Non-linear solution for 2D phase shifting
- 46 NON-LINEAR SOLUTION FOR 2D PHASE SHIFTING Disclosed is a method (100) of reconstructing a representative detailed phase image from a set of fringe pattern interferogram images of an object. The images are captured by an x ray interferometer (1399) having a crossed diffraction grating (410,430)....
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| creator | WONG, SAMPSON LARKIN, KIERAN GERARD BONE, DONALD JAMES |
| description | - 46 NON-LINEAR SOLUTION FOR 2D PHASE SHIFTING Disclosed is a method (100) of reconstructing a representative detailed phase image from a set of fringe pattern interferogram images of an object. The images are captured by an x ray interferometer (1399) having a crossed diffraction grating (410,430). A set of captured fringe pattern interferogram images from the x-ray interferometer are provided, the set comprising no more than eight captured fringe pattern interferogram images. The method determines (120,220) an estimate of an absorption parameter (a), two-dimensional amplitude modulation parameters (ms, my), and two-dimensional phase modulation parameters (fx and fy) from an appropriate closed-form solution (Examples 1 to 5) using the received set of captured fringe pattern interferogram images, and reconstructs (130) the representative detailed phase image using the parameter estimates. 6988290 1 P053251 soeci lodoed Start Capture the fringe pattern 110 interferogram images Determine an estimate of the parameters from a closed form solution Reconstruct the phase image using estimated parameters End Fig. 1 |
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The images are captured by an x ray interferometer (1399) having a crossed diffraction grating (410,430). A set of captured fringe pattern interferogram images from the x-ray interferometer are provided, the set comprising no more than eight captured fringe pattern interferogram images. The method determines (120,220) an estimate of an absorption parameter (a), two-dimensional amplitude modulation parameters (ms, my), and two-dimensional phase modulation parameters (fx and fy) from an appropriate closed-form solution (Examples 1 to 5) using the received set of captured fringe pattern interferogram images, and reconstructs (130) the representative detailed phase image using the parameter estimates. 6988290 1 P053251 soeci lodoed Start Capture the fringe pattern 110 interferogram images Determine an estimate of the parameters from a closed form solution Reconstruct the phase image using estimated parameters End Fig. 1</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2014</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=20140710&DB=EPODOC&CC=AU&NR=2012268876A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140710&DB=EPODOC&CC=AU&NR=2012268876A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WONG, SAMPSON</creatorcontrib><creatorcontrib>LARKIN, KIERAN GERARD</creatorcontrib><creatorcontrib>BONE, DONALD JAMES</creatorcontrib><title>Non-linear solution for 2D phase shifting</title><description>- 46 NON-LINEAR SOLUTION FOR 2D PHASE SHIFTING Disclosed is a method (100) of reconstructing a representative detailed phase image from a set of fringe pattern interferogram images of an object. 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| subjects | CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Non-linear solution for 2D phase shifting |
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