A novel high-throughput spectrometer with a wide-slit is presented. In conventional spectrometers, the slit limited the light throughput. Here, the slit is replaced with a much wider one （200 um） to increase throughput. A beam splitter is utilized to construct a dual-path optics to measure both non-dispersod and dispersed light intensity which comes from the wide-slit. While the dispersed light intensity is result of the non-dispersed light convoluted spectruln of the source, the spectrmn can be acquired by solving the inverse problem of deconvolution. Experiments show that the reconstructed spectra achieved almost the same resohltion measured by traditional spectronleter, while throughput and peak signal-to-noise rat io （PSNR） are improved dramatically.
For better night-vision applications using the low-light-level visible and infrared imaging, a fusion framework for night-vision context enhancement（FNCE） method is proposed. An adaptive brightness stretching method is first proposed for enhancing the visible image. Then, a hybrid multi-scale decomposition with edge-preserving filtering is proposed to decompose the source images. Finally, the fused result is obtained via a combination of the decomposed images in three different rules. Experimental results demonstrate that the FNCE method has better performance on the details（edges）, the contrast, the sharpness, and the human visual perception. Therefore,better results for the night-vision context enhancement can be achieved.
