Hyperspectral projector evaluates imagers

摘要

To evaluate the performance of imaging devices used in cameras, researchers at the National Institute of Standards and Technology (NIST; www.nist.gov; Gaithersburg, MD, USA) are developing a Hyperspectral Image Projector (HIP). The HIP will enable scientists to project hyperspectral images into camera s sensors, simulating realistic scenes both spectrally and spatially, to test and evaluate sensor performance. The HIP system is similar to commercially available digital light processing (DLP) projection systems in which projected images are composed from a composite of grayscale images representing each of the RGB colors. In contrast to the DLP system, however, the HIP system can project composites of numerous spectra.