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Technical Paper

Close-Range Photogrammetry with Laser Scan Point Clouds

2012-04-16
2012-01-0607
Close range photogrammetry involves the determination of spatial information about objects in photographs within 300 meters of the camera's focal plane. The application of close range photogrammetry to vehicular accident reconstruction has grown exponentially in the past two decades because of its obvious advantage: it offers a cost and time effective, nonintrusive means to document the three-dimensional data pertinent to an accident. Using high resolution digital images in conjunction with control points and constraints from three-dimensional survey data has proven to be an effective way to reconstruct vehicle damage and scene evidence when the physical inspections are not viable. Advances in land surveying technology have introduced High Definition Laser Scanning (HDS) - a process that results in vast data sets of millions of points, referred to as point clouds.
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