Search Results for author: Wei-An Lin

Found 13 papers, 3 papers with code

Dual Manifold Adversarial Robustness: Defense against Lp and non-Lp Adversarial Attacks

no code implementations NeurIPS 2020 Wei-An Lin, Chun Pong Lau, Alexander Levine, Rama Chellappa, Soheil Feizi

Using OM-ImageNet, we first show that adversarial training in the latent space of images improves both standard accuracy and robustness to on-manifold attacks.

Adversarial Robustness

Encoding Metal Mask Projection for Metal Artifact Reduction in Computed Tomography

no code implementations2 Jan 2020 Yuanyuan Lyu, Wei-An Lin, Haofu Liao, Jing-Jing Lu, S. Kevin Zhou

Metal artifact reduction (MAR) in computed tomography (CT) is a notoriously challenging task because the artifacts are structured and non-local in the image domain.

Computed Tomography (CT) Metal Artifact Reduction

Invert and Defend: Model-based Approximate Inversion of Generative Adversarial Networks for Secure Inference

1 code implementation23 Nov 2019 Wei-An Lin, Yogesh Balaji, Pouya Samangouei, Rama Chellappa

Additionally, we show how InvGAN can be used to implement reparameterization white-box attacks on projection-based defense mechanisms.

Deep Slice Interpolation via Marginal Super-Resolution, Fusion and Refinement

no code implementations15 Aug 2019 Cheng Peng, Wei-An Lin, Haofu Liao, Rama Chellappa, S. Kevin Zhou

We propose a marginal super-resolution (MSR) approach based on 2D convolutional neural networks (CNNs) for interpolating an anisotropic brain magnetic resonance scan along the highly under-sampled direction, which is assumed to axial without loss of generality.

Semantic Segmentation Super-Resolution

ADN: Artifact Disentanglement Network for Unsupervised Metal Artifact Reduction

2 code implementations3 Aug 2019 Haofu Liao, Wei-An Lin, S. Kevin Zhou, Jiebo Luo

Current deep neural network based approaches to computed tomography (CT) metal artifact reduction (MAR) are supervised methods that rely on synthesized metal artifacts for training.

Computed Tomography (CT) Disentanglement +4

DuDoNet: Dual Domain Network for CT Metal Artifact Reduction

no code implementations CVPR 2019 Wei-An Lin, Haofu Liao, Cheng Peng, Xiaohang Sun, Jingdan Zhang, Jiebo Luo, Rama Chellappa, Shaohua Kevin Zhou

The linkage between the sigogram and image domains is a novel Radon inversion layer that allows the gradients to back-propagate from the image domain to the sinogram domain during training.

Computed Tomography (CT) Medical Diagnosis +1

Generative Mask Pyramid Network for CT/CBCT Metal Artifact Reduction with Joint Projection-Sinogram Correction

no code implementations29 Jun 2019 Haofu Liao, Wei-An Lin, Zhimin Huo, Levon Vogelsang, William J. Sehnert, S. Kevin Zhou, Jiebo Luo

A conventional approach to computed tomography (CT) or cone beam CT (CBCT) metal artifact reduction is to replace the X-ray projection data within the metal trace with synthesized data.

Computed Tomography (CT) Metal Artifact Reduction

Artifact Disentanglement Network for Unsupervised Metal Artifact Reduction

1 code implementation5 Jun 2019 Haofu Liao, Wei-An Lin, Jianbo Yuan, S. Kevin Zhou, Jiebo Luo

Extensive experiments show that our method significantly outperforms the existing unsupervised models for image-to-image translation problems, and achieves comparable performance to existing supervised models on a synthesized dataset.

Computed Tomography (CT) Disentanglement +3

Multiview 2D/3D Rigid Registration via a Point-Of-Interest Network for Tracking and Triangulation ($\text{POINT}^2$)

no code implementations10 Mar 2019 Haofu Liao, Wei-An Lin, Jiarui Zhang, Jingdan Zhang, Jiebo Luo, S. Kevin Zhou

As the POI tracker is shift-invariant, $\text{POINT}^2$ is more robust to the initial pose of the 3D pre-intervention image.

Deep Density Clustering of Unconstrained Faces

no code implementations CVPR 2018 Wei-An Lin, Jun-Cheng Chen, Carlos D. Castillo, Rama Chellappa

In this paper, we consider the problem of grouping a collection of unconstrained face images in which the number of subjects is not known.

Clustering

A Proximity-Aware Hierarchical Clustering of Faces

no code implementations14 Mar 2017 Wei-An Lin, Jun-Cheng Chen, Rama Chellappa

In this paper, we propose an unsupervised face clustering algorithm called "Proximity-Aware Hierarchical Clustering" (PAHC) that exploits the local structure of deep representations.

Clustering Face Clustering +1

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