Application of digital single lens reflex camera in fine modeling of antique architecture
Non-metric cameras such as ordinary digital single lens reflex (DSLR) cameras and handheld cameras can be used for close-range photogrammetry to assist in fine modeling. However,due to the high similarity of the texture details of antique buildings,the obtained images lack highly accurate position and orientation system (POS) information. During aerial triangulation operations,a large number of incorrect connection points will be matched,making it difficult to successfully reconstruct the model. To address this issue,this paper proposed a method of using a DSLR camera for fine modeling of large-scale antique buildings. The aerial triangulation method of first partition and then fusion was adopted to avoid the occurrence of incorrect connection points. The experiments have proven that this method can effectively avoid the occurrence of incorrect connection points. The texture accuracy and position accuracy of fusion modeling can meet the requirements of geographic entity production and real-scene 3D.
digital single lens reflex cameratilt photographyclose-range photographyclose photographyaerial triangulation