Search Results for author: Weidong Cai

Found 97 papers, 40 papers with code

Unsupervised dMRI Artifact Detection via Angular Resolution Enhancement and Cycle Consistency Learning

no code implementations24 Sep 2024 Sheng Chen, Zihao Tang, Xinyi Wang, Chenyu Wang, Weidong Cai

UdAD-AC leverages dMRI angular resolution enhancement and cycle consistency learning to capture the effective representation of artifact-free dMRI data during training, and it identifies data containing artifacts using designed confidence score during inference.

Artifact Detection

Enhancing Advanced Visual Reasoning Ability of Large Language Models

no code implementations21 Sep 2024 Zhiyuan Li, Dongnan Liu, Chaoyi Zhang, Heng Wang, Tengfei Xue, Weidong Cai

Recent advancements in Vision-Language (VL) research have sparked new benchmarks for complex visual reasoning, challenging models' advanced reasoning ability.

In-Context Learning Visual Reasoning

Enhancing Angular Resolution via Directionality Encoding and Geometric Constraints in Brain Diffusion Tensor Imaging

no code implementations11 Sep 2024 Sheng Chen, Zihao Tang, Mariano Cabezas, Xinyi Wang, Arkiev D'Souza, Michael Barnett, Fernando Calamante, Weidong Cai, Chenyu Wang

Diffusion-weighted imaging (DWI) is a type of Magnetic Resonance Imaging (MRI) technique sensitised to the diffusivity of water molecules, offering the capability to inspect tissue microstructures and is the only in-vivo method to reconstruct white matter fiber tracts non-invasively.

Revisiting Surgical Instrument Segmentation Without Human Intervention: A Graph Partitioning View

1 code implementation27 Aug 2024 Mingyu Sheng, Jianan Fan, Dongnan Liu, Ron Kikinis, Weidong Cai

In this work, we propose an unsupervised method by reframing the video frame segmentation as a graph partitioning problem and regarding image pixels as graph nodes, which is significantly different from the previous efforts.

graph partitioning

CLIP-CID: Efficient CLIP Distillation via Cluster-Instance Discrimination

no code implementations18 Aug 2024 Kaicheng Yang, Tiancheng Gu, Xiang An, Haiqiang Jiang, Xiangzi Dai, Ziyong Feng, Weidong Cai, Jiankang Deng

In this paper, we introduce CLIP-CID, a novel distillation mechanism that effectively transfers knowledge from a large vision-language foundation model to a smaller model.

Knowledge Distillation Transfer Learning +1

Controllable Contextualized Image Captioning: Directing the Visual Narrative through User-Defined Highlights

1 code implementation16 Jul 2024 Shunqi Mao, Chaoyi Zhang, Hang Su, Hwanjun Song, Igor Shalyminov, Weidong Cai

Contextualized Image Captioning (CIC) evolves traditional image captioning into a more complex domain, necessitating the ability for multimodal reasoning.

Image Captioning Multimodal Reasoning

Symmetry Awareness Encoded Deep Learning Framework for Brain Imaging Analysis

1 code implementation12 Jul 2024 Yang Ma, Dongang Wang, Peilin Liu, Lynette Masters, Michael Barnett, Weidong Cai, Chenyu Wang

The heterogeneity of neurological conditions, ranging from structural anomalies to functional impairments, presents a significant challenge in medical imaging analysis tasks.

TractGraphFormer: Anatomically Informed Hybrid Graph CNN-Transformer Network for Classification from Diffusion MRI Tractography

no code implementations11 Jul 2024 Yuqian Chen, Fan Zhang, Meng Wang, Leo R. Zekelman, Suheyla Cetin-Karayumak, Tengfei Xue, Chaoyi Zhang, Yang song, Nikos Makris, Yogesh Rathi, Weidong Cai, Lauren J. O'Donnell

The proposed approach highlights the potential of integrating local anatomical information and global feature dependencies to improve prediction performance in machine learning with diffusion MRI tractography.

RWKV-CLIP: A Robust Vision-Language Representation Learner

1 code implementation11 Jun 2024 Tiancheng Gu, Kaicheng Yang, Xiang An, Ziyong Feng, Dongnan Liu, Weidong Cai, Jiankang Deng

Contrastive Language-Image Pre-training (CLIP) has significantly improved performance in various vision-language tasks by expanding the dataset with image-text pairs obtained from websites.

Image-text Retrieval Representation Learning +2

Dance Any Beat: Blending Beats with Visuals in Dance Video Generation

no code implementations15 May 2024 Xuanchen Wang, Heng Wang, Dongnan Liu, Weidong Cai

Current methods create skeleton keypoint sequences, not full dance videos, and cannot make specific individuals dance, limiting their real-world use.

Image to Video Generation Optical Flow Estimation +1

Boosting 3D Neuron Segmentation with 2D Vision Transformer Pre-trained on Natural Images

no code implementations4 May 2024 Yik San Cheng, Runkai Zhao, Heng Wang, Hanchuan Peng, Weidong Cai

To address this limitation, we aim to distill the consensus knowledge from massive natural image data to aid the segmentation model in learning the complex neuron structures.

Segmentation

How Much Data are Enough? Investigating Dataset Requirements for Patch-Based Brain MRI Segmentation Tasks

no code implementations4 Apr 2024 Dongang Wang, Peilin Liu, Hengrui Wang, Heidi Beadnall, Kain Kyle, Linda Ly, Mariano Cabezas, Geng Zhan, Ryan Sullivan, Weidong Cai, Wanli Ouyang, Fernando Calamante, Michael Barnett, Chenyu Wang

This paper focuses on an early stage phase of deep learning research, prior to model development, and proposes a strategic framework for estimating the amount of annotated data required to train patch-based segmentation networks.

MRI segmentation

Exploiting Structural Consistency of Chest Anatomy for Unsupervised Anomaly Detection in Radiography Images

1 code implementation13 Mar 2024 Tiange Xiang, Yixiao Zhang, Yongyi Lu, Alan Yuille, Chaoyi Zhang, Weidong Cai, Zongwei Zhou

To this end, we propose a Simple Space-Aware Memory Matrix for In-painting and Detecting anomalies from radiography images (abbreviated as SimSID).

Anatomy Image Reconstruction +1

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

Device-Wise Federated Network Pruning

no code implementations CVPR 2024 Shangqian Gao, Junyi Li, Zeyu Zhang, yanfu Zhang, Weidong Cai, Heng Huang

Neural network pruning particularly channel pruning is a widely used technique for compressing deep learning models to enable their deployment on edge devices with limited resources.

Edge-computing Federated Learning +1

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

PaintHuman: Towards High-fidelity Text-to-3D Human Texturing via Denoised Score Distillation

no code implementations14 Oct 2023 Jianhui Yu, Hao Zhu, Liming Jiang, Chen Change Loy, Weidong Cai, Wayne Wu

We first propose a novel score function, Denoised Score Distillation (DSD), which directly modifies the SDS by introducing negative gradient components to iteratively correct the gradient direction and generate high-quality textures.

Text to 3D text-to-3d-human +1

Advancements in 3D Lane Detection Using LiDAR Point Clouds: From Data Collection to Model Development

1 code implementation24 Sep 2023 Runkai Zhao, Yuwen Heng, Heng Wang, Yuanda Gao, Shilei Liu, Changhao Yao, Jiawen Chen, Weidong Cai

Advanced Driver-Assistance Systems (ADAS) have successfully integrated learning-based techniques into vehicle perception and decision-making.

3D Lane Detection Decision Making

Implicit Neural Representation for MRI Parallel Imaging Reconstruction

no code implementations12 Sep 2023 Hao Li, Yusheng Zhou, Jianan Liu, Xiling Liu, Tao Huang, Zhihan Lv, Weidong Cai

Our approach represents reconstructed fully-sampled images as functions of voxel coordinates and prior feature vectors from undersampled images, addressing the generalization challenges of INR.

MRI Reconstruction

V2A-Mapper: A Lightweight Solution for Vision-to-Audio Generation by Connecting Foundation Models

1 code implementation18 Aug 2023 Heng Wang, Jianbo Ma, Santiago Pascual, Richard Cartwright, Weidong Cai

In this paper, we propose a lightweight solution to this problem by leveraging foundation models, specifically CLIP, CLAP, and AudioLDM.

Audio Generation

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

TractCloud: Registration-free tractography parcellation with a novel local-global streamline point cloud representation

no code implementations18 Jul 2023 Tengfei Xue, Yuqian Chen, Chaoyi Zhang, Alexandra J. Golby, Nikos Makris, Yogesh Rathi, Weidong Cai, Fan Zhang, Lauren J. O'Donnell

TractCloud achieves efficient and consistent whole-brain white matter parcellation across the lifespan (from neonates to elderly subjects, including brain tumor patients) without the need for registration.

Anatomy

TractGeoNet: A geometric deep learning framework for pointwise analysis of tract microstructure to predict language assessment performance

no code implementations8 Jul 2023 Yuqian Chen, Leo R. Zekelman, Chaoyi Zhang, Tengfei Xue, Yang song, Nikos Makris, Yogesh Rathi, Alexandra J. Golby, Weidong Cai, Fan Zhang, Lauren J. O'Donnell

We evaluate the effectiveness of the proposed method by predicting individual performance on two neuropsychological assessments of language using a dataset of 20 association white matter fiber tracts from 806 subjects from the Human Connectome Project.

regression

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

CelebV-Text: A Large-Scale Facial Text-Video Dataset

1 code implementation CVPR 2023 Jianhui Yu, Hao Zhu, Liming Jiang, Chen Change Loy, Weidong Cai, Wayne Wu

This paper presents CelebV-Text, a large-scale, diverse, and high-quality dataset of facial text-video pairs, to facilitate research on facial text-to-video generation tasks.

Text Generation Text-to-Video Generation +1

LFACon: Introducing Anglewise Attention to No-Reference Quality Assessment in Light Field Space

1 code implementation20 Mar 2023 Qiang Qu, Xiaoming Chen, Yuk Ying Chung, Weidong Cai

In this paper, we propose a novel concept of "anglewise attention" by introducing a multihead self-attention mechanism to the angular domain of an LFI.

Image Quality Assessment

Fiber Tract Shape Measures Inform Prediction of Non-Imaging Phenotypes

no code implementations16 Mar 2023 Wan Liu, Yuqian Chen, Chuyang Ye, Nikos Makris, Yogesh Rathi, Weidong Cai, Fan Zhang, Lauren J. O'Donnell

In this paper, we investigate the potential of fiber tract shape features for predicting non-imaging phenotypes, both individually and in combination with traditional features.

PaRot: Patch-Wise Rotation-Invariant Network via Feature Disentanglement and Pose Restoration

1 code implementation6 Feb 2023 Dingxin Zhang, Jianhui Yu, Chaoyi Zhang, Weidong Cai

To solve this problem, we propose a rotation-invariant geometric relation to restore the relative pose with equivariant information for patches defined over different scales.

3D Object Classification Disentanglement

TractGraphCNN: anatomically informed graph CNN for classification using diffusion MRI tractography

no code implementations5 Jan 2023 Yuqian Chen, Fan Zhang, Leo R. Zekelman, Tengfei Xue, Chaoyi Zhang, Yang song, Nikos Makris, Yogesh Rathi, Weidong Cai, Lauren J. O'Donnell

This work shows the potential of incorporating anatomical information, especially known anatomical similarities between input features, to guide convolutions in neural networks.

Rethinking Rotation Invariance with Point Cloud Registration

no code implementations31 Dec 2022 Jianhui Yu, Chaoyi Zhang, Weidong Cai

Recent investigations on rotation invariance for 3D point clouds have been devoted to devising rotation-invariant feature descriptors or learning canonical spaces where objects are semantically aligned.

3D Shape Classification Point Cloud Registration +1

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

White Matter Tracts are Point Clouds: Neuropsychological Score Prediction and Critical Region Localization via Geometric Deep Learning

no code implementations6 Jul 2022 Yuqian Chen, Fan Zhang, Chaoyi Zhang, Tengfei Xue, Leo R. Zekelman, Jianzhong He, Yang song, Nikos Makris, Yogesh Rathi, Alexandra J. Golby, Weidong Cai, Lauren J. O'Donnell

In this paper, we propose a deep-learning-based framework for neuropsychological score prediction using microstructure measurements estimated from diffusion magnetic resonance imaging (dMRI) tractography, focusing on predicting performance on a receptive vocabulary assessment task based on a critical fiber tract for language, the arcuate fasciculus (AF).

TractoFormer: A Novel Fiber-level Whole Brain Tractography Analysis Framework Using Spectral Embedding and Vision Transformers

no code implementations5 Jul 2022 Fan Zhang, Tengfei Xue, Weidong Cai, Yogesh Rathi, Carl-Fredrik Westin, Lauren J O'Donnell

Whole brain tractography (WBT) data contains over hundreds of thousands of individual fiber streamlines (estimated brain connections), and this data is usually parcellated to create compact representations for data analysis applications such as disease classification.

Data Augmentation Ensemble Learning

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 Generalisable Audio Representations for Audio-Visual Navigation

no code implementations1 Jun 2022 Shunqi Mao, Chaoyi Zhang, Heng Wang, Weidong Cai

In audio-visual navigation (AVN), an intelligent agent needs to navigate to a constantly sound-making object in complex 3D environments based on its audio and visual perceptions.

Contrastive Learning Data Augmentation +2

Deep fiber clustering: Anatomically informed fiber clustering with self-supervised deep learning for fast and effective tractography parcellation

1 code implementation2 May 2022 Yuqian Chen, Chaoyi Zhang, Tengfei Xue, Yang song, Nikos Makris, Yogesh Rathi, Weidong Cai, Fan Zhang, Lauren J. O'Donnell

In this work, we propose a novel deep learning framework for white matter fiber clustering, Deep Fiber Clustering (DFC), which solves the unsupervised clustering problem as a self-supervised learning task with a domain-specific pretext task to predict pairwise fiber distances.

Anatomy Clustering +3

Spatiality-guided Transformer for 3D Dense Captioning on Point Clouds

1 code implementation22 Apr 2022 Heng Wang, Chaoyi Zhang, Jianhui Yu, Weidong Cai

Dense captioning in 3D point clouds is an emerging vision-and-language task involving object-level 3D scene understanding.

3D dense captioning 3D Object Detection +7

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.

Decoder Medical Image Segmentation +2

HNF-Netv2 for Brain Tumor Segmentation using multi-modal MR Imaging

no code implementations10 Feb 2022 Haozhe Jia, Chao Bai, Weidong Cai, Heng Huang, Yong Xia

In our previous work, $i. e.$, HNF-Net, high-resolution feature representation and light-weight non-local self-attention mechanism are exploited for brain tumor segmentation using multi-modal MR imaging.

Brain Tumor Segmentation Segmentation +1

SupWMA: Consistent and Efficient Tractography Parcellation of Superficial White Matter with Deep Learning

1 code implementation29 Jan 2022 Tengfei Xue, Fan Zhang, Chaoyi Zhang, Yuqian Chen, Yang song, Nikos Makris, Yogesh Rathi, Weidong Cai, Lauren J. O'Donnell

Most parcellation methods focus on the deep white matter (DWM), while fewer methods address the superficial white matter (SWM) due to its complexity.

Contrastive Learning

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 +3

SQUID: Deep Feature In-Painting for Unsupervised Anomaly Detection

2 code implementations CVPR 2023 Tiange Xiang, Yixiao Zhang, Yongyi Lu, Alan L. Yuille, Chaoyi Zhang, Weidong Cai, Zongwei Zhou

Radiography imaging protocols focus on particular body regions, therefore producing images of great similarity and yielding recurrent anatomical structures across patients.

Anatomy Unsupervised Anomaly Detection

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

Voxel-wise Cross-Volume Representation Learning for 3D Neuron Reconstruction

no code implementations14 Aug 2021 Heng Wang, Chaoyi Zhang, Jianhui Yu, Yang song, SiQi Liu, Wojciech Chrzanowski, Weidong Cai

Recently, a series of deep learning based segmentation methods have been proposed to improve the quality of raw 3D optical image stacks by removing noises and restoring neuronal structures from low-contrast background.

Decoder Representation Learning +1

PSGR: Pixel-wise Sparse Graph Reasoning for COVID-19 Pneumonia Segmentation in CT Images

no code implementations9 Aug 2021 Haozhe Jia, Haoteng Tang, Guixiang Ma, Weidong Cai, Heng Huang, Liang Zhan, Yong Xia

In the PSGR module, a graph is first constructed by projecting each pixel on a node based on the features produced by the segmentation backbone, and then converted into a sparsely-connected graph by keeping only K strongest connections to each uncertain pixel.

Computed Tomography (CT) graph construction +3

Boundary-aware Graph Reasoning for Semantic Segmentation

no code implementations9 Aug 2021 Haoteng Tang, Haozhe Jia, Weidong Cai, Heng Huang, Yong Xia, Liang Zhan

In this paper, we propose a Boundary-aware Graph Reasoning (BGR) module to learn long-range contextual features for semantic segmentation.

graph construction Segmentation +1

Deep Fiber Clustering: Anatomically Informed Unsupervised Deep Learning for Fast and Effective White Matter Parcellation

no code implementations11 Jul 2021 Yuqian Chen, Chaoyi Zhang, Yang song, Nikos Makris, Yogesh Rathi, Weidong Cai, Fan Zhang, Lauren J. O'Donnell

White matter fiber clustering (WMFC) enables parcellation of white matter tractography for applications such as disease classification and anatomical tract segmentation.

Clustering Segmentation +1

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

Network Pruning via Performance Maximization

1 code implementation CVPR 2021 Shangqian Gao, Feihu Huang, Weidong Cai, Heng Huang

Specifically, we train a stand-alone neural network to predict sub-networks' performance and then maximize the output of the network as a proxy of accuracy to guide pruning.

Model Compression Network Pruning

Partial Graph Reasoning for Neural Network Regularization

no code implementations3 Jun 2021 Tiange Xiang, Chaoyi Zhang, Yang song, SiQi Liu, Hongliang Yuan, Weidong Cai

This add-on graph regularizes the network during training and can be completely skipped during inference.

Single Neuron Segmentation using Graph-based Global Reasoning with Auxiliary Skeleton Loss from 3D Optical Microscope Images

no code implementations22 Jan 2021 Heng Wang, Yang song, Chaoyi Zhang, Jianhui Yu, SiQi Liu, Hanchuan Peng, Weidong Cai

One of the critical steps in improving accurate single neuron reconstruction from three-dimensional (3D) optical microscope images is the neuronal structure segmentation.

Segmentation

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.

Decoder Image Denoising +2

ICE-GAN: Identity-aware and Capsule-Enhanced GAN with Graph-based Reasoning for Micro-Expression Recognition and Synthesis

1 code implementation9 May 2020 Jianhui Yu, Chaoyi Zhang, Yang song, Weidong Cai

Micro-expressions are reflections of people's true feelings and motives, which attract an increasing number of researchers into the study of automatic facial micro-expression recognition.

Generative Adversarial Network Micro Expression Recognition +1

Graph Attention Network based Pruning for Reconstructing 3D Liver Vessel Morphology from Contrasted CT Images

no code implementations18 Mar 2020 Donghao Zhang, Si-Qi Liu, Shikha Chaganti, Eli Gibson, Zhoubing Xu, Sasa Grbic, Weidong Cai, Dorin Comaniciu

In this paper, we propose a framework for liver vessel morphology reconstruction using both a fully convolutional neural network and a graph attention network.

3D Reconstruction Decision Making +2

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

Region and Object based Panoptic Image Synthesis through Conditional GANs

no code implementations14 Dec 2019 Heng Wang, Donghao Zhang, Yang song, Heng Huang, Mei Chen, Weidong Cai

Our contribution consists of the proposal of a significant task worth investigating and a naive baseline of solving it.

Image-to-Image Translation Translation

3D Global Convolutional Adversarial Network\\ for Prostate MR Volume Segmentation

no code implementations18 Jul 2018 Haozhe Jia, Yang song, Donghao Zhang, Heng Huang, Dagan Feng, Michael Fulham, Yong Xia, Weidong Cai

In this paper, we propose a 3D Global Convolutional Adversarial Network (3D GCA-Net) to address efficient prostate MR volume segmentation.

Decoder General Classification +1

Deep Clustering via Joint Convolutional Autoencoder Embedding and Relative Entropy Minimization

1 code implementation ICCV 2017 Kamran Ghasedi Dizaji, Amirhossein Herandi, Cheng Deng, Weidong Cai, Heng Huang

We define a clustering objective function using relative entropy (KL divergence) minimization, regularized by a prior for the frequency of cluster assignments.

Clustering Deep Clustering +1

Error Analysis of Generalized Nyström Kernel Regression

no code implementations NeurIPS 2016 Hong Chen, Haifeng Xia, Heng Huang, Weidong Cai

Nystr\"{o}m method has been used successfully to improve the computational efficiency of kernel ridge regression (KRR).

Computational Efficiency regression

Morphometry-Based Longitudinal Neurodegeneration Simulation with MR Imaging

no code implementations24 Aug 2015 Si-Qi Liu, Sidong Liu, Sonia Pujol, Ron Kikinis, Dagan Feng, Michael Fulham, Weidong Cai

We present a longitudinal MR simulation framework which simulates the future neurodegenerative progression by outputting the predicted follow-up MR image and the voxel-based morphometry (VBM) map.

Robust Saliency Detection via Regularized Random Walks Ranking

no code implementations CVPR 2015 Changyang Li, Yuchen Yuan, Weidong Cai, Yong Xia, David Dagan Feng

In the field of saliency detection, many graph-based algorithms heavily depend on the accuracy of the pre-processed superpixel segmentation, which leads to significant sacrifice of detail information from the input image.

Saliency Detection

Fusing Subcategory Probabilities for Texture Classification

no code implementations CVPR 2015 Yang Song, Weidong Cai, Qing Li, Fan Zhang, David Dagan Feng, Heng Huang

Texture, as a fundamental characteristic of objects, has attracted much attention in computer vision research.

Classification Clustering +2

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