Systems, and methods of use, employing distorted patterns to ascertain the shape of a surface, for road or runway profiling, or as input to control pro-active suspension systems

摘要

Provided in a preferred embodiment is an application of phase or "shadow" profilometry to determine a 3-D profile of structure instantaneously. In one application, a vehicle-mounted system captures a 3-D profile while operating normally. The system may use a digital camera, a computer for processing and storage, a broadband light source, and a device positioned between the light and structure that enables strips of light to impinge on the structure. A preferred embodiment uses a single straight edge as the device, casting a straight line shadow. In addition to profiling road surfaces, the bottom of hydraulic models have been profiled even while being disturbed with a wave generator. It may be integrated with other devices such as a pro-active suspension system for civilian, military, and construction vehicles. Further, use with tiltmeters and GPS receivers provides data useful for engineering or construction management.