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High-resolution spectral imaging based on coded dispersion
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DOI：10.1364/AO.52.001041.png)
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Abstract
En 中文
Since the energy of the incident light is constant, the spatial and spectral resolution can hardly be improved without scarifying the other with the spectral imaging method of a pushbroom scanner. Thus, a new spectral imaging method is proposed to obtain a high-resolution (HR) spectral image with a low-resolution detector array. The method, namely coded dispersion, by which compressive measurement is achieved, improves light collection efficiency, and then a high-quality reconstructed HR spectral image is obtained with fewer sensors. The simulation result shows that with prior knowledge of scenes available, the proposed method also offers a new way to acquire an HR spectral image while the density of detector array is constrained by battery, capacity, transmission bandwidth, and cost. (C) 2013 Optical Society of America
Keywords:
ROBUST UNCERTAINTY PRINCIPLES
RECONSTRUCTION
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