accurate (5\u201320 cm) and high resolution Digital Surface Models (DSM). For many applications, the Digital Terrain Model (DTM) is needed: we have to automatically detect and discard from the previous DSM all the features (buildings, trees, etc.) present on the terrain. This paper describes a procedure that has been implemented within GRASS to construct DTMs from LIDAR source data.<\/jats:p>","DOI":"10.1111\/j.1467-9671.2004.00173.x","type":"journal-article","created":{"date-parts":[[2004,2,19]],"date-time":"2004-02-19T09:02:32Z","timestamp":1077181352000},"page":"155-174","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":72,"title":["LIDAR Data Filtering and DTM Interpolation Within GRASS"],"prefix":"10.1111","volume":"8","author":[{"given":"Maria A","family":"Brovelli","sequence":"first","affiliation":[]},{"given":"Massimiliano","family":"Cannata","sequence":"additional","affiliation":[]},{"given":"Ulisse M","family":"Longoni","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2004,2,19]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0924-2716(99)00016-7"},{"key":"e_1_2_1_3_1","first-page":"43","article-title":"Digital terrain model reconstruction in urban areas from airborne laser scanning data: The method and the example of the town of Pavia (Northern Italy)","author":"Brovelli M A","year":"2002","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_4_1","unstructured":"ClarksonK1996Two dimensional convex hull. WWW document http:\/\/cm.bell\u2010labs.com\/who\/clarkson\/2dch.c"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-04245-8"},{"issue":"3","key":"e_1_2_1_6_1","first-page":"195","article-title":"Digital terrain models in urban areas","author":"Dell\u2019Acqua F","year":"2001","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-009-1740-8"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-015-3994-4"},{"issue":"3","key":"e_1_2_1_9_1","first-page":"19","article-title":"Detecting and identifying topographic objects in mapping laser altimeter data","author":"Hug C","year":"1997","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0924-2716(98)00009-4"},{"issue":"3","key":"e_1_2_1_11_1","first-page":"3","article-title":"Advanced DTM generation from LIDAR data","author":"Kraus K","year":"2001","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_12_1","first-page":"221","volume-title":"Photogrammetric Week 1999","author":"Kraus K","year":"1999"},{"issue":"3","key":"e_1_2_1_13_1","first-page":"534","article-title":"Approaches to the filtering of laser scanner data","author":"Lohmann P","year":"2000","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_14_1","volume-title":"Least Squares Adjustment: A Modern Approach","author":"Meissl P","year":"1982"},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00893171"},{"key":"e_1_2_1_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00893172"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4757-3578-9"},{"key":"e_1_2_1_18_1","unstructured":"NOAA\u2010USGS2002Airborne Topographic Mapper. WWW document http:\/\/www.csc.noaa.gov\/crs\/tcm\/atm2.html"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511804120"},{"key":"e_1_2_1_20_1","volume-title":"Proceedings of the OEEPE Workshop on Airborne Laserscanning and Interferometric SAR for Digital Elevation Models","author":"Pfeifer N","year":"2001"},{"key":"e_1_2_1_21_1","volume-title":"Digital Image Processing","author":"Pratt K","year":"1991"},{"issue":"3","key":"e_1_2_1_22_1","first-page":"227","article-title":"Airborne laser scanning: Clustering in raw data","author":"Roggero M","year":"2001","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_23_1","unstructured":"ShresthaR L CarterW E LeeM FinerP andSartoriM2000Airborne Laser Swath Mapping: Accuracy Assessment for Surveying and Mapping Applications. WWW documenthttp:\/\/www.alsm.ufl.edu\/pubs\/accuracy\/accuracy.htm"},{"issue":"3","key":"e_1_2_1_24_1","first-page":"203","article-title":"Filtering of laser altimetry data using slope adaptive filter","author":"Sithole G","year":"2001","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_25_1","volume-title":"Recent Advances in Regression Methods","author":"Vinod H","year":"1981"},{"key":"e_1_2_1_26_1","first-page":"935","article-title":"Slope based filtering of laser altimetry data","author":"Vosselman G","year":"2000","journal-title":"International Archives of Photogrammetry and Remote Sensing"},{"key":"e_1_2_1_27_1","unstructured":"VosselmanG2002ISPRS test on extracting DEMs from point clouds: A comparison of existing automatic filters. WWW document http:\/\/www.geo.tudelft.nl\/frs\/isprs\/filtertest\/"},{"key":"e_1_2_1_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0924-2716(99)00011-8"}],"container-title":["Transactions in GIS"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1467-9671.2004.00173.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1467-9671.2004.00173.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,17]],"date-time":"2023-11-17T19:18:16Z","timestamp":1700248696000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1467-9671.2004.00173.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,2,19]]},"references-count":27,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2004,4]]}},"alternative-id":["10.1111\/j.1467-9671.2004.00173.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1467-9671.2004.00173.x","archive":["Portico"],"relation":{},"ISSN":["1361-1682","1467-9671"],"issn-type":[{"value":"1361-1682","type":"print"},{"value":"1467-9671","type":"electronic"}],"subject":[],"published":{"date-parts":[[2004,2,19]]},"assertion":[{"value":"2004-02-19","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}