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Visibility Enhancement by Integrating Refocusing and Direct-Global Separation with Contact Imaging

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dc.contributor.author Kuniyoshi, Fusataka en
dc.contributor.author Funatomi, Takuya en
dc.contributor.author Kubo, Hiroyuki en
dc.contributor.author Sawada, Yoshihide en
dc.contributor.author Kato, Yumiko O. en
dc.contributor.author Mukaigawa, Yasuhiro en
dc.date.accessioned 2020-07-17T09:25:50Z en
dc.date.available 2020-07-17T09:25:50Z en
dc.date.issued 2019-08-01 en
dc.identifier.issn 1573-1405 en
dc.identifier.uri http://hdl.handle.net/10061/14005 en
dc.description.abstract Contact imaging is a compact lensless microscopy technique that allows observation of living cells placed directly on a charge-coupled device sensor. However, captured images exhibit low visibility in general. This work is aimed at integrating computational refocusing and high-frequency illumination into contact imaging to enhance the visibility of the captured images. Refocusing contributes to the synthesis of shallow depth-of-field images from the light field captured by moving a point light source. The visibility may be enhanced via high-frequency illumination. Naïve integration of both techniques requires several observations. Therefore, we propose an efficient integration from reduced observations by reformulating the computational refocusing applied in contact imaging. Furthermore, we developed a prototype system that demonstrates the effectiveness of the proposed method. ja
dc.language.iso en en
dc.publisher Springer Nature en
dc.relation.isreplacedby https://link.springer.com/article/10.1007%2Fs11263-019-01173-5 en
dc.rights © The Author(s) 2019 ja
dc.subject Computational photography en
dc.subject Lensless imaging en
dc.subject Direct-global separation en
dc.subject Refocusing en
dc.title Visibility Enhancement by Integrating Refocusing and Direct-Global Separation with Contact Imaging en
dc.type.nii Journal Article en
dc.contributor.alternative 國吉, 房貴 ja
dc.contributor.alternative 舩冨, 卓哉 ja
dc.contributor.alternative 久保, 尋之 ja
dc.contributor.alternative 澤田, 好秀 ja
dc.contributor.alternative 向川, 康博 ja
dc.textversion none en
dc.identifier.jtitle International Journal of Computer Vision en
dc.identifier.spage 1162 en
dc.identifier.epage 1174 en
dc.relation.doi 10.1007/s11263-019-01173-5 en
dc.identifier.NAIST-ID 74651670 en
dc.identifier.NAIST-ID 74651274 en
dc.identifier.NAIST-ID 74650524 en


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