朴永日

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:釜庆国立大学

学位:博士

所在单位:信息与通信工程学院

学科:软件工程. 计算机应用技术. 人工智能. 信号与信息处理

办公地点:大连理工大学创新园大厦B座505室

电子邮箱:yrpiao@dlut.edu.cn

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Extended depth of field integral imaging using multi-focus fusion

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论文类型:期刊论文

发表时间:2018-03-15

发表刊物:OPTICS COMMUNICATIONS

收录刊物:SCIE、EI

卷号:411

页面范围:8-14

ISSN号:0030-4018

关键字:Synthetic aperture integral imaging; Multi-focus elemental image fusion; Depth estimation; Image registration

摘要:In this paper, we propose a new method for depth of field extension in integral imaging by realizing the image fusion method on the multi-focus elemental images. In the proposed method, a camera is translated on a 2D grid to take multi-focus elemental images by sweeping the focus plane across the scene. Simply applying an image fusion method on the elemental images holding rich parallax information does not work effectively because registration accuracy of images is the prerequisite for image fusion. To solve this problem an elemental image generalization method is proposed. The aim of this generalization process is to geometrically align the objects in all elemental images so that the correct regions of multi-focus elemental images can be exacted. The all-in focus elemental images are then generated by fusing the generalized elemental images using the block based fusion method. The experimental results demonstrate that the depth of field of synthetic aperture integral imaging system has been extended by realizing the generation method combined with the image fusion on multi-focus elemental images in synthetic aperture integral imaging system. (C) 2017 Elsevier B.V. All rights reserved.