posterior sampling2 [논문 리뷰] DPnP: Provably Robust Score-Based Diffusion Posterior Sampling for Plug-and-Play Image Reconstruction [논문]Provably Robust Score-Based Diffusion Posterior Sampling for Plug-and-Play Image ReconstructionNeurIPS 2024Citations: 15https://arxiv.org/abs/2403.170420. AbstractGoal: known forward model로 부터 얻은 small number of noisy measurements를 통해 unknown image를 infernoisy measurements ⇒ noise 포함된 dataImage reconstruction task에서 resource constraints으로 인해 extremely ill-posed⇒ solution space를 regularize하는 .. 2025. 4. 2. [논문 리뷰] DPS: Diffusion posterior sampling for general noisy inverse problems [논문]Diffusion posterior sampling for general noisy inverse problemsICLR 2023Citations: 737[https://arxiv.org/abs/2209.14687]Diffusion model을 통해 inverse problems을 해결하는 가장 기초적인 methodGeneral forward model$n\sim N(0,\sigma^2I)$ 1. Approximation of the likelihood$p(y|x_t)$를 직접 계산하기 어려움 ⇒ 아래의 factorization을 통해 계산$p(x_0|x_t)$는 일반적으로 intractable ⇒ Diffu.. 2025. 4. 2. 이전 1 다음
