Projection method and projection system applied to building facade
A projection system and building technology, applied in the field of projection, can solve the problem that the projection system cannot meet the application requirements of grand scenes
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Embodiment 1
[0038] refer to figure 1 As shown, the embodiment of the present invention provides a projection method applied to building facades, the method may include steps:
[0039] S1. Obtain the outer contour of the target building.
[0040] Among them, such as figure 2 As shown, the specific implementation of step S1 may include:
[0041] S11. Obtain point cloud data of the target building based on a laser radar measurement method or an oblique photogrammetry method.
[0042] Specifically, the point cloud data of the target building is obtained by using the laser radar measurement method or the oblique photogrammetry method, wherein the point cloud data of the target building includes multiple measuring points on the top of the target building and the three-dimensional data of each measuring point. coordinate.
[0043] S12. Extracting the outline of the target building from the point cloud data of the target building.
[0044] Specifically, the acquired point cloud data is tran...
Embodiment 2
[0081] An embodiment of the present invention further provides a projection system, which includes a plurality of projectors arranged based on the projection method in the first embodiment above.
[0082] Wherein, a plurality of projectors are arranged in a matrix and face the exterior facade of the target building.
[0083] In this embodiment, after the arrangement of each projector is completed, the complete image to be projected can be divided according to the number of the plurality of projectors and the arrangement position to obtain the projection images projected by each of the plurality of projectors, and transmitted to each projector, and Adjust the projection angle of each projector, and perform image geometric correction and image fusion on multiple projectors through the projection control equipment until the projection images projected by multiple projectors on the facade of the target building form a complete image .
[0084] Specifically, the complete image to ...
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