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Spectral multiplexing method for digital snapshot spectral imaging

机译:用于数字快照光谱成像的光谱复用方法

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摘要

We propose a spectral imaging method for piecewise "macropixel" objects, which allows a regular digital camera to be converted into a digital snapshot spectral imager by equipping the camera with only a disperser and a demultiplexing algorithm. The method exploits a "multiplexed spectrum" intensity pattern, i.e., the superposition of spectra from adjacent different image points, formed on the image sensor of the digital camera. The spatial image resolution is restricted to a macropixel level in order to acquire both spectral and spatial data (i.e., an entire spectral cube) in a single snapshot. Results of laboratory experiments with a special macropixel object image, composed of small, spatially uniform squares, provide to our knowledge a first verification of the proposed spectral imaging method.
机译:我们提出了一种针对分段“宏像素”对象的光谱成像方法,该方法允许通过将常规数码相机仅配备分散器和解复用算法,将其转换为数字快照光谱成像仪。该方法利用了“多重光谱”强度模式,即在数码相机的图像传感器上形成的来自相邻不同图像点的光谱的叠加。为了在单个快照中获取光谱和空间数据(即整个光谱立方),将空间图像分辨率限制在宏像素级别。由特殊的,由小的,空间均匀的正方形组成的宏像素对象图像进行的实验室实验结果为我们的知识提供了对所提出的光谱成像方法的首次验证。

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