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Engineers at Duke University have developed a method for extracting a color image from a single exposure of light scattered through a mostly opaque material. The new approach overcomes the limitations of conventional optical memory effect techniques in the realm of color, by using spectral coding and compressed sensing to achieve snapshot color imaging through scattering media.
The Duke team realized multispectral imaging of objects through scattering media using only a single speckle measurement with a monochrome camera. The researchers used a coded aperture in combination with a wavelength-dependent element, such as a prism, to encode the spectral content within the low-contrast, multiplexed speckle signal. Then they used a…READ MORE