Steel bar production quality detection method based on oblique photography point cloud data and BIM model

The invention discloses a steel bar production quality detection method based on oblique photography point cloud data and a BIM model, and the method comprises the following steps: S1, obtaining the image data of a steel bar, carrying out the aerial triangular calculation of the image data, carrying out the reconstruction of the steel bar point cloud data, and constructing a steel bar point cloud model; building a reinforcing steel bar BIM model according to the reinforcing steel bar design drawing; s2, calculating vertex data and axis data of the steel bar point cloud model; s3, performing registration of the steel bar point cloud model and the BIM model by taking the calculated vertex data and axis data as registration reference data; s4, calculating the spatial distance between each point in the registered reinforcing steel bar point cloud model and the BIM model; and S5, calculating diameter data of the steel bar point cloud model based on the calculated spatial distance, and performing steel bar quality