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Rasterized Edge Gradients: Handling Discontinuities Differentiably
May 7, 2024, 4:47 a.m. | Stanislav Pidhorskyi, Tomas Simon, Gabriel Schwartz, He Wen, Yaser Sheikh, Jason Saragih
cs.CV updates on arXiv.org arxiv.org
Abstract: Computing the gradients of a rendering process is paramount for diverse applications in computer vision and graphics. However, accurate computation of these gradients is challenging due to discontinuities and rendering approximations, particularly for surface-based representations and rasterization-based rendering. We present a novel method for computing gradients at visibility discontinuities for rasterization-based differentiable renderers. Our method elegantly simplifies the traditionally complex problem through a carefully designed approximation strategy, allowing for a straightforward, effective, and performant solution. …
abstract applications arxiv computation computer computer vision computing cs.cv cs.gr diverse diverse applications edge graphics however novel process rendering surface type visibility vision
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