PMCAD: Photogrammetric‐Based CAD System for Traffic Accident Mapping
Publication: Journal of Surveying Engineering
Volume 115, Issue 3
Abstract
A low‐cost, digital, three‐dimensional photogrammetric mapping system has been successfully developed and implemented on a microCAD system. Code‐named PMCAD, the system allows both two‐dimensional line maps and three‐dimensional wire‐frame or solid models to be captured into CAD databases from nonmetric cameras. The mathematical algorithm is modeled on the Direct Linear Transformation (DLT) and implemented on a microcomputer. Preprocessor and postprocessor software developed to work in cooperation with the DLT algorithm, allows digital data to flow efficiently from the digitizer into a CAD system for 3D graphics display.
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Information & Authors
Information
Published In
Journal of Surveying Engineering
Volume 115 • Issue 3 • August 1989
Pages: 330 - 336
Copyright
Copyright © 1989 ASCE.
History
Published online: Aug 1, 1989
Published in print: Aug 1989
Authors
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