Computer Science > Computer Vision and Pattern Recognition
arXiv:2406.19398 (cs)
[Submitted on 4 May 2024 (v1), last revised 8 Jul 2024 (this version, v3)]
Title:Woven Fabric Capture with a Reflection-Transmission Photo Pair
View a PDF of the paper titled Woven Fabric Capture with a Reflection-Transmission Photo Pair, by Yingjie Tang and 4 other authors
View PDFHTML (experimental)Abstract:Digitizing woven fabrics would be valuable for many applications, from digital humans to interior design. Previous work introduces a lightweight woven fabric acquisition approach by capturing a single reflection image and estimating the fabric parameters with a differentiable geometric and shading model. The renderings of the estimated fabric parameters can closely match the photo; however, the captured reflection image is insufficient to fully characterize the fabric sample reflectance. For instance, fabrics with different thicknesses might have similar reflection images but lead to significantly different transmission. We propose to recover the woven fabric parameters from two captured images: reflection and transmission. At the core of our method is a differentiable bidirectional scattering distribution function (BSDF) model, handling reflection and transmission, including single and multiple scattering. We propose a two-layer model, where the single scattering uses an SGGX phase function as in previous work, and multiple scattering uses a new azimuthally-invariant microflake definition, which we term ASGGX. This new fabric BSDF model closely matches real woven fabrics in both reflection and transmission. We use a simple setup for capturing reflection and transmission photos with a cell phone camera and two point lights, and estimate the fabric parameters via a lightweight network, together with a differentiable optimization. We also model the out-of-focus effects explicitly with a simple solution to match the thin-lens camera better. As a result, the renderings of the estimated parameters can agree with the input images on both reflection and transmission for the first time. The code for this paper is atthis https URL.
| Comments: | 10 pages, 16 figures (in the main paper). Accepted by SIGGRAPH 2024 conference |
| Subjects: | Computer Vision and Pattern Recognition (cs.CV); Graphics (cs.GR) |
| Cite as: | arXiv:2406.19398 [cs.CV] |
| (orarXiv:2406.19398v3 [cs.CV] for this version) | |
| https://doi.org/10.48550/arXiv.2406.19398 arXiv-issued DOI via DataCite |
Submission history
From: Yingjie Tang [view email][v1] Sat, 4 May 2024 14:28:09 UTC (46,314 KB)
[v2] Mon, 1 Jul 2024 11:38:19 UTC (46,313 KB)
[v3] Mon, 8 Jul 2024 03:26:56 UTC (46,313 KB)
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View a PDF of the paper titled Woven Fabric Capture with a Reflection-Transmission Photo Pair, by Yingjie Tang and 4 other authors
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