Search Results for author: Dongnan Liu

Found 31 papers, 15 papers with code

Seeing Unseen: Discover Novel Biomedical Concepts via Geometry-Constrained Probabilistic Modeling

no code implementations2 Mar 2024 Jianan Fan, Dongnan Liu, Hang Chang, Heng Huang, Mei Chen, Weidong Cai

Machine learning holds tremendous promise for transforming the fundamental practice of scientific discovery by virtue of its data-driven nature.

Computational Efficiency Novel Class Discovery

Multi-source-free Domain Adaptation via Uncertainty-aware Adaptive Distillation

no code implementations9 Feb 2024 Yaxuan Song, Jianan Fan, Dongnan Liu, Weidong Cai

Source-free domain adaptation (SFDA) alleviates the domain discrepancy among data obtained from domains without accessing the data for the awareness of data privacy.

Knowledge Distillation Source-Free Domain Adaptation +1

Learning to Generalize over Subpartitions for Heterogeneity-aware Domain Adaptive Nuclei Segmentation

no code implementations17 Jan 2024 Jianan Fan, Dongnan Liu, Hang Chang, Weidong Cai

Annotation scarcity and cross-modality/stain data distribution shifts are two major obstacles hindering the application of deep learning models for nuclei analysis, which holds a broad spectrum of potential applications in digital pathology.

Disentanglement Unsupervised Domain Adaptation

Complex Organ Mask Guided Radiology Report Generation

1 code implementation4 Nov 2023 Tiancheng Gu, Dongnan Liu, Zhiyuan Li, Weidong Cai

The goal of automatic report generation is to generate a clinically accurate and coherent phrase from a single given X-ray image, which could alleviate the workload of traditional radiology reporting.

Medical Report Generation

ODM3D: Alleviating Foreground Sparsity for Semi-Supervised Monocular 3D Object Detection

1 code implementation28 Oct 2023 Weijia Zhang, Dongnan Liu, Chao Ma, Weidong Cai

Monocular 3D object detection (M3OD) is a significant yet inherently challenging task in autonomous driving due to absence of explicit depth cues in a single RGB image.

Autonomous Driving Data Augmentation +5

Exploring Annotation-free Image Captioning with Retrieval-augmented Pseudo Sentence Generation

1 code implementation27 Jul 2023 Zhiyuan Li, Dongnan Liu, Heng Wang, Chaoyi Zhang, Weidong Cai

We further show that with a simple extension, the generated pseudo sentences can be deployed as weak supervision to boost the 1% semi-supervised image caption benchmark up to 93. 4 CIDEr score (+8. 9) which showcases the versatility and effectiveness of our approach.

Image Captioning Model Optimization +2

Topology Repairing of Disconnected Pulmonary Airways and Vessels: Baselines and a Dataset

1 code implementation12 Jun 2023 Ziqiao Weng, Jiancheng Yang, Dongnan Liu, Weidong Cai

To address this challenge, we propose a post-processing approach that leverages a data-driven method to repair the topology of disconnected pulmonary tubular structures.

Keypoint Detection

SynthMix: Mixing up Aligned Synthesis for Medical Cross-Modality Domain Adaptation

no code implementations7 May 2023 Xinwen Zhang, Chaoyi Zhang, Dongnan Liu, Qianbi Yu, Weidong Cai

The adversarial methods showed advanced performance by producing synthetic images to mitigate the domain shift, a common problem due to the hardship of acquiring labelled data in medical field.

Domain Adaptation Philosophy

Unsupervised Domain Adaptation for Neuron Membrane Segmentation based on Structural Features

no code implementations4 May 2023 Yuxiang An, Dongnan Liu, Weidong Cai

In this work, we propose to improve the performance of UDA methods on cross-domain neuron membrane segmentation in EM images.

Segmentation Super-Resolution +1

Precise Few-shot Fat-free Thigh Muscle Segmentation in T1-weighted MRI

no code implementations27 Apr 2023 Sheng Chen, Zihao Tang, Dongnan Liu, Ché Fornusek, Michael Barnett, Chenyu Wang, Mariano Cabezas, Weidong Cai

However, due to the insufficient amount of precise annotations, thigh muscle masks generated by deep learning approaches tend to misclassify intra-muscular fat (IMF) as muscle impacting the analysis of muscle volumetrics.

Pseudo Label

TW-BAG: Tensor-wise Brain-aware Gate Network for Inpainting Disrupted Diffusion Tensor Imaging

no code implementations31 Oct 2022 Zihao Tang, Xinyi Wang, Lihaowen Zhu, Mariano Cabezas, Dongnan Liu, Michael Barnett, Weidong Cai, Chengyu Wang

Diffusion Weighted Imaging (DWI) is an advanced imaging technique commonly used in neuroscience and neurological clinical research through a Diffusion Tensor Imaging (DTI) model.

Unsupervised Domain Adaptive Fundus Image Segmentation with Few Labeled Source Data

no code implementations10 Oct 2022 Qianbi Yu, Dongnan Liu, Chaoyi Zhang, Xinwen Zhang, Weidong Cai

To further facilitate the data efficiency of the cross-domain segmentation methods on the fundus images, we explore UDA optic disc and cup segmentation problems using few labeled source data in this work.

Image Segmentation Segmentation +3

Domain Adaptive Nuclei Instance Segmentation and Classification via Category-aware Feature Alignment and Pseudo-labelling

no code implementations4 Jul 2022 Canran Li, Dongnan Liu, Haoran Li, Zheng Zhang, Guangming Lu, Xiaojun Chang, Weidong Cai

In this work, we propose a novel deep neural network, namely Category-Aware feature alignment and Pseudo-Labelling Network (CAPL-Net) for UDA nuclei instance segmentation and classification.

Classification Instance Segmentation +3

Towards Bi-directional Skip Connections in Encoder-Decoder Architectures and Beyond

no code implementations11 Mar 2022 Tiange Xiang, Chaoyi Zhang, Xinyi Wang, Yang song, Dongnan Liu, Heng Huang, Weidong Cai

With the backward skip connections, we propose a U-Net based network family, namely Bi-directional O-shape networks, which set new benchmarks on multiple public medical imaging segmentation datasets.

Medical Image Segmentation Neural Architecture Search +1

Decompose to Adapt: Cross-domain Object Detection via Feature Disentanglement

1 code implementation6 Jan 2022 Dongnan Liu, Chaoyi Zhang, Yang song, Heng Huang, Chenyu Wang, Michael Barnett, Weidong Cai

Recent advances in unsupervised domain adaptation (UDA) techniques have witnessed great success in cross-domain computer vision tasks, enhancing the generalization ability of data-driven deep learning architectures by bridging the domain distribution gaps.

Disentanglement object-detection +2

DSNet: A Dual-Stream Framework for Weakly-Supervised Gigapixel Pathology Image Analysis

no code implementations13 Sep 2021 Tiange Xiang, Yang song, Chaoyi Zhang, Dongnan Liu, Mei Chen, Fan Zhang, Heng Huang, Lauren O'Donnell, Weidong Cai

With image-level labels only, patch-wise classification would be sub-optimal due to inconsistency between the patch appearance and image-level label.

Classification whole slide images

BiX-NAS: Searching Efficient Bi-directional Architecture for Medical Image Segmentation

1 code implementation26 Jun 2021 Xinyi Wang, Tiange Xiang, Chaoyi Zhang, Yang song, Dongnan Liu, Heng Huang, Weidong Cai

We evaluate BiX-NAS on two segmentation tasks using three different medical image datasets, and the experimental results show that our BiX-NAS searched architecture achieves the state-of-the-art performance with significantly lower computational cost.

Image Segmentation Medical Image Segmentation +3

PDAM: A Panoptic-Level Feature Alignment Framework for Unsupervised Domain Adaptive Instance Segmentation in Microscopy Images

1 code implementation11 Sep 2020 Dongnan Liu, Donghao Zhang, Yang song, Fan Zhang, Lauren O'Donnell, Heng Huang, Mei Chen, Weidong Cai

In this work, we present an unsupervised domain adaptation (UDA) method, named Panoptic Domain Adaptive Mask R-CNN (PDAM), for unsupervised instance segmentation in microscopy images.

Instance Segmentation Segmentation +3

BiO-Net: Learning Recurrent Bi-directional Connections for Encoder-Decoder Architecture

1 code implementation1 Jul 2020 Tiange Xiang, Chaoyi Zhang, Dongnan Liu, Yang song, Heng Huang, Weidong Cai

U-Net has become one of the state-of-the-art deep learning-based approaches for modern computer vision tasks such as semantic segmentation, super resolution, image denoising, and inpainting.

Image Denoising Semantic Segmentation +1

Panoptic Feature Fusion Net: A Novel Instance Segmentation Paradigm for Biomedical and Biological Images

1 code implementation15 Feb 2020 Dongnan Liu, Donghao Zhang, Yang song, Heng Huang, Weidong Cai

Specifically, our proposed PFFNet contains a residual attention feature fusion mechanism to incorporate the instance prediction with the semantic features, in order to facilitate the semantic contextual information learning in the instance branch.

Instance Segmentation Medical Image Segmentation +2

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