Search Results for author: Matthew Tivnan

Found 4 papers, 1 papers with code

Conditional Score-Based Diffusion Model for Cortical Thickness Trajectory Prediction

no code implementations11 Mar 2024 Qing Xiao, Siyeop Yoon, Hui Ren, Matthew Tivnan, Lichao Sun, Quanzheng Li, Tianming Liu, Yu Zhang, Xiang Li

Alzheimer's Disease (AD) is a neurodegenerative condition characterized by diverse progression rates among individuals, with changes in cortical thickness (CTh) closely linked to its progression.

Trajectory Prediction

Implicit Image-to-Image Schrodinger Bridge for CT Super-Resolution and Denoising

no code implementations10 Mar 2024 Yuang Wang, Siyeop Yoon, Pengfei Jin, Matthew Tivnan, Zhennong Chen, Rui Hu, Li Zhang, Zhiqiang Chen, Quanzheng Li, Dufan Wu

As a promising alternative, the Image-to-Image Schr\"odinger Bridge (I2SB) initializes the generative process from corrupted images and integrates training techniques from conditional diffusion models.

Denoising Image Restoration +1

Diffusion Posterior Sampling for Nonlinear CT Reconstruction

no code implementations3 Dec 2023 Shudong Li, Matthew Tivnan, Yuan Shen, J. Webster Stayman

This technique is attractive since it permits a one-time, unsupervised training of a CT prior; which can then be incorporated with an arbitrary data model.

Image Generation Image Reconstruction

How to Trust Your Diffusion Model: A Convex Optimization Approach to Conformal Risk Control

1 code implementation7 Feb 2023 Jacopo Teneggi, Matthew Tivnan, J. Webster Stayman, Jeremias Sulam

Score-based generative modeling, informally referred to as diffusion models, continue to grow in popularity across several important domains and tasks.

Computed Tomography (CT) Conformal Prediction +1

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