{"guid":"2c1fd76d-c56d-5c22-9535-d79d920240b3","title":"Pointclouds für OSM","subtitle":null,"slug":"fossgis2019-589-pointclouds-fr-osm","link":"https://pretalx.com/fossgis2019/talk/7WMTLR/","description":"Der Vortrag beschreibt ein selbstgebautes Geräte zur Laserscandatenerfassung und anschließende Visualisierung mittels Potree.\n\nEin System basierend auf einem Raspberry Pi mit GPS, Sensorhat (IMU) und Laserscaner (Scanse) wurde in einer Fahrtasche montiert und dient als Datenlogger. Dabei werden bis zu 500 Punkte pro Sekunde gemessen.\n\nDie anschließende Datenaufbereitung besteht in einer Interpolation des GPS-Pfades, einer Bestimmung der Orientierung und einer darauf aufbauenden Ermittlung der Lasermesspunkte in globalen Weltkoordinaten. \nAls Wochenendprojekt gibt es hier noch deutliches Verbesserungspotential.\n\nDiese Daten werden anschließend für Potree [1] aufbereitet, mit diesen auf Octree basierenden System können riesige Punktwolken im Netz visualisiert werden (so ist z. B. komplett Dänemark als Laserscan auf Gebäudelevel abrufbar[2]). Potree verfügt über faszinierende Visualisierungsmethoden auf WebGL-Basis. Mit den Möglichkeiten zur Vermesung besteht die Hoffnung Daten für OSM sammeln zu können (Gebaudehöhen,  Durchfahrtshöhen, ...)\nDie Referenzierung und Anzeige der OSM-Tiles übernimmt Cesium.  \n\nLetzter Stand:\nhttps://tools.wmflabs.org/wp-world/potree/p1/test50.html\ndazugehörige Berechnungen [3] und Messdateien [4]\n\n [1] http://potree.org\n [2]  http://potree.entwine.io/data/denmark.html\n[3] https://nbviewer.jupyter.org/urls/tools.wmflabs.org/wp-world/potree/2019-01-06-gpx-Sweep-vertical-02-potree-short.ipynb\n[4]\nhttps://tools.wmflabs.org/wp-world/potree/SWEEP-2018-11-25 14:58:10.717850.csv\nhttps://tools.wmflabs.org/wp-world/potree/GPS-2018-11-25 14:58:18.379819.csv\nhttps://tools.wmflabs.org/wp-world/potree/Track-2018-11-25 14:58:16.560010.csv","original_language":"deu","persons":["Tim Alder"],"tags":["fossgis2019","589","2019","Geo","OpenStreeetMap","FOSS","Dresden"],"view_count":172,"promoted":false,"date":"2019-03-13T00:00:00.000+01:00","release_date":"2019-03-14T01:00:00.000+01:00","updated_at":"2026-03-20T16:30:08.762+01:00","length":318,"duration":318,"thumb_url":"https://static.media.ccc.de/media/events/fossgis/2019/589-hd.jpg","poster_url":"https://static.media.ccc.de/media/events/fossgis/2019/589-hd_preview.jpg","timeline_url":"https://static.media.ccc.de/media/events/fossgis/2019/589-hd.timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/events/fossgis/2019/589-hd.thumbnails.vtt","frontend_link":"https://media.ccc.de/v/fossgis2019-589-pointclouds-fr-osm","url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_title":"FOSSGIS 2019","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019","related":[{"event_id":6779,"event_guid":"044219ec-981e-5726-b30d-8317879ee5b2","weight":5},{"event_id":6781,"event_guid":"6805ef29-7080-5b95-831f-f12dc63300d4","weight":5},{"event_id":6782,"event_guid":"d8b5fb56-e8e9-5ad5-91d0-c5eb8a1740fb","weight":6},{"event_id":6783,"event_guid":"96ed8668-d10d-5e95-8b34-49c5dac239f0","weight":5},{"event_id":6786,"event_guid":"6410a81e-2021-55bd-a190-9b4d0c7e663f","weight":5},{"event_id":6796,"event_guid":"51d3b894-e061-570d-8d94-d0ce984b37c4","weight":10},{"event_id":6797,"event_guid":"add3a4b2-2799-54ba-aa35-3764c9044d9d","weight":13},{"event_id":6804,"event_guid":"95f8217e-9bca-5745-a051-d88775aa8d56","weight":6},{"event_id":6812,"event_guid":"604049b2-25f5-52f1-b98a-8c7cfb08a1e8","weight":6},{"event_id":6822,"event_guid":"6a104867-934e-5f43-bb1a-3985a94bdfdd","weight":5},{"event_id":6823,"event_guid":"c52a9dbc-5365-5d08-9bfc-5d5df381b218","weight":5},{"event_id":6847,"event_guid":"2c8ff094-64cf-5605-8e94-10059a925607","weight":10}],"recordings":[{"size":80,"length":317,"mime_type":"video/mp4","language":"deu","filename":"fossgis2019-589-deu-Pointclouds_fuer_OSM_hd.mp4","state":"new","folder":"h264-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2019-03-14T00:11:25.167+01:00","recording_url":"https://cdn.media.ccc.de/events/fossgis/2019/h264-hd/fossgis2019-589-deu-Pointclouds_fuer_OSM_hd.mp4","url":"https://api.media.ccc.de/public/recordings/33813","event_url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019"},{"size":4,"length":318,"mime_type":"audio/mpeg","language":"deu","filename":"fossgis2019-589-deu-Pointclouds_fuer_OSM_mp3.mp3","state":"new","folder":"mp3","high_quality":false,"width":0,"height":0,"updated_at":"2019-03-14T00:15:33.903+01:00","recording_url":"https://cdn.media.ccc.de/events/fossgis/2019/mp3/fossgis2019-589-deu-Pointclouds_fuer_OSM_mp3.mp3","url":"https://api.media.ccc.de/public/recordings/33821","event_url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019"},{"size":69,"length":317,"mime_type":"video/webm","language":"deu","filename":"fossgis2019-589-deu-Pointclouds_fuer_OSM_webm-sd.webm","state":"new","folder":"webm-sd","high_quality":false,"width":720,"height":576,"updated_at":"2019-03-14T01:26:06.063+01:00","recording_url":"https://cdn.media.ccc.de/events/fossgis/2019/webm-sd/fossgis2019-589-deu-Pointclouds_fuer_OSM_webm-sd.webm","url":"https://api.media.ccc.de/public/recordings/33840","event_url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019"},{"size":122,"length":317,"mime_type":"video/webm","language":"deu","filename":"fossgis2019-589-deu-Pointclouds_fuer_OSM_webm-hd.webm","state":"new","folder":"webm-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2019-03-14T01:26:37.035+01:00","recording_url":"https://cdn.media.ccc.de/events/fossgis/2019/webm-hd/fossgis2019-589-deu-Pointclouds_fuer_OSM_webm-hd.webm","url":"https://api.media.ccc.de/public/recordings/33841","event_url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019"},{"size":2,"length":317,"mime_type":"audio/opus","language":"deu","filename":"fossgis2019-589-deu-Pointclouds_fuer_OSM_opus.opus","state":"new","folder":"opus","high_quality":false,"width":0,"height":0,"updated_at":"2019-03-14T01:27:19.121+01:00","recording_url":"https://cdn.media.ccc.de/events/fossgis/2019/opus/fossgis2019-589-deu-Pointclouds_fuer_OSM_opus.opus","url":"https://api.media.ccc.de/public/recordings/33843","event_url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019"},{"size":20,"length":317,"mime_type":"video/mp4","language":"deu","filename":"fossgis2019-589-deu-Pointclouds_fuer_OSM_sd.mp4","state":"new","folder":"h264-sd","high_quality":false,"width":720,"height":576,"updated_at":"2019-03-14T01:28:03.557+01:00","recording_url":"https://cdn.media.ccc.de/events/fossgis/2019/h264-sd/fossgis2019-589-deu-Pointclouds_fuer_OSM_sd.mp4","url":"https://api.media.ccc.de/public/recordings/33845","event_url":"https://api.media.ccc.de/public/events/2c1fd76d-c56d-5c22-9535-d79d920240b3","conference_url":"https://api.media.ccc.de/public/conferences/fossgis2019"}]}