Polarization 3D imaging technology: a review

Polarization three-dimensional (3D) imaging technology has received extensive attention in recent years because of its advantages high accuracy, long detection distance, simplicity, and low cost. The ambiguity the normal obtained by polarization characteristics target’s specular or diffuse reflected light limits development 3D technology. Over past few decades, many shape from techniques have been proposed to address issues, i.e., high-precision acquisition. Meanwhile, some attempt extend experimental objects complex specific targets scenarios through a learning-based approach. Additionally, other problems related solutions are also investigated. In this paper, fundamental principles behind these technologies will be elucidated, results presented demonstrate capabilities limitations popular technologies, finally, our perspectives on remaining challenges presented.