Скачать с ютуб GCP's 101 | Ground Control Points Complete Guide | How to collect and process for Drone Mapping в хорошем качестве

GCP's 101 | Ground Control Points Complete Guide | How to collect and process for Drone Mapping

In this almost 2 hour video, I cover every aspect of collecting ground control points. This was made with the absolute beginner in mind. If you are new to drone mapping and trying to wrap your brain around how to collect GCP's then this video is for you. If you don't use GCP's then you only have a 3D Model. In order to have a drone map you must use ground control points. I show you the Emlid Reach RS units that I use and how to survey your GCP's. Then I show you how to post process the survey in EZsurv, and lastly how to export the absolute accurate coordinates for use Pix4D and Drone Deploy (or any other mapping software). Don't waist weeks and months trying to figure this out like I did! I am not a certified surveyor or engineer but I do teach you in layman's terms how do do this very overlooked part of Drone Mapping. Index: 0:00 Introl 3:13 Disclaimer 4:13 Short Thank you 7:15 Intro to Dr. Stephen Medeiros 9:35 CORS Stations 15:24 Static Mode vs Kinematic Mode 16:15 RTK and PPK 26:35 Using Single Reach RS setup 38:52 DMS (Degrees,Minutes,Seconds) vs Decimal Degrees 41:45 Post Processing Single Reach RS survey 48:04 Base/Rover setup guide 53:35 How to use Manual Coordinates 54:52 Back to Base/Rover setup guide 1:07:16 Short version post processing Base/Rover survey 1:15:27 Full version post processing Base/Rover survey 1:35:48 Exporting GCP's in CSV format for Pix4d or Drone Deploy ----------------------------------------------------- MUST Watch Videos for Newbies: Dr. Stephen Medeiros (intro to RTK and PPK)    • GPS RTK Surveying Workshop      • GNSS RTK Overview Workshop   ----------------------------------------------------- Website to Explain the difference between DDMMSS vs Decimal Degrees https://gisgeography.com/decimal-degr... ----------------------------------------------------- Article on why it is better to use PPK, not RTK for drone mapping https://www.altavian.com/knowledge-ba... ----------------------------------------------------- Great channel for Drone Mapping (GM6 Drone Mapping)    / @gm6dronemapping   ________________________________ EMLID REACH RS INFO: https://emlid.com/reachrs/ Good link (article) on various survey methods along with pros/cons http://www.gisresources.com/gps-surve... CORS Map to find how close you are to CORS station for PPK (post processing) https://www.ngs.noaa.gov/CORS_Map/ Benchmark Map / Locator to find known benchmarks in your area https://www.ngs.noaa.gov/NGSDataExplo... Good Forum post that discusses occupancy time: https://community.emlid.com/t/quick-r... Article on CORS Distance vs Quality https://www.ngs.noaa.gov/CORS/Article... ----------------------------------------------------- EZsurv INFO http://www.effigis.com/ezsurv EZSurv can post-process kinematic and static data (2 different algorithms). - To obtain cm from Kinematic you require o at least 30 minutes of un-obstructed sky (with carrier phase signal) o a base station within 10 to15 km (6-10 miles) maximum - To obtain sub-cm from static session o We usually recommend 15 minutes when the base is within 10-15 km (6 – 10 miles) o Half an hour if the base is at 20 km (12 miles) o About 1 hour with a base at 30 km (19 miles) o About 2 hours at 45 km (28 miles) (but 40-45km may be too far to get a fixed, it depends on ionosphere that day) ----------------------------------------------------- I do NOT endorse nor get commissions off any seller. I am just providing as information. Thanks Michael Lambert for these 3 links on much needed quick release adapters! I am getting these too: https://www.tigersupplies.com/Product... https://www.tigersupplies.com/Product... https://www.tigersupplies.com/Product... --------------------------------------------------------- My equipment https://www.tigersupplies.com/Product... 1 Surface Inclinometer (bubble) to put on top of Tribrach http://a.co/d/ji8aDy2 Prism Pole Extender (put on top of Tribrach) https://www.ebay.com/itm/361906391360 Prism Pole tri-pod www.ebay.com/itm/281596120184 Tacklife Laser Measure (to measure base height) http://a.co/d/cq6Jygq Tripod (many options online) http://a.co/d/eSf9N5a Tribrach with Laser Plumet (I have the black one) www.ebay.com/itm/381609768884 www.ebay.com/itm/381732818538 Tribrach Adapter www.ebay.com/itm/253958487576