24 October 2014 Post-digital image processing based on microlens array
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Abstract
Benefit from the attractive features such as compact volume, thin and lightweight, the imaging systems based on microlens array have become an active area of research. However, current imaging systems based on microlens array have insufficient imaging quality so that it cannot meet the practical requirements in most applications. As a result, the post-digital image processing for image reconstruction from the low-resolution sub-image sequence becomes particularly important. In general, the post-digital image processing mainly includes two parts: the accurate estimation of the motion parameters between the sub-image sequence and the reconstruction of high resolution image. In this paper, given the fact that the preprocessing of the unit image can make the edge of the reconstructed high-resolution image clearer, the low-resolution images are preprocessed before the post-digital image processing. Then, after the processing of the pixel rearrange method, a high-resolution image is obtained. From the result, we find that the edge of the reconstructed high-resolution image is clearer than that without preprocessing.
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Chaiyuan Shi, Chaiyuan Shi, Feng Xu, Feng Xu, } "Post-digital image processing based on microlens array", Proc. SPIE 9270, Optoelectronic Devices and Integration V, 92701K (24 October 2014); doi: 10.1117/12.2071651; https://doi.org/10.1117/12.2071651
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