Three-dimensional edge measurement control network adjustment method

• Main Authors: CHEN ZHE, DUAN TONGHU, ZOU FANGXING, HUANG HE, LIU SHUANGNAN, FAN BAIXING
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention relates to a three-dimensional edge measurement control network adjustment method, and belongs to the technical field of three-dimensional control network measurement. The method aims at minimizing the sum of difference values of a control point coordinate back calculation distance and an observation distance; the particle swarm algorithm is improved during calculation, the inertia weight of the particle swarm algorithm is adjusted, a contraction factor is constructed by using a learning factor, and the step length of particles flying to the local and global optimal positions is controlled through the contraction factor; through the improved particle swarm algorithm, the search capability can be enhanced in the initial stage of the algorithm, and in the later stage of the algorithm, particles are ensured to perform fine search around an extreme point, so that the algorithm is ensured to have relatively high probability to converge to a globally optimal solution; and meanwhile, the step length of