Dave, AkshatDave, AkshatHold-Geoffroy, YannickHašan, MilošSunkavalli, KalyanVeeraraghavan, Ashok2022-09-292022-09-292022Dave, Akshat, Dave, Akshat, Hold-Geoffroy, Yannick, et al.. "Snapshot polarimetric diffuse-specular separation." <i>Optics Express,</i> 30, no. 19 (2022) Optica Publishing Group: 34239-34255. https://doi.org/10.1364/OE.460984.https://hdl.handle.net/1911/113446We present a polarization-based approach to perform diffuse-specular separation from a single polarimetric image, acquired using a flexible, practical capture setup. Our key technical insight is that, unlike previous polarization-based separation methods that assume completely unpolarized diffuse reflectance, we use a more general polarimetric model that accounts for partially polarized diffuse reflections. We capture the scene with a polarimetric sensor and produce an initial analytical diffuse-specular separation that we further pass into a deep network trained to refine the separation. We demonstrate that our combination of analytical separation and deep network refinement produces state-of-the-art diffuse-specular separation, which enables image-based appearance editing of dynamic scenes and enhanced appearance estimation.engPublished under the terms of the Optica Open Access Publishing AgreementJournal articleoe-30-19-34239https://doi.org/10.1364/OE.460984