000165088 001__ 165088 000165088 005__ 20251212165957.0 000165088 0247_ $$2doi$$a10.1145/3680528.36875 000165088 0248_ $$2sideral$$a146612 000165088 037__ $$aART-2024-146612 000165088 041__ $$aeng 000165088 100__ $$aPueyo-Ciutad, Oscar$$uUniversidad de Zaragoza 000165088 245__ $$aTime-Gated Polarization for Active Non-Line-Of-Sight Imaging 000165088 260__ $$c2024 000165088 5203_ $$aWe propose a novel method to reconstruct non-line-of-sight (NLOS) scenes that combines polarization and time-of-flight light transport measurements. Unpolarized NLOS imaging methods reconstruct objects hidden around corners by inverting time-gated indirect light paths measured at a visible relay surface, but fail to reconstruct scene features depending on their position and orientation with respect to such surface. We address this limitation (known as the missing cone problem) by capturing the polarization state of light in time-gated imaging systems at picosecond time resolution, and introducing a novel inversion method that leverages directionality information of polarized measurements to reduce directional ambiguities in the reconstruction. Our method is capable of imaging features of hidden surfaces inside the missing cone space of state-of-the-art NLOS methods, yielding fine reconstruction details even when using a fraction of measured points on the relay surface. We demonstrate the benefits of our method in both simulated and experimental scenarios. 000165088 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000165088 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000165088 700__ $$0(orcid)0000-0001-9960-8945$$aMarco, Julio$$uUniversidad de Zaragoza 000165088 700__ $$aSchertzer, Stephane 000165088 700__ $$aChristnacher, Frank 000165088 700__ $$aLaurenzis, Martin 000165088 700__ $$aGutiérrez, Diego 000165088 700__ $$0(orcid)0000-0002-0601-4820$$aRedo-Sánchez, Albert$$uUniversidad de Zaragoza 000165088 7102_ $$15007$$2570$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Lenguajes y Sistemas Inf. 000165088 773__ $$g49 (2024), [11 pp.]$$pProc. ACM SIGGRAPH$$tProceedings of ACM SIGGRAPH$$x2376-1180 000165088 8564_ $$s9087008$$uhttp://zaguan.unizar.es/record/165088/files/texto_completo.pdf$$yVersión publicada 000165088 8564_ $$s2851999$$uhttp://zaguan.unizar.es/record/165088/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000165088 909CO $$ooai:zaguan.unizar.es:165088$$particulos$$pdriver 000165088 951__ $$a2025-12-12-14:42:25 000165088 980__ $$aARTICLE