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by using professional image processing software. With the 3D model (consisting of about
43 000 buildings with data volume of about 320GB), we are able to navigate every corner of
the territory from different perspectives and undertake direct measurements of the buildings/
structures in 3D environment (i.e. dimensions of the buildings/structures and their physical
distance) via the system (Figure 8).
Wan Chai Tsim Sha Tsui
Figure 5 – Part of Three-Dimensional Photo-realistic Model
5-lens camera 12-lens camera
Figure 6 – Coverage Area of Three-Dimensional Figure 7 - Camera with Multi-lens Mounted to the
Photo-realistic Model Helicopter for Image Capture
Height Measurement Distance Measurement
Figure 8 – Direct Measurement of Building Dimension of Three-Dimensional Photo-realistic Model
21 Focus
