Perroni-Scharf, Maxine, Kalyan Sunkavalli, Jonathan Eisenmann, and Yannick Hold-Geoffroy. "Material Swapping for 3D Scenes Using a Learnt Material Similarity Measure." In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition, pp. 2034-2043. 2022. Women in Computer Vision Workshop, Oral Presentation.
We present a method for augmenting photo-realistic 3D scene assets by automatically recognizing, matching, and swapping their materials. Our method proposes a material matching pipeline for the efficient replacement of unknown materials with perceptually similar PBR materials from a database, enabling the quick creation of many variations of a given 3D synthetic scene. At the heart of this method is a novel material similarity feature that is learnt, in conjunction with optimal lighting conditions, by fine-tuning a deep neural network on a material classification task using our proposed dataset. Our evaluation demonstrates that lighting optimization improves CNN-based texture feature extraction methods and better estimates material properties. We conduct a series of experiments showing our method's ability to augment photo-realistic indoor scenes using both standard and procedurally generated PBR materials.