Star Vision Limited is experienced in aerial survey by photogrammetry using Unmanned Aerial Vehicle (UAV, drone). Using RTK method to calibrate the location of the images, the results are georeferenced 3D models, such as point clouds and textured meshes, with high geolocation accuracy at cm level. The resolution of the model is between 1 cm to 10 cm as Ground Sampling Distance (GSD).
Quality control of the aerial survey is provided by measuring the coordinates between the field measurement and the processed image, i.e. check points, by photogrammetry.
The models can be used for 3D smart city, digital twin, Building Information Modelling (BIM) production, Geographic Information System (GIS), 3D mapping, virtual reality (VR) visualization and animation.
星眺有限公司在無人機（UAV）攝影測量航空測繪方面經驗豐富。採用即時動態定位（RTK）方法校準影像位置，產生具有公分級高精度定位的地理參考三維模型，例如點雲和紋理網格。模型解析度為1公分至10公分（地面採樣距離，GSD）。
透過攝影測量法測量現場測量點與處理後影像之間的座標（即檢查點），從而實現航空測繪的品質控制。
這些模型可用於三維智慧城市、數位孿生、建築資訊模型（BIM）製作、地理資訊系統（GIS）、三維地圖繪製、虛擬實境（VR）視覺化和動畫製作。
利用航空測量技術建構的馬鞍山城區三維模型
透過航空測量獲得的道路交叉口真正射影像
透過航空測量獲得的佐敦谷城區三維模型
Survey of the Lookout tower and bridge at Tai Po Waterfront Park by UAV/Drone survey
利用無人機對大埔海濱公園瞭望塔和橋樑進行勘測
High resolution UAV model can detect the crack at the lookout tower and bridge
高解析度無人機模型可以偵測到瞭望塔和橋樑上的裂縫。
