SupeRVol: Super-Resolution Shape and Reflectance Estimation in Inverse Volume Rendering
MCML Authors
Tarun Yenamandra
Daniel Cremers
Prof. Dr.
Director
Abstract
Tarun Yenamandra
Daniel Cremers
Prof. Dr.
Director
Abstract
We propose an end-to-end inverse rendering pipeline called SupeRVol that allows us to recover 3D shape and material parameters from a set of color images in a superresolution manner. To this end, we represent both the bidirectional reflectance distribution function’s (BRDF) parameters and the signed distance function (SDF) by multi-layer perceptrons (MLPs). In order to obtain both the surface shape and its reflectance properties, we revert to a differentiable volume renderer with a physically based illumination model that allows us to decouple reflectance and lighting. This physical model takes into account the effect of the camera’s point spread function thereby enabling a reconstruction of shape and material in a super-resolution quality. Experimental validation confirms that SupeRVol achieves state of the art performance in terms of inverse rendering quality. It generates reconstructions that are sharper than the individual input images, making this method ideally suited for 3D modeling from low-resolution imagery.
inproceedings
WACV 2024
IEEE/CVF Winter Conference on Applications of Computer Vision. Waikoloa, Hawaii, Jan 04-08, 2024.
Authors
M. Brahimi • B. Haefner • T. Yenamandra • B. Goldluecke • D. CremersLinks
DOIResearch Area
BibTeXKey: BHY+24