Non-line-of-sight imaging in the presence of scattering media using phasor fields
This work addresses a more challenging scenario for NLOS imaging, but it is incremental as it extends existing methods to scattering media without major breakthroughs.
The paper tackled the problem of non-line-of-sight imaging for scenes submerged in scattering media, showing that phasor field methods can reconstruct complex synthetic scenes in thick scattering media and perform similarly to diffuse optical tomography in real scenes.
Non-line-of-sight (NLOS) imaging aims to reconstruct partially or completely occluded scenes. Recent approaches have demonstrated high-quality reconstructions of complex scenes with arbitrary reflectance, occlusions, and significant multi-path effects. However, previous works focused on surface scattering only, which reduces the generality in more challenging scenarios such as scenes submerged in scattering media. In this work, we investigate current state-of-the-art NLOS imaging methods based on phasor fields to reconstruct scenes submerged in scattering media. We empirically analyze the capability of phasor fields in reconstructing complex synthetic scenes submerged in thick scattering media. We also apply the method to real scenes, showing that it performs similarly to recent diffuse optical tomography methods.