#droneUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemit FeedbackSteemitCryptoAcademyআমার বাংলা ব্লগSteem AllianceKorea • 한국 • KR • KOAVLE 일상STEEM CN/中文Tron Fan ClubBeauty of CreativityComunidad LatinaSteem POD Team#droneTrendingHotNewPayoutsMutedgsourcetechllc (25)in #construction • 5 days agoWhat Is Drone Photogrammetry and How Is It Used to Capture Site Data for Construction Projects?A survey crew used to need days, sometimes weeks, to walk a large site, recording elevations and features point by…