This article elaborates on the digital team of China Construction Science and Engineering Corporation,in collaboration with the digital team of Tongji Design Institute,through the use of unmanned aerial vehicle aerial photography modeling technology(Unmanned Aerial Vehicle Aerial Photography),equipped with a pan tilt camera and sensor on the unmanned aerial vehicle flight platform,to collect images and data from the historical and cultural block of Chong'an Temple Pedestrian Street using the principle of five directional(one frontal and four side views)oblique photography,To obtain high-precision physical information of object tex-ture,and generate intuitive and realistic digital 3D fine models through software processing,data fusion,and 3D modeling techniques on the on-site collected image information;The joint team simultaneously utilized site-based digital laser scanning technology to carry out three-dimensional geographic spatial mapping of historical and cultural blocks,recording three-dimensional information inside the building,including wall thickness,load-bearing column and beam positions,wall opening positions,and other information[1].The purpose of this project is to protect the digital assets of historical and cultural blocks,create three-dimensional digital information for the transformation carrier of the blocks,and ensure the activation and utilization of digital model assets,laying the foundation for the transformation and protection of old city blocks,the archiving of cultural heritage digital carriers,and further research on digital intel-ligent transformation technology of historical and cultural blocks.
关键词
无人机/倾斜摄影/三维激光扫描/智能改造/历史街区
Key words
drone tilt photography/3D laser scanning/intelligent renovation of historical blocks