DIGITAL HOLOGRAPHIC IMAGING TECHNIQUE WITH TWIN IMAGE ELIMINATION

A digital holographic imaging technique, includes iterative steps of: a) through back-propagation to the object coordinate of a hologram field comprising a spatial distribution of amplitude corresponding to the spatial distribution of intensity of the hologram and a spatial distribution of phase, de...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ROL, Fabian, SEDAGHAT, Zohreh, JOSSO, Quentin
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator ROL, Fabian
SEDAGHAT, Zohreh
JOSSO, Quentin
description A digital holographic imaging technique, includes iterative steps of: a) through back-propagation to the object coordinate of a hologram field comprising a spatial distribution of amplitude corresponding to the spatial distribution of intensity of the hologram and a spatial distribution of phase, determining an object field involving a spatial distribution of absorption and of phase shift of the imaged object, b) thresholding the values of the spatial distribution of absorption and of phase shift by decreasing the values to below a respective threshold, the thresholds decreasing in each iteration, c) through repropagation of the object field to the hologram coordinate, determining a modified hologram field comprising a modified spatial distribution of amplitude and a modified spatial distribution of phase, d) replacing the spatial distribution of phase of the hologram field with the modified spatial distribution of phase, the spatial distribution of phase shift and of absorption of the imaged object being those of the object field of the last iteration.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP4232874A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP4232874A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP4232874A13</originalsourceid><addsrcrecordid>eNrjZHB08XT3DHH0UfDw9_F3D3IM8PB0VvD0dXT39HNXCHF19vDzDAx1VQj3DPFQCAn39APLuSq4-nj6evo5hnj6-_EwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXABMjYyMLcxNHQ2MilAAAhi0qlg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>DIGITAL HOLOGRAPHIC IMAGING TECHNIQUE WITH TWIN IMAGE ELIMINATION</title><source>esp@cenet</source><creator>ROL, Fabian ; SEDAGHAT, Zohreh ; JOSSO, Quentin</creator><creatorcontrib>ROL, Fabian ; SEDAGHAT, Zohreh ; JOSSO, Quentin</creatorcontrib><description>A digital holographic imaging technique, includes iterative steps of: a) through back-propagation to the object coordinate of a hologram field comprising a spatial distribution of amplitude corresponding to the spatial distribution of intensity of the hologram and a spatial distribution of phase, determining an object field involving a spatial distribution of absorption and of phase shift of the imaged object, b) thresholding the values of the spatial distribution of absorption and of phase shift by decreasing the values to below a respective threshold, the thresholds decreasing in each iteration, c) through repropagation of the object field to the hologram coordinate, determining a modified hologram field comprising a modified spatial distribution of amplitude and a modified spatial distribution of phase, d) replacing the spatial distribution of phase of the hologram field with the modified spatial distribution of phase, the spatial distribution of phase shift and of absorption of the imaged object being those of the object field of the last iteration.</description><language>eng ; fre ; ger</language><subject>CINEMATOGRAPHY ; ELECTROGRAPHY ; HOLOGRAPHIC PROCESSES OR APPARATUS ; HOLOGRAPHY ; PHOTOGRAPHY ; PHYSICS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20230830&amp;DB=EPODOC&amp;CC=EP&amp;NR=4232874A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20230830&amp;DB=EPODOC&amp;CC=EP&amp;NR=4232874A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ROL, Fabian</creatorcontrib><creatorcontrib>SEDAGHAT, Zohreh</creatorcontrib><creatorcontrib>JOSSO, Quentin</creatorcontrib><title>DIGITAL HOLOGRAPHIC IMAGING TECHNIQUE WITH TWIN IMAGE ELIMINATION</title><description>A digital holographic imaging technique, includes iterative steps of: a) through back-propagation to the object coordinate of a hologram field comprising a spatial distribution of amplitude corresponding to the spatial distribution of intensity of the hologram and a spatial distribution of phase, determining an object field involving a spatial distribution of absorption and of phase shift of the imaged object, b) thresholding the values of the spatial distribution of absorption and of phase shift by decreasing the values to below a respective threshold, the thresholds decreasing in each iteration, c) through repropagation of the object field to the hologram coordinate, determining a modified hologram field comprising a modified spatial distribution of amplitude and a modified spatial distribution of phase, d) replacing the spatial distribution of phase of the hologram field with the modified spatial distribution of phase, the spatial distribution of phase shift and of absorption of the imaged object being those of the object field of the last iteration.</description><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>HOLOGRAPHIC PROCESSES OR APPARATUS</subject><subject>HOLOGRAPHY</subject><subject>PHOTOGRAPHY</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB08XT3DHH0UfDw9_F3D3IM8PB0VvD0dXT39HNXCHF19vDzDAx1VQj3DPFQCAn39APLuSq4-nj6evo5hnj6-_EwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXABMjYyMLcxNHQ2MilAAAhi0qlg</recordid><startdate>20230830</startdate><enddate>20230830</enddate><creator>ROL, Fabian</creator><creator>SEDAGHAT, Zohreh</creator><creator>JOSSO, Quentin</creator><scope>EVB</scope></search><sort><creationdate>20230830</creationdate><title>DIGITAL HOLOGRAPHIC IMAGING TECHNIQUE WITH TWIN IMAGE ELIMINATION</title><author>ROL, Fabian ; SEDAGHAT, Zohreh ; JOSSO, Quentin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4232874A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2023</creationdate><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>HOLOGRAPHIC PROCESSES OR APPARATUS</topic><topic>HOLOGRAPHY</topic><topic>PHOTOGRAPHY</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>ROL, Fabian</creatorcontrib><creatorcontrib>SEDAGHAT, Zohreh</creatorcontrib><creatorcontrib>JOSSO, Quentin</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ROL, Fabian</au><au>SEDAGHAT, Zohreh</au><au>JOSSO, Quentin</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DIGITAL HOLOGRAPHIC IMAGING TECHNIQUE WITH TWIN IMAGE ELIMINATION</title><date>2023-08-30</date><risdate>2023</risdate><abstract>A digital holographic imaging technique, includes iterative steps of: a) through back-propagation to the object coordinate of a hologram field comprising a spatial distribution of amplitude corresponding to the spatial distribution of intensity of the hologram and a spatial distribution of phase, determining an object field involving a spatial distribution of absorption and of phase shift of the imaged object, b) thresholding the values of the spatial distribution of absorption and of phase shift by decreasing the values to below a respective threshold, the thresholds decreasing in each iteration, c) through repropagation of the object field to the hologram coordinate, determining a modified hologram field comprising a modified spatial distribution of amplitude and a modified spatial distribution of phase, d) replacing the spatial distribution of phase of the hologram field with the modified spatial distribution of phase, the spatial distribution of phase shift and of absorption of the imaged object being those of the object field of the last iteration.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng ; fre ; ger
recordid cdi_epo_espacenet_EP4232874A1
source esp@cenet
subjects CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
title DIGITAL HOLOGRAPHIC IMAGING TECHNIQUE WITH TWIN IMAGE ELIMINATION
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T07%3A56%3A54IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=ROL,%20Fabian&rft.date=2023-08-30&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP4232874A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true