Publication:
Improving defocus blur in holographic displays

dc.contributor.coauthorItoh, Yuta
dc.contributor.coauthorAkşit, Kaan
dc.contributor.departmentDepartment of Electrical and Electronics Engineering
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.kuauthorKavaklı, Koray
dc.contributor.kuauthorÜrey, Hakan
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.date.accessioned2024-12-29T09:37:06Z
dc.date.issued2023
dc.description.abstractIn this paper we present a novel multiplane computer generated hologram calculation approach that enables artifact free and realistic-looking defocus blur for optical reconstructions in a holographic display. We introduce a new targeting method and a loss function that evaluates the focused and defocused parts of the reconstructed images. We demonstrate that our method is applicable to various standard hologram generation routines such for both iterative and non-iterative CGH calculation methods. We also demonstrate our new gradient descent-based optimization with double phase constraint combined with our targeting scheme and loss function provides the best image quality. We validate our findings for both the numerical reconstructions and optical captures that are acquired from our holographic display prototype. © 2023, John Wiley and Sons Inc. All rights reserved.
dc.description.indexedbyScopus
dc.description.issue1
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuEU
dc.description.sponsorshipYuta Itoh is supported by the JST FOREST Program Grant Number JPMJPR17J2 and JSPS KAKENHI Grant Number JP20H05958 and JP21K19788. Hakan Urey is supported by the European Innovation Council’s HORIZON-EIC-2021 TRANSITION CHALLENGES program Grant Number 101057672. Kaan Akşit is supported by the Royal Society’s RGS\R2\212229 - Research Grants 2021 Round 2 in building the hardware prototype.
dc.description.volume54
dc.identifier.doi10.1002/sdtp.16537
dc.identifier.issn0097-966X
dc.identifier.quartileN/A
dc.identifier.scopus2-s2.0-85175329389
dc.identifier.urihttps://doi.org/10.1002/sdtp.16537
dc.identifier.urihttps://hdl.handle.net/20.500.14288/22267
dc.keywordsComputer-generated holography
dc.keywordsDefocus blur
dc.keywordsEdge fringes
dc.keywordsHolographic displays
dc.keywordsMultiplane image reconstruction
dc.language.isoeng
dc.publisherJohn Wiley and Sons Inc
dc.relation.grantnoJST FOREST, (JPMJPR17J2)
dc.relation.grantnoHORIZON EUROPE European Innovation Council, EIC, (101057672, HORIZON-EIC-2021)
dc.relation.grantnoRoyal Society, (RGS\R2\212229)
dc.relation.grantnoJapan Society for the Promotion of Science, JSPS, (JP20H05958, JP21K19788)
dc.relation.ispartofDigest of Technical Papers - SID International Symposium
dc.subjectHolography
dc.subjectImage reconstruction
dc.subjectLithography
dc.titleImproving defocus blur in holographic displays
dc.typeConference Proceeding
dspace.entity.typePublication
local.contributor.kuauthorKavaklı, Koray
local.contributor.kuauthorÜrey, Hakan
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Electrical and Electronics Engineering
local.publication.orgunit2Graduate School of Sciences and Engineering
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