Search Results for author: Wei-Ning Lee

Found 5 papers, 4 papers with code

Towards Real-time Training of Physics-informed Neural Networks: Applications in Ultrafast Ultrasound Blood Flow Imaging

no code implementations9 Sep 2023 Haotian Guan, Jinping Dong, Wei-Ning Lee

In this article, we first propose a novel training framework of PINN for solving Navier-Stokes equations by discretizing Navier-Stokes equations into steady state and sequentially solving steady-state Navier-Stokes equations with transfer learning.

Transfer Learning

Constrained CycleGAN for Effective Generation of Ultrasound Sector Images of Improved Spatial Resolution

1 code implementation2 Sep 2023 Xiaofei Sun, He Li, Wei-Ning Lee

In vitro phantom results demonstrate that CCycleGAN successfully generates images with improved spatial resolution as well as higher peak signal-to-noise ratio (PSNR) and structural similarity (SSIM) compared with benchmarks.

Image Generation Motion Estimation +1

Exploring Concept Contribution Spatially: Hidden Layer Interpretation with Spatial Activation Concept Vector

1 code implementation21 May 2022 Andong Wang, Wei-Ning Lee

To tackle this problem, based on TCAV, we propose Spatial Activation Concept Vector (SACV) which identifies the relevant spatial locations to the query concept while evaluating their contributions to the model prediction of the target class.

HINT: Hierarchical Neuron Concept Explainer

1 code implementation CVPR 2022 Andong Wang, Wei-Ning Lee, Xiaojuan Qi

To this end, we propose HIerarchical Neuron concepT explainer (HINT) to effectively build bidirectional associations between neurons and hierarchical concepts in a low-cost and scalable manner.

Weakly-Supervised Object Localization

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