Coordinate geometry augmented reality process

摘要

Embodiments of the invention include a method, a system, and a mobile device that incorporate augmented reality technology into land surveying, 3D laser scanning, and digital modeling processes. By incorporating the augmented reality technology, the mobile device can display an augmented reality image comprising a real view of a physical structure in the real environment and a 3D digital model of an unbuilt design element overlaid on top of the physical structure at its intended tie-in location. In an embodiment, a marker can be placed at predetermined set of coordinates at or around the tie-in location, determined by surveying equipment, on that the 3D digital model of the unbuilt design element can be visualized in a geometrically correct orientation with respect to the physical structure. Embodiments of the present invention can also be applied to a scaled down 3D printed object representing the physical structure if visiting the project site is not possible.

主权项

1. A method of providing coordinate geometry augmented reality for visualizing a 3D digital model in a real environment, the method comprising:
surveying the real environment with a physical structure, with targets positioned at control points on or around the physical structure, to determine coordinates of the control points in relation to a real-world coordinate system; scanning, with a 3D laser scanner, the physical structure and the targets positioned at the control points in the real environment to generate point cloud data having a number of scan points associated with the physical structure, wherein each scan point is georeferenceable on the real-world coordinate system based on the determined coordinates of the targets positioned at the control points; generating a physical structure digital model based on the point cloud data and the determined coordinates of the targets at the control points wherein the physical structure digital model is embedded with coordinate data in relation to the real-world coordinate system; incorporating a digital model representing an unbuilt element into the physical structure digital model at a desired tie-in location, thereby embedding the supplemental digital model with the coordinate data in relation to the real-world coordinate system; selecting at least a portion of the digital model of the unbuilt element to be used as a supplemental digital model for rendering augmented reality visualization; selecting a marker location in relation to the supplemental digital model and extracting coordinates associated with the marker location; associating the supplemental digital model with a selected digital marker at the marker location so that the supplemental digital model is configured to be sized, positioned, and oriented with respect to the digital marker according to relation data; storing a data file comprising the supplemental digital model and the relation data in data storage, wherein the data file is retrievable from the data storage when a physical marker, which corresponds to the selected digital marker, is detected in the real environment by a mobile device; and surveying the real environment to determine the extracted coordinates of the marker location in the real environment.