2 results about "Planar model" patented technology

This invention discloses a slope surface displacement inspection and monitoring system and method based on grouped planar target points and robust fusion of multiple images. The system includes: a target point layout module, a planar coordinate modeling module, an image acquisition and processing module, a target point identification module, a homography solution module, a matrix optimization module, a displacement inversion module, a fusion module, an early warning module, and a data management module. This invention uses uniquely coded target points, which significantly improves the reliability of automatic identification and cross-time-series matching of slope monitoring points. By grouping slope target points according to local coplanar features, this invention avoids errors caused by establishing a unified planar model for complex slopes as a whole, thus improving the accuracy of geometric modeling.

This invention discloses a method and system for path planning in 3D surface printing. The method includes: surface scanning, using a 3D laser scanner to scan the target surface; point cloud data preprocessing, preprocessing and optimizing the original point cloud data; model design, designing the model of the product to be printed and exporting it as point cloud data as the base point cloud data for registration; surface mapping, registering the base point cloud data of the model to be printed with the target point cloud data of the scanned surface model, mapping the planar model onto the surface; Z-axis coordinate change calculation, calculating the change of the Z-axis coordinate with the surface height during printing on the surface; and path planning, performing path planning processing on the point cloud data obtained after surface mapping, sorting the coordinates according to priority based on the required path to obtain the coordinates of each point on the complete printing path. This invention can improve the accuracy and detail of 3D printing.