Scanning image sub-pixel registration method based on spatial heterodyne interference
The invention discloses a scanning image sub-pixel registration method based on spatial heterodyne interference. The method comprises the steps that 1, a preprocessed spatial heterodyne scanning interference image is adopted; 2, performing fast Fourier transform on the images to obtain corresponding...
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| creator | LI ZHAOLIN ZHANG WENTAO YE SONG LI SHU ZHANG ZIYANG CHEN NIYAN WANG XINQIANG WANG FANGYUAN |
| description | The invention discloses a scanning image sub-pixel registration method based on spatial heterodyne interference. The method comprises the steps that 1, a preprocessed spatial heterodyne scanning interference image is adopted; 2, performing fast Fourier transform on the images to obtain corresponding amplitude spectrums; 3, defining a cross-power spectrum according to the Fourier translation theorem in combination with the amplitude spectrum; 4, inverse Fourier transform is carried out on the cross-power spectrum; 5, acquiring the peak position of the function after inverse transformation as the translation amount between the reference image and the image to be registered; and 6, performing registration by adopting a phase correlation algorithm according to the translation amount. By adopting the method disclosed by the invention, the problem of sub-pixel registration of spatial heterodyne scanning imaging interference image registration can be solved, and the registration precision of interference data is eff |
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The method comprises the steps that 1, a preprocessed spatial heterodyne scanning interference image is adopted; 2, performing fast Fourier transform on the images to obtain corresponding amplitude spectrums; 3, defining a cross-power spectrum according to the Fourier translation theorem in combination with the amplitude spectrum; 4, inverse Fourier transform is carried out on the cross-power spectrum; 5, acquiring the peak position of the function after inverse transformation as the translation amount between the reference image and the image to be registered; and 6, performing registration by adopting a phase correlation algorithm according to the translation amount. By adopting the method disclosed by the invention, the problem of sub-pixel registration of spatial heterodyne scanning imaging interference image registration can be solved, and the registration precision of interference data is eff</description><language>chi ; eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; PHYSICS</subject><creationdate>2022</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&date=20221018&DB=EPODOC&CC=CN&NR=115205357A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221018&DB=EPODOC&CC=CN&NR=115205357A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI ZHAOLIN</creatorcontrib><creatorcontrib>ZHANG WENTAO</creatorcontrib><creatorcontrib>YE SONG</creatorcontrib><creatorcontrib>LI SHU</creatorcontrib><creatorcontrib>ZHANG ZIYANG</creatorcontrib><creatorcontrib>CHEN NIYAN</creatorcontrib><creatorcontrib>WANG XINQIANG</creatorcontrib><creatorcontrib>WANG FANGYUAN</creatorcontrib><title>Scanning image sub-pixel registration method based on spatial heterodyne interference</title><description>The invention discloses a scanning image sub-pixel registration method based on spatial heterodyne interference. The method comprises the steps that 1, a preprocessed spatial heterodyne scanning interference image is adopted; 2, performing fast Fourier transform on the images to obtain corresponding amplitude spectrums; 3, defining a cross-power spectrum according to the Fourier translation theorem in combination with the amplitude spectrum; 4, inverse Fourier transform is carried out on the cross-power spectrum; 5, acquiring the peak position of the function after inverse transformation as the translation amount between the reference image and the image to be registered; and 6, performing registration by adopting a phase correlation algorithm according to the translation amount. By adopting the method disclosed by the invention, the problem of sub-pixel registration of spatial heterodyne scanning imaging interference image registration can be solved, and the registration precision of interference data is eff</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNi0EKwjAURLNxIeodvgcoWEtwXYriyo26LmkzTQPpT0gi6O3NwgO4mnnDm7V43kfFbNmQXZQBpddQBfuGowhjU44qW8-0IM9e06ASNBVOoezK0YyM6PWHQZZLnRDBI7ZiNSmXsPvlRuwv50d3rRB8j3Iewch9d6treTzIRp7a5h_nCxiqObo</recordid><startdate>20221018</startdate><enddate>20221018</enddate><creator>LI ZHAOLIN</creator><creator>ZHANG WENTAO</creator><creator>YE SONG</creator><creator>LI SHU</creator><creator>ZHANG ZIYANG</creator><creator>CHEN NIYAN</creator><creator>WANG XINQIANG</creator><creator>WANG FANGYUAN</creator><scope>EVB</scope></search><sort><creationdate>20221018</creationdate><title>Scanning image sub-pixel registration method based on spatial heterodyne interference</title><author>LI ZHAOLIN ; ZHANG WENTAO ; YE SONG ; LI SHU ; ZHANG ZIYANG ; CHEN NIYAN ; WANG XINQIANG ; WANG FANGYUAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN115205357A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>LI ZHAOLIN</creatorcontrib><creatorcontrib>ZHANG WENTAO</creatorcontrib><creatorcontrib>YE SONG</creatorcontrib><creatorcontrib>LI SHU</creatorcontrib><creatorcontrib>ZHANG ZIYANG</creatorcontrib><creatorcontrib>CHEN NIYAN</creatorcontrib><creatorcontrib>WANG XINQIANG</creatorcontrib><creatorcontrib>WANG FANGYUAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI ZHAOLIN</au><au>ZHANG WENTAO</au><au>YE SONG</au><au>LI SHU</au><au>ZHANG ZIYANG</au><au>CHEN NIYAN</au><au>WANG XINQIANG</au><au>WANG FANGYUAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Scanning image sub-pixel registration method based on spatial heterodyne interference</title><date>2022-10-18</date><risdate>2022</risdate><abstract>The invention discloses a scanning image sub-pixel registration method based on spatial heterodyne interference. The method comprises the steps that 1, a preprocessed spatial heterodyne scanning interference image is adopted; 2, performing fast Fourier transform on the images to obtain corresponding amplitude spectrums; 3, defining a cross-power spectrum according to the Fourier translation theorem in combination with the amplitude spectrum; 4, inverse Fourier transform is carried out on the cross-power spectrum; 5, acquiring the peak position of the function after inverse transformation as the translation amount between the reference image and the image to be registered; and 6, performing registration by adopting a phase correlation algorithm according to the translation amount. By adopting the method disclosed by the invention, the problem of sub-pixel registration of spatial heterodyne scanning imaging interference image registration can be solved, and the registration precision of interference data is eff</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS |
| title | Scanning image sub-pixel registration method based on spatial heterodyne interference |
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