Image is generated with the integration of LiDAR and photogrammetry (UAV & close range) technology and can be used to establish as-built BIM (existing BIM) for construction monitoring. Application includes but not limited to as-built footing/wall location checking, grid line checking, excavation volume checking, construction progress monitoring, environmental monitoring, life-cycle monitoring and maintenance, etc. Compared with as-built checking using traditional land surveying method, the new technology is tested 5 times faster. The product is in 3D big data format, which contains at least 100,000 times more data amount as compared to traditional data collection method. Legend: 14