{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T02:16:34Z","timestamp":1773368194817,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T00:00:00Z","timestamp":1773273600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Data"],"abstract":"<jats:p>Digital photoelasticity enables non-contact, full-field stress analysis through optical fringe patterns, yet its practical deployment is often constrained by experimental complexity and the limited availability of open, standardized datasets. The emergence of multi-polarizer array cameras provides polarization-resolved measurements with high information content, enabling advanced analysis strategies beyond conventional single-image approaches. This work presents a public experimental dataset composed of synchronized image sequences acquired using a polarizer array camera and a conventional RGB camera under incremental mechanical loading. The dataset comprises nine experiments, including four benchmark specimens and five bio-inspired geometries, each recorded over 720 load steps. In total, the dataset releases 25,920 polarization-resolved images and 6480 RGB images, all provided in lossless format and accompanied by experiment-specific segmentation templates. Although classical and hybrid load-stepping methods are used to demonstrate the utility of the dataset, its scope is not limited to this application. The dataset is intended as a flexible platform for exploring a wide range of photoelastic analysis techniques that leverage polarization information, while enabling direct comparison with conventional color demodulation techniques.<\/jats:p>","DOI":"10.3390\/data11030055","type":"journal-article","created":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T13:12:24Z","timestamp":1773321144000},"page":"55","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["MultiPolar: A Benchmark Dataset for Digital Photoelasticity Using a Pixelated Polarization Camera"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2254-9849","authenticated-orcid":false,"given":"Juan Camilo","family":"Hern\u00e1ndez-G\u00f3mez","sequence":"first","affiliation":[{"name":"Departamento de Ingenier\u00eda Mec\u00e1nica, Facultad de Minas, Universidad Nacional de Colombia Sede Medell\u00edn, Carrera 64C No. 63-120, Medell\u00edn 050034, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-6076-4263","authenticated-orcid":false,"given":"Juan Carlos","family":"Bri\u00f1ez-de Le\u00f3n","sequence":"additional","affiliation":[{"name":"Grupo de M\u00e1quinas Inteligentes y Reconocimiento de Patrones, Instituto Tecnol\u00f3gico Metropolitano, Carrera 31, No. 54-22, Medell\u00edn 050013, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2318-6552","authenticated-orcid":false,"given":"Mateo","family":"Rico-Garc\u00eda","sequence":"additional","affiliation":[{"name":"Facultad de Ingenier\u00eda, Instituci\u00f3n Universitaria Pascual Bravo, Calle 73 No 73A-226, Medell\u00edn 050034, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3405-1511","authenticated-orcid":false,"given":"Jos\u00e9","family":"L\u00f3pez-Prado","sequence":"additional","affiliation":[{"name":"Facultad de Ingenier\u00eda, Universidad de Sucre, Carrera 28 No 5-267, Sincelejo 70001, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9910-2896","authenticated-orcid":false,"given":"Hermes","family":"Fandi\u00f1o-Toro","sequence":"additional","affiliation":[{"name":"Grupo de M\u00e1quinas Inteligentes y Reconocimiento de Patrones, Instituto Tecnol\u00f3gico Metropolitano, Carrera 31, No. 54-22, Medell\u00edn 050013, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,3,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"172390","DOI":"10.1016\/j.ijleo.2025.172390","article-title":"Pattern recognition-based strategy applied to continuous intensity evolution for quantifying the stress field in digital photoelasticity","volume":"334","year":"2025","journal-title":"Optik"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1016\/j.optlaseng.2014.12.008","article-title":"Review of RGB photoelasticity","volume":"68","author":"Ajovalasit","year":"2015","journal-title":"Opt. 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