Search Results for author: An Wang

Found 23 papers, 16 papers with code

Adapting SAM for Surgical Instrument Tracking and Segmentation in Endoscopic Submucosal Dissection Videos

no code implementations16 Apr 2024 Jieming Yu, Long Bai, Guankun Wang, An Wang, Xiaoxiao Yang, Huxin Gao, Hongliang Ren

Specifically, with a tiny subset of frames for segmentation, we ensure accurate segmentation across the entire surgical video.

Segmentation

An Efficient MLP-based Point-guided Segmentation Network for Ore Images with Ambiguous Boundary

1 code implementation27 Feb 2024 Guodong Sun, Yuting Peng, Le Cheng, Mengya Xu, An Wang, Bo Wu, Hongliang Ren, Yang Zhang

The precise segmentation of ore images is critical to the successful execution of the beneficiation process.

OSSAR: Towards Open-Set Surgical Activity Recognition in Robot-assisted Surgery

1 code implementation10 Feb 2024 Long Bai, Guankun Wang, Jie Wang, Xiaoxiao Yang, Huxin Gao, Xin Liang, An Wang, Mobarakol Islam, Hongliang Ren

Existing algorithms dedicated to surgical activity recognition predominantly cater to pre-defined closed-set paradigms, ignoring the challenges of real-world open-set scenarios.

Activity Recognition

Learning-Based Difficulty Calibration for Enhanced Membership Inference Attacks

1 code implementation10 Jan 2024 Haonan Shi, Tu Ouyang, An Wang

The experiment results show that LDC-MIA can improve TPR at low FPR by up to 4x compared to the other difficulty calibration based MIAs.

Privacy Preserving

Spatial-wise Dynamic Distillation for MLP-like Efficient Visual Fault Detection of Freight Trains

1 code implementation10 Dec 2023 Yang Zhang, Huilin Pan, Mingying Li, An Wang, Yang Zhou, Hongliang Ren

Existing modeling shortcomings of spatial invariance and pooling layers in conventional CNNs often ignore the neglect of crucial global information, resulting in error localization for fault objection tasks of freight trains.

Fault Detection object-detection +1

SAM Meets Robotic Surgery: An Empirical Study on Generalization, Robustness and Adaptation

no code implementations14 Aug 2023 An Wang, Mobarakol Islam, Mengya Xu, Yang Zhang, Hongliang Ren

Our extensive evaluation results reveal that although SAM shows remarkable zero-shot generalization ability with bounding box prompts, it struggles to segment the whole instrument with point-based prompts and unprompted settings.

Semantic Segmentation Zero-shot Generalization

Landmark Detection using Transformer Toward Robot-assisted Nasal Airway Intubation

1 code implementation5 Aug 2023 Tianhang Liu, Hechen Li, Long Bai, Yanan Wu, An Wang, Mobarakol Islam, Hongliang Ren

This paper proposes a transformer-based landmark detection solution with deformable DeTR and the semantic-aligned-matching module for detecting landmarks in robot-assisted intubation.

Rectifying Noisy Labels with Sequential Prior: Multi-Scale Temporal Feature Affinity Learning for Robust Video Segmentation

1 code implementation12 Jul 2023 Beilei Cui, Minqing Zhang, Mengya Xu, An Wang, Wu Yuan, Hongliang Ren

Therefore, Temporal Feature Affinity Learning (TFAL) is devised to indicate possible noisy labels by evaluating the affinity between pixels in two adjacent frames.

Image Segmentation Medical Image Segmentation +4

LLCaps: Learning to Illuminate Low-Light Capsule Endoscopy with Curved Wavelet Attention and Reverse Diffusion

1 code implementation5 Jul 2023 Long Bai, Tong Chen, Yanan Wu, An Wang, Mobarakol Islam, Hongliang Ren

Given the exuberant development of the denoising diffusion probabilistic model (DDPM) in computer vision, we introduce a WCE LLIE framework based on the multi-scale convolutional neural network (CNN) and reverse diffusion process.

Denoising Low-Light Image Enhancement

Generalizing Surgical Instruments Segmentation to Unseen Domains with One-to-Many Synthesis

1 code implementation28 Jun 2023 An Wang, Mobarakol Islam, Mengya Xu, Hongliang Ren

In this work, we mitigate data-related issues by efficiently leveraging minimal source images to generate synthetic surgical instrument segmentation datasets and achieve outstanding generalization performance on unseen real domains.

Scene Understanding

Curriculum-Based Augmented Fourier Domain Adaptation for Robust Medical Image Segmentation

1 code implementation6 Jun 2023 An Wang, Mobarakol Islam, Mengya Xu, Hongliang Ren

Accurate and robust medical image segmentation is fundamental and crucial for enhancing the autonomy of computer-aided diagnosis and intervention systems.

Domain Adaptation Image Segmentation +4

S$^2$ME: Spatial-Spectral Mutual Teaching and Ensemble Learning for Scribble-supervised Polyp Segmentation

1 code implementation1 Jun 2023 An Wang, Mengya Xu, Yang Zhang, Mobarakol Islam, Hongliang Ren

Furthermore, to produce reliable mixed pseudo labels, which enhance the effectiveness of ensemble learning, we introduce a novel adaptive pixel-wise fusion technique based on the entropy guidance from the spatial and spectral branches.

Ensemble Learning Image Segmentation +4

SAM Meets Robotic Surgery: An Empirical Study in Robustness Perspective

no code implementations28 Apr 2023 An Wang, Mobarakol Islam, Mengya Xu, Yang Zhang, Hongliang Ren

In this empirical study, we investigate the robustness and zero-shot generalizability of the SAM in the domain of robotic surgery in various settings of (i) prompted vs. unprompted; (ii) bounding box vs. points-based prompt; (iii) generalization under corruptions and perturbations with five severity levels; and (iv) state-of-the-art supervised model vs. SAM.

Semantic Segmentation Zero-shot Generalization

DREEAM: Guiding Attention with Evidence for Improving Document-Level Relation Extraction

1 code implementation17 Feb 2023 Youmi Ma, An Wang, Naoaki Okazaki

First, we propose DREEAM, a memory-efficient approach that adopts evidence information as the supervisory signal, thereby guiding the attention modules of the DocRE system to assign high weights to evidence.

Document-level Relation Extraction Relation

Rethinking Surgical Instrument Segmentation: A Background Image Can Be All You Need

2 code implementations23 Jun 2022 An Wang, Mobarakol Islam, Mengya Xu, Hongliang Ren

Our empirical analysis suggests that without the high cost of data collection and annotation, we can achieve decent surgical instrument segmentation performance.

Domain Adaptation Incremental Learning +2

Semi-Supervised Formality Style Transfer with Consistency Training

1 code implementation ACL 2022 Ao Liu, An Wang, Naoaki Okazaki

In this work, we propose a simple yet effective semi-supervised framework to better utilize source-side unlabeled sentences based on consistency training.

 Ranked #1 on Formality Style Transfer on GYAFC (using extra training data)

Formality Style Transfer Sentence

On the Performance of Generative Adversarial Network (GAN) Variants: A Clinical Data Study

no code implementations21 Sep 2020 Jaesung Yoo, Jeman Park, An Wang, David Mohaisen, Joongheon Kim

Generative Adversarial Network (GAN) is a useful type of Neural Networks in various types of applications including generative models and feature extraction.

Generative Adversarial Network

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