Search Results for author: Marc L. Klasky

Found 9 papers, 3 papers with code

Score-based Diffusion Models for Bayesian Image Reconstruction

no code implementations25 May 2023 Michael T. McCann, Hyungjin Chung, Jong Chul Ye, Marc L. Klasky

This paper explores the use of score-based diffusion models for Bayesian image reconstruction.

Image Reconstruction

RED-PSM: Regularization by Denoising of Partially Separable Models for Dynamic Imaging

1 code implementation ICCV 2023 Berk Iskender, Marc L. Klasky, Yoram Bresler

In particular, in the case of dynamic tomography, only a single projection at a single view angle may be available at a time, making the problem severely ill-posed.

Dynamic Reconstruction Image Denoising +1

Material Identification From Radiographs Without Energy Resolution

no code implementations10 Mar 2023 Michael T. McCann, Elena Guardincerri, Samuel M. Gonzales, Lauren A. Misurek, Jennifer L. Schei, Marc L. Klasky

We tackle material identification without energy resolution, allowing standard X-ray systems to provide material identification information without requiring additional hardware.

Combinatorial Optimization

Solving 3D Inverse Problems using Pre-trained 2D Diffusion Models

1 code implementation CVPR 2023 Hyungjin Chung, Dohoon Ryu, Michael T. McCann, Marc L. Klasky, Jong Chul Ye

Diffusion models have emerged as the new state-of-the-art generative model with high quality samples, with intriguing properties such as mode coverage and high flexibility.

Image Reconstruction

Diffusion Posterior Sampling for General Noisy Inverse Problems

2 code implementations29 Sep 2022 Hyungjin Chung, Jeongsol Kim, Michael T. McCann, Marc L. Klasky, Jong Chul Ye

Diffusion models have been recently studied as powerful generative inverse problem solvers, owing to their high quality reconstructions and the ease of combining existing iterative solvers.

Deblurring Retrieval

Dynamic Tomography Reconstruction by Projection-Domain Separable Modeling

no code implementations21 Apr 2022 Berk Iskender, Marc L. Klasky, Yoram Bresler

In dynamic tomography the object undergoes changes while projections are being acquired sequentially in time.

Dynamic Reconstruction Object

Local Models for Scatter Estimation and Descattering in Polyenergetic X-Ray Tomography

no code implementations11 Dec 2020 Michael T. McCann, Marc L. Klasky, Jennifer L. Schei, Saiprasad Ravishankar

To estimate scatter for a new radiograph, we adaptively fit a scatter model to a small subset of the training data containing the radiographs most similar to it.

Computed Tomography (CT)

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