Surveying method, surveying system and surveying data processing program

A surveying system, comprising a laser scanner for scanning a predetermined measurement area by projecting a pulsed laser beam, for receiving a reflected light of the pulsed laser beam, for measuring three-dimensional position data of a projecting point of the pulsed laser beam for each pulse, and for acquiring a main point cloud data of the measurement area, an auxiliary image pickup device being separated from said laser scanner and being able to acquire a supplementary image data from an arbitrary direction, and a surveying data processing device including a storage unit, an arithmetic control unit and a display unit, wherein a main point cloud data acquired by said laser scanner and a supplementary image data acquired by taking images of the range with no data acquired of the laser scanner from at least two directions by said auxiliary image pickup device are registered in said storage unit, and wherein said arithmetic control unit prepares a stereoscopic image based on said supplementary image data, acquires supplementary point cloud data on said range with no data acquired, associates the supplementary point cloud data with said main point cloud data, and supplements the range with no data acquired of the main point cloud data by the supplementary point cloud data.

A Surveying data processing program stored on a computer-readable medium for executing a step to detect a range with no data acquired in main point cloud data on a predetermined measurement area obtained by a laser scanner, a step to calculate supplementary point cloud data of the range with no data acquired based on supplementary image data of the range with no data acquired from at least two directions taken by an auxiliary image pickup device, a step to perform matching of said main point cloud data and said supplementary point cloud data, and a step to supplement the range with no data acquired of said main point cloud data by said supplementary point cloud data.