NASA's Reflection-Reducing Imaging System for Machine Vision Applications

NASA Langley researchers have developed a compact, cost-effective imaging system using a co-linear, high-intensity LED illumination unit to minimize window reflections for background-oriented schlieren (BOS) and machine vision measurements. The imaging system tested in NASA wind tunnels can reduce or eliminate shadows that occur when using many existing BOS and photogrammetric measurement systems; these shadows occur in existing systems for a variety of reasons, including the severe back-reflections from wind tunnel viewing port windows and variations in the refractive index of the imaged volume. Due to its compact size, the system can easily fit in the space behind a typical wind tunnels view port. As a cost-effective, compact imaging system, NASAs technology could be deployed for use in BOS, Tomo BOS, photogrammetric, and general machine vision applications.

For more information on this technology, please visit:
https://technology.nasa.gov/patent/LA...

The National Aeronautics and Space Administration solicits interest from companies interested in obtaining license rights to commercialize, manufacture and market this technology. For more information, please visit: http://technology.nasa.gov

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