Research on the Design of Urban Three-dimensional Reconstruction System for Smart Cities

This paper presents a design concept of an urban three-dimensional (3D) reconstruction system to meet the requirement proposed by public safety problems in intelligent cities. Goal vision, system architecture and key technologies are detailed. Also for one of the proposed key technologies, this paper provides a technique of reconstructing 3D model for the scene environment based on tilt photogrammetry, where a new storage strategy and matrix operation is put forward to perform the adjustment with a common PC. Experimental results obtained on the real photographic data confirm the effectiveness of the proposed technique.