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Rapid visualization of geometric information in a construction environment

A construction workspace is a dynamic environment that allows little time to obtain and update the graphical and image modeling information that is required in construction equipment operations. Comprehensive 3D models of the workspace require computationally intensive and expensive imaging processing, and usually take much longer than the ongoing construction operations permit. Rapid 3D positioning and modeling in construction can be used to plan, visualize and communicate operations before execution. They can also help to optimize equipment operations, significantly improve safety and enhance a remote operator's spatial perception of the workspace. This paper presents a rapid method, by combining human-assisted graphical workspace modeling with pre-stored CAD models and simple sensors (such as single-axis laser range-finders and remote video cameras), which can significantly reduce the modeling time while potentially increasing the modeling accuracy.