Reproduce “Robust Low-light Scene Restoration via Illumination Transition” on OpenResearch

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About this paper

Ze Li, Feng Zhang, Xiatian Zhu, Meng Zhang, Yanghong Zhou, P. Y. Mok

RoSe, a framework developed at HKUST and HKPU, robustly synthesizes normal-light novel views from noisy, low-light multiview images by modeling illumination as a 3D transition field. It achieved a mean PSNR of 26.28, SSIM of 0.808, and LPIPS of 0.379 on the LOM dataset, outperforming existing state-of-the-art methods.

Key insights

  • Low-light scene restoration can be effectively framed as an illuminance transition estimation problem in 3D space, bypassing traditional ill-posed image decomposition.
  • Ensuring multiview consistency for illumination enhancement is crucial, achieved by making the illuminance transition field dependent solely on 3D spatial location.
  • The spatially smooth, low-rank property of illumination can be leveraged to denoise effectively without explicit noise modeling, preventing noise from being learned as scene geometry.

Summary by alphaXiv.

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