The invention relates to a mobile tunnel
laser detection
data processing method. The method comprises steps of acquiring original, actual tunnel section
point cloud data; correcting tunnel section mileage data based on accumulated errors; performing tunnel point deformation analysis, convergent
diameter analysis, multi-phase data comparison and analysis and comparison and analysis of multiple measurement manners according to
point cloud on the inner wall of the tunnel, so as to acquire tunnel deformation situation; determining whether the tunnel section
point cloud is within a standard profileenclosed by limiting points by using a horizontal
ray method, so as to determine whether invasion points exist; converting section point
cloud data into a designed absolute coordinate
system, so as to restore a design line type of the tunnel; and performing
texture mapping by using an orthogonal
projection image of the inner wall of the tunnel so as to acquire a 3D model of the tunnel. In the method, tunnel deformation analysis, mileage correction,
boundary detection,
recovery of the design line type of the tunnel and 3D modelling of the tunnel can be performed according to the original, actual section, and data is processed rapidly.