Search Results for author: Xue-Cheng Tai

Found 27 papers, 0 papers with code

BP-DeepONet: A new method for cuffless blood pressure estimation using the physcis-informed DeepONet

no code implementations29 Feb 2024 Lingfeng li, Xue-Cheng Tai, Raymond Chan

Unlike previous methods, our approach requires the predicted ABP waveforms to satisfy the Navier-Stokes equation with a time-periodic condition and a Windkessel boundary condition.

Blood pressure estimation Meta-Learning

Double-well Net for Image Segmentation

no code implementations31 Dec 2023 Hao liu, Jun Liu, Raymond Chan, Xue-Cheng Tai

In this study, our goal is to integrate classical mathematical models with deep neural networks by introducing two novel deep neural network models for image segmentation known as Double-well Nets.

Image Segmentation Segmentation +1

A Fast Minimization Algorithm for the Euler Elastica Model Based on a Bilinear Decomposition

no code implementations25 Aug 2023 Zhifang Liu, Baochen Sun, Xue-Cheng Tai, Qi Wang, Huibin Chang

A host of numerical experiments are conducted to show that the new algorithm produces good results with much-improved efficiency compared to other state-of-the-art algorithms for the EE model.

Connections between Operator-splitting Methods and Deep Neural Networks with Applications in Image Segmentation

no code implementations18 Jul 2023 Hao liu, Xue-Cheng Tai, Raymond Chan

In this paper, we give an algorithmic explanation for deep neural networks, especially in their connections with operator splitting.

Image Segmentation Semantic Segmentation

Elastica Models for Color Image Regularization

no code implementations18 Mar 2022 Hao liu, Xue-Cheng Tai, Ron Kimmel, Roland Glowinski

Recently, the authors proposed a color elastica model, which minimizes both the surface area and elastica of the image manifold.

IDmUNet: A new image decomposition induced network for sparse feature segmentation

no code implementations5 Mar 2022 Yumeng Ren, Yiming Gao, Chunlin Wu, Xue-Cheng Tai

Because of the sparsity prior and deep unfolding method in the structure design, this IDmUNet combines the advantages of mathematical modeling and data-driven approaches.

Image Segmentation Retinal Vessel Segmentation +2

An Operator-Splitting Method for the Gaussian Curvature Regularization Model with Applications to Surface Smoothing and Imaging

no code implementations4 Aug 2021 Hao liu, Xue-Cheng Tai, Roland Glowinski

In our method, we decouple the full nonlinearity of Gaussian curvature from differential operators by introducing two matrix- and vector-valued functions.

Image Denoising

An Elastica Geodesic Approach With Convexity Shape Prior

no code implementations ICCV 2021 Da Chen, Laurent D. Cohen, Jean-Marie Mirebeau, Xue-Cheng Tai

The minimal geodesic models based on the Eikonal equations are capable of finding suitable solutions in various image segmentation scenarios.

Image Segmentation Segmentation +1

Sparse-data based 3D surface reconstruction with vector matching

no code implementations28 Sep 2020 Bin Wu, Xue-Cheng Tai, Talal Rahman

Three dimensional surface reconstruction based on two dimensional sparse information in the form of only a small number of level lines of the surface with moderately complex structures, containing both structured and unstructured geometries, is considered in this paper.

Surface Reconstruction

Iterative regularization algorithms for image denoising with the TV-Stokes model

no code implementations24 Sep 2020 Bin Wu, Leszek Marcinkowski, Xue-Cheng Tai, Talal Rahman

We propose a set of iterative regularization algorithms for the TV-Stokes model to restore images from noisy images with Gaussian noise.

Image Denoising Image Reconstruction

Multidimensional TV-Stokes for image processing

no code implementations24 Sep 2020 Bin Wu, Xue-Cheng Tai, Talal Rahman

A complete multidimential TV-Stokes model is proposed based on smoothing a gradient field in the first step and reconstruction of the multidimensional image from the gradient field.

Denoising

A Color Elastica Model for Vector-Valued Image Regularization

no code implementations19 Aug 2020 Hao Liu, Xue-Cheng Tai, Ron Kimmel, Roland Glowinski

Here, we introduce an addition to the Polyakov action for color images that minimizes the color manifold curvature.

A level set representation method for N-dimensional convex shape and applications

no code implementations21 Mar 2020 Lingfeng li, Shousheng Luo, Xue-Cheng Tai, Jiang Yang

We apply this new method to two applications: object segmentation with convexity prior and convex hull problem (especially with outliers).

Object Semantic Segmentation

Deep Convolutional Neural Networks with Spatial Regularization, Volume and Star-shape Priori for Image Segmentation

no code implementations10 Feb 2020 Jun Liu, Xiangyue Wang, Xue-Cheng Tai

The novelty of our method is to interpret the softmax activation function as a dual variable in a variational problem, and thus many spatial priors can be imposed in the dual space.

Image Segmentation Segmentation +1

Convex hull algorithms based on some variational models

no code implementations9 Aug 2019 Lingfeng Li, Shousheng Luo, Xue-Cheng Tai, Jiang Yang

In this model, the convex hull is characterized by the zero sublevel-set of a convex level set function, which is non-positive at every given point.

Convexity Shape Prior for Level Set based Image Segmentation Method

no code implementations22 May 2018 Shi Yan, Xue-Cheng Tai, Jun Liu, Hai-yang Huang

We apply our method to region and edge based level set segmentation models including Chan-Vese (CV) model with guarantee that the segmented region will be convex.

Image Segmentation Segmentation +1

Simplified Energy Landscape for Modularity Using Total Variation

no code implementations28 Jul 2017 Zachary Boyd, Egil Bae, Xue-Cheng Tai, Andrea L. Bertozzi

We show that modularity optimization is equivalent to minimizing a convex TV-based functional over a discrete domain, again, assuming the number of communities is known.

Math

New region force for variational models in image segmentation and high dimensional data clustering

no code implementations26 Apr 2017 Ke Wei, Ke Yin, Xue-Cheng Tai, Tony F. Chan

We propose an effective framework for multi-phase image segmentation and semi-supervised data clustering by introducing a novel region force term into the Potts model.

Clustering Image Segmentation +2

Efficient 3D Endfiring TRUS Prostate Segmentation with Globally Optimized Rotational Symmetry

no code implementations CVPR 2013 Jing Yuan, Wu Qiu, Eranga Ukwatta, Martin Rajchl, Xue-Cheng Tai, Aaron Fenster

Segmenting 3D endfiring transrectal ultrasound (TRUS) prostate images efficiently and accurately is of utmost importance for the planning and guiding 3D TRUS guided prostate biopsy.

Combinatorial Optimization

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