{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T22:46:28Z","timestamp":1778021188939,"version":"3.51.4"},"reference-count":25,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2021,4,13]],"date-time":"2021-04-13T00:00:00Z","timestamp":1618272000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Forensic Sciences"],"published-print":{"date-parts":[[2021,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Impression evidence retained in carpet is usually recovered, if at all, in two dimensions via a vertical photograph. Here, we show that recovery is also possible via SfM photogrammetry and this gives good quality results that allow digital measurements both in the x\u2010y plane and by depth (z\u2010axis). This study focuses on recovery from polypropylene carpets which are widespread due to their resistance to wear and low cost. We show how traces can be recovered using both SfM photogrammetry and conventional photography with illumination provided via a crime scene light source. Experiments show that traces are retained for considerable time periods if left undisturbed, in excess of four weeks, but are quickly lost in under 8\u00a0hours by subsequent footfall. A simple simulation shows how the movement of an individual can be determined from carpet traces and the value of 3D recovery is illustrated via a set of experiments conducted with barefoot traces. We draw attention to the fact that 3D models allow a more statistical\u2010based approach to be taken to match bare footprints at crime scenes. SfM photogrammetry is shown to provide a useful compliment to existing techniques and therefore worthy of further experimentation and potentially operational use.<\/jats:p>","DOI":"10.1111\/1556-4029.14718","type":"journal-article","created":{"date-parts":[[2021,4,13]],"date-time":"2021-04-13T18:36:18Z","timestamp":1618338978000},"page":"1495-1505","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Recovery via SfM photogrammetry of latent footprint impressions in carpet"],"prefix":"10.1111","volume":"66","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0107-9833","authenticated-orcid":false,"given":"Hannah J.","family":"Larsen","sequence":"first","affiliation":[{"name":"Department of Life and Environmental Sciences Faculty of Science and Technology Bournemouth University Poole UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcin","family":"Budka","sequence":"additional","affiliation":[{"name":"Department of Data Science Faculty of Science and Technology Bournemouth University Poole UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew R.","family":"Bennett","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences Faculty of Science and Technology Bournemouth University Poole UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,4,13]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"National Policing Improvement Agency.Footwear marks recovery manual.http:\/\/library.college.police.uk\/docs\/appref\/NPIA\u2010(2007)\u2010Footwear\u2010Marks\u2010Recovery\u2010Manual.pdf. 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