Depth-of-field extension in integral imaging using multi-focus elemental images

Zhang Miao; Wei Chuanzhen; Piao Yongri; Liu Jianqiao

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Depth-of-field extension in integral imaging using multi-focus elemental images

机译：使用多焦元素图像整体成像中的景深延伸

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In integral imaging, one of the main challenges is the limited depth of field (DOF), which is mainly caused by the short focal length of the microlenses. In this paper, we propose a method to extend the DOF of a synthetic aperture integral imaging (SAII) system by realizing the image fusion method on the multi-focus elemental images with different perspectives. In the proposed system, the contour-based object extraction method combined with size correction is developed to solve size inconsistency of the objects in the misaligned elemental images. The allin-focus elemental images (EIs) combining selected features of multi-focus elemental images are then obtained by the block-based image fusion method. In the last step, the reconstructed images with the extended DOF can be generated based on the all-in-focus EIs in the SAII system. Experimental results are presented to demonstrate the feasibility of the proposed system. (C) 2017 Optical Society of America

机译：在整体成像中，主要挑战之一是场景景深（DOF），主要由微透镜的短焦距引起。在本文中，我们提出了一种通过在具有不同观点的多聚焦元素图像上实现图像融合方法来扩展合成孔径积分成像（SAII）系统的DOF的方法。在所提出的系统中，开发了基于轮廓的对象提取方法与尺寸校正组合以解决未对齐的元素图像中对象的尺寸不一致。然后通过基于块的图像融合方法获得组合多聚焦元素图像的所选特征的Allin-Focus元素图像（EIS）。在最后一步中，可以基于Saii系统中的全焦距EIS生成具有扩展DOF的重建图像。提出了实验结果以证明所提出的系统的可行性。（c）2017年光学学会

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《Applied optics》 |2017年第22期|共6页
作者
Zhang Miao; Wei Chuanzhen; Piao Yongri; Liu Jianqiao;
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Dalian Univ Technol DUT RU Int Sch Informat &

Software Engn Dalian 116024 Peoples R China;

Dalian Univ Technol DUT RU Int Sch Informat &

Software Engn Dalian 116024 Peoples R China;

Dalian Univ Technol Sch Informat &

Commun Engn Dalian 116024 Peoples R China;

Dalian Univ Technol Sch Informat &

Commun Engn Dalian 116024 Peoples R China;

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Depth-of-field extension in integral imaging using multi-focus elemental images

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