{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T20:12:57Z","timestamp":1778616777278,"version":"3.51.4"},"reference-count":17,"publisher":"Optica Publishing Group","issue":"23","license":[{"start":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:00:00Z","timestamp":1762473600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:00:00Z","timestamp":1762473600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2025,11,17]]},"abstract":"<jats:p>\n                    Spectral speckle correlation (SSC) enables fast, non-contact surface-roughness metrology, but object motion usually degrades its accuracy. We aim to enable measurements on moving objects and present a unified model that separates the total correlation into a wavelength-dependent term, from which the surface roughness is derived, and a kinematic term that quantifies motion blur, which affects the speckle contrast. The kinematic contribution yields a closed-form variance expression, similar to that in laser speckle contrast imaging (LSCI). The model was validated using a galvanized steel sheet with a roughness of 1.23\u2009\u00b5m\n                    <jats:italic>S<\/jats:italic>\n                    <jats:sub>a<\/jats:sub>\n                    , translated at up to 20\u2009mm\u2009s\n                    <jats:sup>\u22121<\/jats:sup>\n                    (approximately five speckles per exposure). Measured correlations agree with theory to within 1.06\u2009% on average and 4.4\u2009% at worst. Further improvements can reduce the error to 2.5\u2009% for blur values smaller than 4\u2009speckles per exposure. Scaling laws derived from the model indicate that the use of lasers with a power output of 125\u2009mW and an illumination spot diameter of 5\u2009mm can enable SSC at velocities up to 16\u2009m\u2009s\n                    <jats:sup>\u22121<\/jats:sup>\n                    , which is comparable to typical industrial band feeding rates. The results establish SSC as a viable, high-throughput alternative to conventional profilometry for continuous in-line roughness monitoring of fast-moving surfaces.\n                  <\/jats:p>","DOI":"10.1364\/oe.578858","type":"journal-article","created":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T13:00:07Z","timestamp":1761656407000},"page":"48575","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of object motion on roughness measurements using spectral speckle correlation"],"prefix":"10.1364","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-0127-082X","authenticated-orcid":true,"given":"Patrick","family":"Laux","sequence":"first","affiliation":[{"name":"Fraunhofer Institute for Physical Measurement Techniques IPM"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7378-3980","authenticated-orcid":true,"given":"Annelie","family":"Schiller","sequence":"additional","affiliation":[{"name":"Fraunhofer Institute for Physical Measurement Techniques IPM"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudia","family":"Bett","sequence":"additional","affiliation":[{"name":"University of Stuttgart"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexander","family":"Bertz","sequence":"additional","affiliation":[{"name":"Fraunhofer Institute for Physical Measurement Techniques IPM"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7712-1893","authenticated-orcid":true,"given":"Daniel","family":"Carl","sequence":"additional","affiliation":[{"name":"Fraunhofer Institute for Physical Measurement Techniques IPM"},{"name":"Albert-Ludwigs-University Freiburg"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5556-0708","authenticated-orcid":true,"given":"Stephan","family":"Reichelt","sequence":"additional","affiliation":[{"name":"University of Stuttgart"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"285","published-online":{"date-parts":[[2025,11,7]]},"reference":[{"key":"oe-33-23-48575-R1","volume-title":", vol. 9 of","author":"Goodman","year":"1984"},{"key":"oe-33-23-48575-R2","volume-title":", vol. 47 of","author":"Bitz","year":"1982"},{"key":"oe-33-23-48575-R3","doi-asserted-by":"publisher","first-page":"1297","DOI":"10.1364\/JOSAA.3.001297","type":"journal-article","volume":"3","author":"Ruffing","year":"1986","journal-title":"J. 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