Virtual white lines (VWL) for delimiting planned excavation sites of staged excavation projects
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United States of America Patent
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Jan 15, 2013
Grant Date -
Aug 12, 2010
app pub date -
Jun 1, 2009
filing date -
Feb 11, 2009
priority date (Note) -
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Abstract
Methods and apparatus for facilitating detection of a presence or an absence of at least one underground facility within a dig area. Source data representing one or more input images of a geographic area including the dig area is electronically received at a first user location, which may be remote from the dig area. The source data is processed so as to display at least a portion of the input image(s) on a display device. One or more indicators are added to the displayed input image(s), via a user input device associated with the display device, to provide at least one indication of the dig area and thereby generate a marked-up digital image. In the case of a staged excavation project, the input image, or a plurality of associated images, may include indicia of multiple dig areas corresponding to multiple stages of the staged excavation project.
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