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Herit."],"published-print":{"date-parts":[[2023,6,30]]},"abstract":"<jats:p>\n            We present a practical solution to create a relightable model from small\n            <jats:bold>Multi-light Image Collections (MLICs)<\/jats:bold>\n            acquired using standard acquisition pipelines. The approach targets the difficult but very common situation in which the optical behavior of a flat, but visually and geometrically rich object, such as a painting or a bas relief, is measured using a fixed camera taking a limited number of images with a different local illumination. By exploiting information from neighboring pixels through a carefully-crafted weighting and regularization scheme, we are able to efficiently infer subtle and visually pleasing per-pixel analytical\n            <jats:bold>Bidirectional Reflectance Distribution Functions (BRDFs)<\/jats:bold>\n            representations from few per-pixel samples. The method has a low memory footprint and is easily parallelizable. We qualitatively and quantitatively evaluated it on both synthetic and real data in the scope of image-based relighting applications.\n          <\/jats:p>","DOI":"10.1145\/3593428","type":"journal-article","created":{"date-parts":[[2023,4,20]],"date-time":"2023-04-20T12:18:41Z","timestamp":1681993121000},"page":"1-31","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Exploiting Local Shape and Material Similarity for Effective SV-BRDF Reconstruction from Sparse Multi-Light Image Collections"],"prefix":"10.1145","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1786-7068","authenticated-orcid":false,"given":"Ruggero","family":"Pintus","sequence":"first","affiliation":[{"name":"CRS4, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0688-3919","authenticated-orcid":false,"given":"Moonisa","family":"Ahsan","sequence":"additional","affiliation":[{"name":"CRS4, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7318-6377","authenticated-orcid":false,"given":"Antonio","family":"Zorcolo","sequence":"additional","affiliation":[{"name":"CRS4, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0948-5289","authenticated-orcid":false,"given":"Fabio","family":"Bettio","sequence":"additional","affiliation":[{"name":"CRS4, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8611-1921","authenticated-orcid":false,"given":"Fabio","family":"Marton","sequence":"additional","affiliation":[{"name":"CRS4, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0831-2458","authenticated-orcid":false,"given":"Enrico","family":"Gobbetti","sequence":"additional","affiliation":[{"name":"CRS4, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2023,6,24]]},"reference":[{"issue":"4","key":"e_1_3_1_2_2","article-title":"Practical SVBRDF capture in the frequency domain.","volume":"32","author":"Aittala Miika","year":"2013","unstructured":"Miika Aittala, Tim Weyrich, and Jaakko Lehtinen. 2013. 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