Search Results for author: Wenyu Liu

Found 135 papers, 94 papers with code

Partial Scene Text Retrieval

1 code implementation15 Nov 2024 Hao Wang, Minghui Liao, Zhouyi Xie, Wenyu Liu, Xiang Bai

To address this issue, we propose a Ranking MIL (RankMIL) approach to adaptively filter those noisy samples.

Multiple Instance Learning Text Retrieval

FasterDiT: Towards Faster Diffusion Transformers Training without Architecture Modification

no code implementations14 Oct 2024 Jingfeng Yao, Wang Cheng, Wenyu Liu, Xinggang Wang

(3) We develop a new supervision method that further accelerates the training process of DiT.

LCD-Net: A Lightweight Remote Sensing Change Detection Network Combining Feature Fusion and Gating Mechanism

1 code implementation14 Oct 2024 Wenyu Liu, Jindong Li, Haoji Wang, Run Tan, Yali Fu, Qichuan Tian

To address these challenges, we propose a Lightweight remote sensing Change Detection Network (LCD-Net in short) that reduces model size and computational cost while maintaining high detection performance.

Change Detection Decoder

ControlAR: Controllable Image Generation with Autoregressive Models

1 code implementation3 Oct 2024 Zongming Li, Tianheng Cheng, Shoufa Chen, Peize Sun, Haocheng Shen, Longjin Ran, Xiaoxin Chen, Wenyu Liu, Xinggang Wang

Firstly, we explore control encoding for AR models and propose a lightweight control encoder to transform spatial inputs (e. g., canny edges or depth maps) into control tokens.

Image Generation

Dynamic 2D Gaussians: Geometrically accurate radiance fields for dynamic objects

1 code implementation21 Sep 2024 Shuai Zhang, Guanjun Wu, Xinggang Wang, Bin Feng, Wenyu Liu

In this paper, we propose a novel representation that can reconstruct accurate meshes from sparse image input, named Dynamic 2D Gaussians (D-2DGS).

TrackSSM: A General Motion Predictor by State-Space Model

1 code implementation31 Aug 2024 Bin Hu, Run Luo, Zelin Liu, Cheng Wang, Wenyu Liu

Specifically, we propose Flow-SSM, a module that utilizes the position and motion information from historical trajectories to guide the temporal state transition of object bounding boxes.

Decoder Mamba +5

PersonViT: Large-scale Self-supervised Vision Transformer for Person Re-Identification

1 code implementation10 Aug 2024 Bin Hu, Xinggang Wang, Wenyu Liu

To this end, this article introduces the recently emerged Masked Image Modeling (MIM) self-supervised learning method into person ReID, and effectively extracts high-quality global and local features through large-scale unsupervised pre-training by combining masked image modeling and discriminative contrastive learning, and then conducts supervised fine-tuning training in the person ReID task.

Contrastive Learning Person Re-Identification +2

LKCell: Efficient Cell Nuclei Instance Segmentation with Large Convolution Kernels

1 code implementation25 Jul 2024 Ziwei Cui, Jingfeng Yao, Lunbin Zeng, Juan Yang, Wenyu Liu, Xinggang Wang

We evaluate our method on the most challenging benchmark and achieve state-of-the-art results (0. 5080 mPQ) in cell nuclei instance segmentation with only 21. 6% FLOPs compared with the previous leading method.

Cell Segmentation Decoder +3

XS-VID: An Extremely Small Video Object Detection Dataset

no code implementations25 Jul 2024 Jiahao Guo, Ziyang Xu, Lianjun Wu, Fei Gao, Wenyu Liu, Xinggang Wang

Small Video Object Detection (SVOD) is a crucial subfield in modern computer vision, essential for early object discovery and detection.

Diversity Object +4

Visual Text Generation in the Wild

1 code implementation19 Jul 2024 Yuanzhi Zhu, Jiawei Liu, Feiyu Gao, Wenyu Liu, Xinggang Wang, Peng Wang, Fei Huang, Cong Yao, Zhibo Yang

However, it is still challenging to render high-quality text images in real-world scenarios, as three critical criteria should be satisfied: (1) Fidelity: the generated text images should be photo-realistic and the contents are expected to be the same as specified in the given conditions; (2) Reasonability: the regions and contents of the generated text should cohere with the scene; (3) Utility: the generated text images can facilitate related tasks (e. g., text detection and recognition).

Language Modelling Large Language Model +3

Segment Any 4D Gaussians

no code implementations5 Jul 2024 Shengxiang Ji, Guanjun Wu, Jiemin Fang, Jiazhong Cen, Taoran Yi, Wenyu Liu, Qi Tian, Xinggang Wang

However, there is a dearth of research focusing on segmentation within 4D representations.

Segmentation

Occupancy as Set of Points

1 code implementation4 Jul 2024 Yiang Shi, Tianheng Cheng, Qian Zhang, Wenyu Liu, Xinggang Wang

Owing to the inherent flexibility of the point-based representation, OSP achieves strong performance compared with existing methods and excels in terms of training and inference adaptability.

EVF-SAM: Early Vision-Language Fusion for Text-Prompted Segment Anything Model

1 code implementation28 Jun 2024 Yuxuan Zhang, Tianheng Cheng, Rui Hu, Lei Liu, Heng Liu, Longjin Ran, Xiaoxin Chen, Wenyu Liu, Xinggang Wang

Surprisingly, we observe that: (1) multimodal prompts and (2) vision-language models with early fusion (e. g., BEIT-3) are beneficial for prompting SAM for accurate referring segmentation.

Interactive Segmentation Language Modelling +3

TOGS: Gaussian Splatting with Temporal Opacity Offset for Real-Time 4D DSA Rendering

1 code implementation28 Mar 2024 Shuai Zhang, Huangxuan Zhao, Zhenghong Zhou, Guanjun Wu, Chuansheng Zheng, Xinggang Wang, Wenyu Liu

To overcome these limitations, we propose TOGS, a Gaussian splatting method with opacity offset over time, which can effectively improve the rendering quality and speed of 4D DSA.

ViTGaze: Gaze Following with Interaction Features in Vision Transformers

1 code implementation19 Mar 2024 Yuehao Song, Xinggang Wang, Jingfeng Yao, Wenyu Liu, Jinglin Zhang, Xiangmin Xu

Gaze following aims to interpret human-scene interactions by predicting the person's focal point of gaze.

MIM4D: Masked Modeling with Multi-View Video for Autonomous Driving Representation Learning

1 code implementation13 Mar 2024 Jialv Zou, Bencheng Liao, Qian Zhang, Wenyu Liu, Xinggang Wang

Learning robust and scalable visual representations from massive multi-view video data remains a challenge in computer vision and autonomous driving.

3D Object Detection Autonomous Driving +2

VADv2: End-to-End Vectorized Autonomous Driving via Probabilistic Planning

1 code implementation20 Feb 2024 Shaoyu Chen, Bo Jiang, Hao Gao, Bencheng Liao, Qing Xu, Qian Zhang, Chang Huang, Wenyu Liu, Xinggang Wang

Learning a human-like driving policy from large-scale driving demonstrations is promising, but the uncertainty and non-deterministic nature of planning make it challenging.

Autonomous Driving

YOLO-World: Real-Time Open-Vocabulary Object Detection

2 code implementations CVPR 2024 Tianheng Cheng, Lin Song, Yixiao Ge, Wenyu Liu, Xinggang Wang, Ying Shan

The You Only Look Once (YOLO) series of detectors have established themselves as efficient and practical tools.

Ranked #5 on Zero-Shot Object Detection on MSCOCO (using extra training data)

Instance Segmentation Language Modelling +5

Vision Mamba: Efficient Visual Representation Learning with Bidirectional State Space Model

12 code implementations17 Jan 2024 Lianghui Zhu, Bencheng Liao, Qian Zhang, Xinlong Wang, Wenyu Liu, Xinggang Wang

The results demonstrate that Vim is capable of overcoming the computation & memory constraints on performing Transformer-style understanding for high-resolution images and it has great potential to be the next-generation backbone for vision foundation models.

Image Classification Mamba +6

Fast High Dynamic Range Radiance Fields for Dynamic Scenes

no code implementations11 Jan 2024 Guanjun Wu, Taoran Yi, Jiemin Fang, Wenyu Liu, Xinggang Wang

To extend HDR NeRF methods to wider applications, we propose a dynamic HDR NeRF framework, named HDR-HexPlane, which can learn 3D scenes from dynamic 2D images captured with various exposures.

Circuit as Set of Points

1 code implementation NeurIPS 2023 Jialv Zou, Xinggang Wang, Jiahao Guo, Wenyu Liu, Qian Zhang, Chang Huang

In our work, we propose a novel perspective for circuit design by treating circuit components as point clouds and using Transformer-based point cloud perception methods to extract features from the circuit.

Label-efficient Segmentation via Affinity Propagation

1 code implementation NeurIPS 2023 Wentong Li, Yuqian Yuan, Song Wang, Wenyu Liu, Dongqi Tang, Jian Liu, Jianke Zhu, Lei Zhang

In this work, we formulate the affinity modeling as an affinity propagation process, and propose a local and a global pairwise affinity terms to generate accurate soft pseudo labels.

Box-supervised Instance Segmentation Segmentation +2

MapTRv2: An End-to-End Framework for Online Vectorized HD Map Construction

2 code implementations10 Aug 2023 Bencheng Liao, Shaoyu Chen, Yunchi Zhang, Bo Jiang, Qian Zhang, Wenyu Liu, Chang Huang, Xinggang Wang

We propose a unified permutation-equivalent modeling approach, \ie, modeling map element as a point set with a group of equivalent permutations, which accurately describes the shape of map element and stabilizes the learning process.

Autonomous Driving Online Vectorized HD Map Construction

SparseTrack: Multi-Object Tracking by Performing Scene Decomposition based on Pseudo-Depth

2 code implementations8 Jun 2023 Zelin Liu, Xinggang Wang, Cheng Wang, Wenyu Liu, Xiang Bai

By integrating the pseudo-depth method and the DCM strategy into the data association process, we propose a new tracker, called SparseTrack.

Ranked #6 on Multi-Object Tracking on MOT20 (using extra training data)

Depth Estimation Multi-Object Tracking +1

Matte Anything: Interactive Natural Image Matting with Segment Anything Models

1 code implementation7 Jun 2023 Jingfeng Yao, Xinggang Wang, Lang Ye, Wenyu Liu

In our work, we leverage vision foundation models to enhance the performance of natural image matting.

Image Matting

GaitGS: Temporal Feature Learning in Granularity and Span Dimension for Gait Recognition

1 code implementation31 May 2023 Haijun Xiong, Yunze Deng, Bin Feng, Xinggang Wang, Wenyu Liu

Gait recognition, a growing field in biological recognition technology, utilizes distinct walking patterns for accurate individual identification.

Gait Recognition

LiDAR2Map: In Defense of LiDAR-Based Semantic Map Construction Using Online Camera Distillation

1 code implementation CVPR 2023 Song Wang, Wentong Li, Wenyu Liu, Xiaolu Liu, Jianke Zhu

To mitigate the defects caused by lacking semantic cues in LiDAR data, we present an online Camera-to-LiDAR distillation scheme to facilitate the semantic learning from image to point cloud.

Autonomous Driving Decoder

VMA: Divide-and-Conquer Vectorized Map Annotation System for Large-Scale Driving Scene

1 code implementation19 Apr 2023 Shaoyu Chen, Yunchi Zhang, Bencheng Liao, Jiafeng Xie, Tianheng Cheng, Wei Sui, Qian Zhang, Chang Huang, Wenyu Liu, Xinggang Wang

We design a divide-and-conquer annotation scheme to solve the spatial extensibility problem of HD map generation, and abstract map elements with a variety of geometric patterns as unified point sequence representation, which can be extended to most map elements in the driving scene.

Autonomous Driving

TinyDet: Accurate Small Object Detection in Lightweight Generic Detectors

no code implementations7 Apr 2023 Shaoyu Chen, Tianheng Cheng, Jiemin Fang, Qian Zhang, Yuan Li, Wenyu Liu, Xinggang Wang

Small object detection requires the detection head to scan a large number of positions on image feature maps, which is extremely hard for computation- and energy-efficient lightweight generic detectors.

object-detection Small Object Detection

WeakTr: Exploring Plain Vision Transformer for Weakly-supervised Semantic Segmentation

1 code implementation3 Apr 2023 Lianghui Zhu, Yingyue Li, Jiemin Fang, Yan Liu, Hao Xin, Wenyu Liu, Xinggang Wang

Thus a novel weight-based method is proposed to end-to-end estimate the importance of attention heads, while the self-attention maps are adaptively fused for high-quality CAM results that tend to have more complete objects.

Decoder Weakly-supervised Learning +2

RPTQ: Reorder-based Post-training Quantization for Large Language Models

1 code implementation3 Apr 2023 Zhihang Yuan, Lin Niu, Jiawei Liu, Wenyu Liu, Xinggang Wang, Yuzhang Shang, Guangyu Sun, Qiang Wu, Jiaxiang Wu, Bingzhe Wu

In this paper, we identify that the challenge in quantizing activations in LLMs arises from varying ranges across channels, rather than solely the presence of outliers.

Quantization

MobileInst: Video Instance Segmentation on the Mobile

no code implementations30 Mar 2023 Renhong Zhang, Tianheng Cheng, Shusheng Yang, Haoyi Jiang, Shuai Zhang, Jiancheng Lyu, Xin Li, Xiaowen Ying, Dashan Gao, Wenyu Liu, Xinggang Wang

To address those issues, we present MobileInst, a lightweight and mobile-friendly framework for video instance segmentation on mobile devices.

Decoder Instance Segmentation +3

OpenInst: A Simple Query-Based Method for Open-World Instance Segmentation

1 code implementation28 Mar 2023 Cheng Wang, Guoli Wang, Qian Zhang, Peng Guo, Wenyu Liu, Xinggang Wang

Fortunately, we have identified two observations that help us achieve the best of both worlds: 1) query-based methods demonstrate superiority over dense proposal-based methods in open-world instance segmentation, and 2) learning localization cues is sufficient for open world instance segmentation.

Autonomous Driving Open-World Instance Segmentation +2

Generalizable Neural Voxels for Fast Human Radiance Fields

no code implementations27 Mar 2023 Taoran Yi, Jiemin Fang, Xinggang Wang, Wenyu Liu

Rendering moving human bodies at free viewpoints only from a monocular video is quite a challenging problem.

Novel View Synthesis

Benchmarking the Reliability of Post-training Quantization: a Particular Focus on Worst-case Performance

no code implementations23 Mar 2023 Zhihang Yuan, Jiawei Liu, Jiaxiang Wu, Dawei Yang, Qiang Wu, Guangyu Sun, Wenyu Liu, Xinggang Wang, Bingzhe Wu

Post-training quantization (PTQ) is a popular method for compressing deep neural networks (DNNs) without modifying their original architecture or training procedures.

Benchmarking Data Augmentation +1

VAD: Vectorized Scene Representation for Efficient Autonomous Driving

2 code implementations ICCV 2023 Bo Jiang, Shaoyu Chen, Qing Xu, Bencheng Liao, Jiajie Chen, Helong Zhou, Qian Zhang, Wenyu Liu, Chang Huang, Xinggang Wang

In this paper, we propose VAD, an end-to-end vectorized paradigm for autonomous driving, which models the driving scene as a fully vectorized representation.

Bench2Drive Trajectory Planning

Lane Graph as Path: Continuity-preserving Path-wise Modeling for Online Lane Graph Construction

1 code implementation15 Mar 2023 Bencheng Liao, Shaoyu Chen, Bo Jiang, Tianheng Cheng, Qian Zhang, Wenyu Liu, Chang Huang, Xinggang Wang

Motivated by this, we propose to model the lane graph in a novel path-wise manner, which well preserves the continuity of the lane and encodes traffic information for planning.

Autonomous Driving graph construction +1

Understanding Self-Supervised Pretraining with Part-Aware Representation Learning

1 code implementation27 Jan 2023 Jie Zhu, Jiyang Qi, Mingyu Ding, Xiaokang Chen, Ping Luo, Xinggang Wang, Wenyu Liu, Leye Wang, Jingdong Wang

The study is mainly motivated by that random views, used in contrastive learning, and random masked (visible) patches, used in masked image modeling, are often about object parts.

Contrastive Learning Object +1

Graph Contrastive Learning for Skeleton-based Action Recognition

1 code implementation26 Jan 2023 Xiaohu Huang, Hao Zhou, Jian Wang, Haocheng Feng, Junyu Han, Errui Ding, Jingdong Wang, Xinggang Wang, Wenyu Liu, Bin Feng

In this paper, we propose a graph contrastive learning framework for skeleton-based action recognition (\textit{SkeletonGCL}) to explore the \textit{global} context across all sequences.

Action Recognition Contrastive Learning +2

A Simple Adaptive Unfolding Network for Hyperspectral Image Reconstruction

1 code implementation24 Jan 2023 Junyu Wang, Shijie Wang, Wenyu Liu, Zengqiang Zheng, Xinggang Wang

We present a simple, efficient, and scalable unfolding network, SAUNet, to simplify the network design with an adaptive alternate optimization framework for hyperspectral image (HSI) reconstruction.

Image Reconstruction

PD-Quant: Post-Training Quantization based on Prediction Difference Metric

1 code implementation CVPR 2023 Jiawei Liu, Lin Niu, Zhihang Yuan, Dawei Yang, Xinggang Wang, Wenyu Liu

It determines the quantization parameters by using the information of differences between network prediction before and after quantization.

Neural Network Compression Quantization

Box2Mask: Box-supervised Instance Segmentation via Level-set Evolution

2 code implementations3 Dec 2022 Wentong Li, Wenyu Liu, Jianke Zhu, Miaomiao Cui, Risheng Yu, Xiansheng Hua, Lei Zhang

In contrast to fully supervised methods using pixel-wise mask labels, box-supervised instance segmentation takes advantage of simple box annotations, which has recently attracted increasing research attention.

Box-supervised Instance Segmentation Decoder +1

MapTR: Structured Modeling and Learning for Online Vectorized HD Map Construction

1 code implementation30 Aug 2022 Bencheng Liao, Shaoyu Chen, Xinggang Wang, Tianheng Cheng, Qian Zhang, Wenyu Liu, Chang Huang

High-definition (HD) map provides abundant and precise environmental information of the driving scene, serving as a fundamental and indispensable component for planning in autonomous driving system.

3D Lane Detection Autonomous Driving +1

Robust Multi-Object Tracking by Marginal Inference

no code implementations7 Aug 2022 Yifu Zhang, Chunyu Wang, Xinggang Wang, Wenjun Zeng, Wenyu Liu

To address the problem, we present an efficient approach to compute a marginal probability for each pair of objects in real time.

Multi-Object Tracking Object

When Counting Meets HMER: Counting-Aware Network for Handwritten Mathematical Expression Recognition

3 code implementations23 Jul 2022 Bohan Li, Ye Yuan, Dingkang Liang, Xiao Liu, Zhilong Ji, Jinfeng Bai, Wenyu Liu, Xiang Bai

Recently, most handwritten mathematical expression recognition (HMER) methods adopt the encoder-decoder networks, which directly predict the markup sequences from formula images with the attention mechanism.

Decoder Handwritten Mathmatical Expression Recognition +1

Box-supervised Instance Segmentation with Level Set Evolution

1 code implementation19 Jul 2022 Wentong Li, Wenyu Liu, Jianke Zhu, Miaomiao Cui, Xiansheng Hua, Lei Zhang

A simple mask supervised SOLOv2 model is adapted to predict the instance-aware mask map as the level set for each instance.

Box-supervised Instance Segmentation Segmentation

Improving Nighttime Driving-Scene Segmentation via Dual Image-adaptive Learnable Filters

2 code implementations4 Jul 2022 Wenyu Liu, Wentong Li, Jianke Zhu, Miaomiao Cui, Xuansong Xie, Lei Zhang

With DIAL-Filters, we design both unsupervised and supervised frameworks for nighttime driving-scene segmentation, which can be trained in an end-to-end manner.

Autonomous Driving Scene Segmentation +1

Warped Convolutional Networks: Bridge Homography to sl(3) algebra by Group Convolution

no code implementations23 Jun 2022 Xinrui Zhan, Yang Li, Wenyu Liu, Jianke Zhu

In this paper, we propose Warped Convolution Networks (WCN) to effectively learn and represent the homography by SL(3) group and sl(3) algebra with group convolution.

Homography Estimation Object Tracking

Polar Parametrization for Vision-based Surround-View 3D Detection

1 code implementation22 Jun 2022 Shaoyu Chen, Xinggang Wang, Tianheng Cheng, Qian Zhang, Chang Huang, Wenyu Liu

Based on Polar Parametrization, we propose a surround-view 3D DEtection TRansformer, named PolarDETR.

Inductive Bias Position

Featurized Query R-CNN

1 code implementation13 Jun 2022 Wenqiang Zhang, Tianheng Cheng, Xinggang Wang, Shaoyu Chen, Qian Zhang, Wenyu Liu

The query mechanism introduced in the DETR method is changing the paradigm of object detection and recently there are many query-based methods have obtained strong object detection performance.

Object object-detection +1

Efficient and Robust 2D-to-BEV Representation Learning via Geometry-guided Kernel Transformer

1 code implementation9 Jun 2022 Shaoyu Chen, Tianheng Cheng, Xinggang Wang, Wenming Meng, Qian Zhang, Wenyu Liu

GKT leverages the geometric priors to guide the transformer to focus on discriminative regions and unfolds kernel features to generate BEV representation.

Autonomous Driving Representation Learning

Fast Dynamic Radiance Fields with Time-Aware Neural Voxels

1 code implementation30 May 2022 Jiemin Fang, Taoran Yi, Xinggang Wang, Lingxi Xie, Xiaopeng Zhang, Wenyu Liu, Matthias Nießner, Qi Tian

A multi-distance interpolation method is proposed and applied on voxel features to model both small and large motions.

Temporally Efficient Vision Transformer for Video Instance Segmentation

3 code implementations CVPR 2022 Shusheng Yang, Xinggang Wang, Yu Li, Yuxin Fang, Jiemin Fang, Wenyu Liu, Xun Zhao, Ying Shan

To effectively and efficiently model the crucial temporal information within a video clip, we propose a Temporally Efficient Vision Transformer (TeViT) for video instance segmentation (VIS).

Instance Segmentation Semantic Segmentation +1

TopFormer: Token Pyramid Transformer for Mobile Semantic Segmentation

3 code implementations CVPR 2022 Wenqiang Zhang, Zilong Huang, Guozhong Luo, Tao Chen, Xinggang Wang, Wenyu Liu, Gang Yu, Chunhua Shen

Although vision transformers (ViTs) have achieved great success in computer vision, the heavy computational cost hampers their applications to dense prediction tasks such as semantic segmentation on mobile devices.

Segmentation Semantic Segmentation

Multi-scale Context-aware Network with Transformer for Gait Recognition

1 code implementation ICCV 2021 Duowang Zhu, Xiaohu Huang, Xinggang Wang, Bo Yang, Botao He, Wenyu Liu, Bin Feng

Although gait recognition has drawn increasing research attention recently, since the silhouette differences are quite subtle in spatial domain, temporal feature representation is crucial for gait recognition.

Multiview Gait Recognition Relation

Image-Adaptive YOLO for Object Detection in Adverse Weather Conditions

1 code implementation15 Dec 2021 Wenyu Liu, Gaofeng Ren, Runsheng Yu, Shi Guo, Jianke Zhu, Lei Zhang

Though deep learning-based object detection methods have achieved promising results on the conventional datasets, it is still challenging to locate objects from the low-quality images captured in adverse weather conditions.

Image Enhancement object-detection +1

Deep Level Set for Box-supervised Instance Segmentation in Aerial Images

no code implementations7 Dec 2021 Wentong Li, Yijie Chen, Wenyu Liu, Jianke Zhu

Instead of learning the pairwise affinity, the level set method with the carefully designed energy functions treats the object segmentation as curve evolution, which is able to accurately recover the object's boundaries and prevent the interference from the indistinguishable background and similar objects.

Box-supervised Instance Segmentation Segmentation +1

NeuSample: Neural Sample Field for Efficient View Synthesis

1 code implementation30 Nov 2021 Jiemin Fang, Lingxi Xie, Xinggang Wang, Xiaopeng Zhang, Wenyu Liu, Qi Tian

Neural radiance fields (NeRF) have shown great potentials in representing 3D scenes and synthesizing novel views, but the computational overhead of NeRF at the inference stage is still heavy.

Decoupling Visual-Semantic Feature Learning for Robust Scene Text Recognition

no code implementations24 Nov 2021 Changxu Cheng, Bohan Li, Qi Zheng, Yongpan Wang, Wenyu Liu

As a result, the learning of semantic features is prone to have a bias on the limited vocabulary of the training set, which is called vocabulary reliance.

Decoder Scene Text Recognition

What Makes for Hierarchical Vision Transformer?

no code implementations5 Jul 2021 Yuxin Fang, Xinggang Wang, Rui Wu, Wenyu Liu

Recent studies indicate that hierarchical Vision Transformer with a macro architecture of interleaved non-overlapped window-based self-attention \& shifted-window operation is able to achieve state-of-the-art performance in various visual recognition tasks, and challenges the ubiquitous convolutional neural networks (CNNs) using densely slid kernels.

Instance Segmentation object-detection +3

Tracking Instances as Queries

1 code implementation22 Jun 2021 Shusheng Yang, Yuxin Fang, Xinggang Wang, Yu Li, Ying Shan, Bin Feng, Wenyu Liu

Recently, query based deep networks catch lots of attention owing to their end-to-end pipeline and competitive results on several fundamental computer vision tasks, such as object detection, semantic segmentation, and instance segmentation.

Instance Segmentation object-detection +4

You Only Look at One Sequence: Rethinking Transformer in Vision through Object Detection

2 code implementations NeurIPS 2021 Yuxin Fang, Bencheng Liao, Xinggang Wang, Jiemin Fang, Jiyang Qi, Rui Wu, Jianwei Niu, Wenyu Liu

Can Transformer perform 2D object- and region-level recognition from a pure sequence-to-sequence perspective with minimal knowledge about the 2D spatial structure?

Object object-detection +1

Instances as Queries

5 code implementations ICCV 2021 Yuxin Fang, Shusheng Yang, Xinggang Wang, Yu Li, Chen Fang, Ying Shan, Bin Feng, Wenyu Liu

The key insight of QueryInst is to leverage the intrinsic one-to-one correspondence in object queries across different stages, as well as one-to-one correspondence between mask RoI features and object queries in the same stage.

Instance Segmentation Object +4

Crossover Learning for Fast Online Video Instance Segmentation

1 code implementation ICCV 2021 Shusheng Yang, Yuxin Fang, Xinggang Wang, Yu Li, Chen Fang, Ying Shan, Bin Feng, Wenyu Liu

For temporal information modeling in VIS, we present a novel crossover learning scheme that uses the instance feature in the current frame to pixel-wisely localize the same instance in other frames.

Instance Segmentation Semantic Segmentation +2

Scene Text Retrieval via Joint Text Detection and Similarity Learning

1 code implementation CVPR 2021 Hao Wang, Xiang Bai, Mingkun Yang, Shenggao Zhu, Jing Wang, Wenyu Liu

Such a task is usually realized by matching a query text to the recognized words, outputted by an end-to-end scene text spotter.

Scene Text Detection Text Detection +2

Weakly-supervised Instance Segmentation via Class-agnostic Learning with Salient Images

no code implementations CVPR 2021 Xinggang Wang, Jiapei Feng, Bin Hu, Qi Ding, Longjin Ran, Xiaoxin Chen, Wenyu Liu

Humans have a strong class-agnostic object segmentation ability and can outline boundaries of unknown objects precisely, which motivates us to propose a box-supervised class-agnostic object segmentation (BoxCaseg) based solution for weakly-supervised instance segmentation.

Ranked #5 on Box-supervised Instance Segmentation on COCO test-dev (using extra training data)

Box-supervised Instance Segmentation Multi-Task Learning +5

Half-Real Half-Fake Distillation for Class-Incremental Semantic Segmentation

no code implementations2 Apr 2021 Zilong Huang, Wentian Hao, Xinggang Wang, Mingyuan Tao, Jianqiang Huang, Wenyu Liu, Xian-Sheng Hua

Despite their success for semantic segmentation, convolutional neural networks are ill-equipped for incremental learning, \ie, adapting the original segmentation model as new classes are available but the initial training data is not retained.

Class-Incremental Semantic Segmentation Diversity +2

Learning to Focus: Cascaded Feature Matching Network for Few-shot Image Recognition

no code implementations13 Jan 2021 Mengting Chen, Xinggang Wang, Heng Luo, Yifeng Geng, Wenyu Liu

By applying the proposed feature matching block in different layers of the few-shot recognition network, multi-scale information among the compared images can be incorporated into the final cascaded matching feature, which boosts the recognition performance further and generalizes better by learning on relationships.

Few-Shot Learning

ResizeMix: Mixing Data with Preserved Object Information and True Labels

1 code implementation21 Dec 2020 Jie Qin, Jiemin Fang, Qian Zhang, Wenyu Liu, Xingang Wang, Xinggang Wang

Especially, CutMix uses a simple but effective method to improve the classifiers by randomly cropping a patch from one image and pasting it on another image.

Data Augmentation Image Classification +3

Learning Global Structure Consistency for Robust Object Tracking

no code implementations26 Aug 2020 Bi Li, Chengquan Zhang, Zhibin Hong, Xu Tang, Jingtuo Liu, Junyu Han, Errui Ding, Wenyu Liu

Unlike many existing trackers that focus on modeling only the target, in this work, we consider the \emph{transient variations of the whole scene}.

Object Visual Object Tracking

Boundary-preserving Mask R-CNN

1 code implementation ECCV 2020 Tianheng Cheng, Xinggang Wang, Lichao Huang, Wenyu Liu

Besides, it is not surprising to observe that BMask R-CNN obtains more obvious improvement when the evaluation criterion requires better localization (e. g., AP$_{75}$) as shown in Fig. 1.

Instance Segmentation Object +1

Deep multi-metric learning for text-independent speaker verification

1 code implementation17 Jul 2020 Jiwei Xu, Xinggang Wang, Bin Feng, Wenyu Liu

Text-independent speaker verification is an important artificial intelligence problem that has a wide spectrum of applications, such as criminal investigation, payment certification, and interest-based customer services.

Metric Learning Text-Independent Speaker Verification +1

Maximum Entropy Regularization and Chinese Text Recognition

no code implementations9 Jul 2020 Changxu Cheng, Wuheng Xu, Xiang Bai, Bin Feng, Wenyu Liu

Chinese text recognition is more challenging than Latin text due to the large amount of fine-grained Chinese characters and the great imbalance over classes, which causes a serious overfitting problem.

Fine-Grained Image Classification

FNA++: Fast Network Adaptation via Parameter Remapping and Architecture Search

2 code implementations21 Jun 2020 Jiemin Fang, Yuzhu Sun, Qian Zhang, Kangjian Peng, Yuan Li, Wenyu Liu, Xinggang Wang

In this paper, we propose a Fast Network Adaptation (FNA++) method, which can adapt both the architecture and parameters of a seed network (e. g. an ImageNet pre-trained network) to become a network with different depths, widths, or kernel sizes via a parameter remapping technique, making it possible to use NAS for segmentation and detection tasks a lot more efficiently.

Image Classification Neural Architecture Search +5

FairMOT: On the Fairness of Detection and Re-Identification in Multiple Object Tracking

33 code implementations4 Apr 2020 Yifu Zhang, Chunyu Wang, Xinggang Wang, Wen-Jun Zeng, Wenyu Liu

Formulating MOT as multi-task learning of object detection and re-ID in a single network is appealing since it allows joint optimization of the two tasks and enjoys high computation efficiency.

 Ranked #1 on Multi-Object Tracking on 2DMOT15 (using extra training data)

Fairness Multi-Object Tracking +4

Deep Learning-based Detection for COVID-19 from Chest CT using Weak Label

1 code implementation medRxiv 2020 Chuansheng Zheng, Xianbo Deng, Qing Fu, Qiang Zhou, Jiapei Feng, Hui Ma, Wenyu Liu, Xinggang Wang

Our weakly-supervised deep learning model can accurately predict the COVID-19 infectious probability in chest CT volumes without the need for annotating the lesions for training.

COVID-19 Diagnosis Deep Learning +1

AlignSeg: Feature-Aligned Segmentation Networks

1 code implementation24 Feb 2020 Zilong Huang, Yunchao Wei, Xinggang Wang, Wenyu Liu, Thomas S. Huang, Humphrey Shi

Aggregating features in terms of different convolutional blocks or contextual embeddings has been proven to be an effective way to strengthen feature representations for semantic segmentation.

Segmentation Semantic Segmentation

Fast Neural Network Adaptation via Parameter Remapping and Architecture Search

no code implementations ICLR 2020 Jiemin Fang, Yuzhu Sun, Kangjian Peng, Qian Zhang, Yuan Li, Wenyu Liu, Xinggang Wang

In our experiments, we conduct FNA on MobileNetV2 to obtain new networks for both segmentation and detection that clearly out-perform existing networks designed both manually and by NAS.

Image Classification Neural Architecture Search +4

Diversity Transfer Network for Few-Shot Learning

1 code implementation31 Dec 2019 Mengting Chen, Yuxin Fang, Xinggang Wang, Heng Luo, Yifeng Geng, Xin-Yu Zhang, Chang Huang, Wenyu Liu, Bo wang

The learning problem of the sample generation (i. e., diversity transfer) is solved via minimizing an effective meta-classification loss in a single-stage network, instead of the generative loss in previous works.

Diversity Few-Shot Learning

Patch Aggregator for Scene Text Script Identification

no code implementations9 Dec 2019 Changxu Cheng, Qiuhui Huang, Xiang Bai, Bin Feng, Wenyu Liu

Script identification in the wild is of great importance in a multi-lingual robust-reading system.

Clustering

All You Need Is Boundary: Toward Arbitrary-Shaped Text Spotting

no code implementations21 Nov 2019 Hao Wang, Pu Lu, HUI ZHANG, Mingkun Yang, Xiang Bai, Yongchao Xu, Mengchao He, Yongpan Wang, Wenyu Liu

Recently, end-to-end text spotting that aims to detect and recognize text from cluttered images simultaneously has received particularly growing interest in computer vision.

Instance Segmentation Scene Text Detection +3

Deep High-Resolution Representation Learning for Visual Recognition

42 code implementations20 Aug 2019 Jingdong Wang, Ke Sun, Tianheng Cheng, Borui Jiang, Chaorui Deng, Yang Zhao, Dong Liu, Yadong Mu, Mingkui Tan, Xinggang Wang, Wenyu Liu, Bin Xiao

High-resolution representations are essential for position-sensitive vision problems, such as human pose estimation, semantic segmentation, and object detection.

 Ranked #1 on Object Detection on COCO test-dev (Hardware Burden metric, using extra training data)

Dichotomous Image Segmentation Face Alignment +7

DeepExposure: Learning to Expose Photos with Asynchronously Reinforced Adversarial Learning

no code implementations NeurIPS 2018 Runsheng Yu, Wenyu Liu, Yasen Zhang, Zhi Qu, Deli Zhao, Bo Zhang

Based on these sub-images, a local exposure for each sub-image is automatically learned by virtue of policy network sequentially while the reward of learning is globally designed for striking a balance of overall exposures.

Reinforcement Learning

CCNet: Criss-Cross Attention for Semantic Segmentation

4 code implementations ICCV 2019 Zilong Huang, Xinggang Wang, Yunchao Wei, Lichao Huang, Humphrey Shi, Wenyu Liu, Thomas S. Huang

Compared with the non-local block, the proposed recurrent criss-cross attention module requires 11x less GPU memory usage.

Ranked #7 on Semantic Segmentation on FoodSeg103 (using extra training data)

Computational Efficiency Human Parsing +8

Weakly Supervised Region Proposal Network and Object Detection

no code implementations ECCV 2018 Peng Tang, Xinggang Wang, Angtian Wang, Yongluan Yan, Wenyu Liu, Junzhou Huang, Alan Yuille

The Convolutional Neural Network (CNN) based region proposal generation method (i. e. region proposal network), trained using bounding box annotations, is an essential component in modern fully supervised object detectors.

Object object-detection +2

Mancs: A Multi-task Attentional Network with Curriculum Sampling for Person Re-identification

no code implementations ECCV 2018 Cheng Wang, Qian Zhang, Chang Huang, Wenyu Liu, Xinggang Wang

We propose a novel deep network called Mancs that solves the person re-identification problem from the following aspects: fully utilizing the attention mechanism for the person misalignment problem and properly sampling for the ranking loss to obtain more stable person representation.

Person Re-Identification

PCL: Proposal Cluster Learning for Weakly Supervised Object Detection

4 code implementations9 Jul 2018 Peng Tang, Xinggang Wang, Song Bai, Wei Shen, Xiang Bai, Wenyu Liu, Alan Yuille

The iterative instance classifier refinement is implemented online using multiple streams in convolutional neural networks, where the first is an MIL network and the others are for instance classifier refinement supervised by the preceding one.

Multiple Instance Learning Object +3

Learning to Update for Object Tracking with Recurrent Meta-learner

no code implementations19 Jun 2018 Bi Li, Wenxuan Xie, Wen-Jun Zeng, Wenyu Liu

Generally, model update is formulated as an online learning problem where a target model is learned over the online training set.

Meta-Learning Visual Object Tracking +1

Weakly-Supervised Semantic Segmentation Network With Deep Seeded Region Growing

1 code implementation CVPR 2018 Zilong Huang, Xinggang Wang, Jiasi Wang, Wenyu Liu, Jingdong Wang

Inspired by the traditional image segmentation methods of seeded region growing, we propose to train a semantic segmentation network starting from the discriminative regions and progressively increase the pixel-level supervision using by seeded region growing.

Ranked #39 on Weakly-Supervised Semantic Segmentation on COCO 2014 val (using extra training data)

Image Segmentation Segmentation +2

Object Detection in Videos by High Quality Object Linking

no code implementations30 Jan 2018 Peng Tang, Chunyu Wang, Xinggang Wang, Wenyu Liu, Wen-Jun Zeng, Jingdong Wang

In particular, our method improves results by 8. 8% over the static image detector for fast moving objects.

General Classification Object +3

Auto-Encoder Guided GAN for Chinese Calligraphy Synthesis

no code implementations27 Jun 2017 Pengyuan Lyu, Xiang Bai, Cong Yao, Zhen Zhu, Tengteng Huang, Wenyu Liu

In this paper, we investigate the Chinese calligraphy synthesis problem: synthesizing Chinese calligraphy images with specified style from standard font(eg.

Image-to-Image Translation Translation

Point Linking Network for Object Detection

no code implementations12 Jun 2017 Xinggang Wang, Kaibing Chen, Zilong Huang, Cong Yao, Wenyu Liu

The deep ConvNets based object detectors mainly focus on regressing the coordinates of bounding box, e. g., Faster-R-CNN, YOLO and SSD.

Object object-detection +1

Deep Patch Learning for Weakly Supervised Object Classification and Discovery

1 code implementation6 May 2017 Peng Tang, Xinggang Wang, Zilong Huang, Xiang Bai, Wenyu Liu

Patch-level image representation is very important for object classification and detection, since it is robust to spatial transformation, scale variation, and cluttered background.

Classification General Classification +3

Multiple Instance Detection Network with Online Instance Classifier Refinement

4 code implementations CVPR 2017 Peng Tang, Xinggang Wang, Xiang Bai, Wenyu Liu

We propose a novel online instance classifier refinement algorithm to integrate MIL and the instance classifier refinement procedure into a single deep network, and train the network end-to-end with only image-level supervision, i. e., without object location information.

Multiple Instance Learning Object +3

TextBoxes: A Fast Text Detector with a Single Deep Neural Network

3 code implementations21 Nov 2016 Minghui Liao, Baoguang Shi, Xiang Bai, Xinggang Wang, Wenyu Liu

This paper presents an end-to-end trainable fast scene text detector, named TextBoxes, which detects scene text with both high accuracy and efficiency in a single network forward pass, involving no post-process except for a standard non-maximum suppression.

Revisiting Multiple Instance Neural Networks

no code implementations8 Oct 2016 Xinggang Wang, Yongluan Yan, Peng Tang, Xiang Bai, Wenyu Liu

We propose a new multiple instance neural network to learn bag representations, which is different from the existing multiple instance neural networks that focus on estimating instance label.

Multiple Instance Learning Weakly-supervised Learning

Deep FisherNet for Object Classification

no code implementations31 Jul 2016 Peng Tang, Xinggang Wang, Baoguang Shi, Xiang Bai, Wenyu Liu, Zhuowen Tu

Our proposed FisherNet combines convolutional neural network training and Fisher Vector encoding in a single end-to-end structure.

Classification Computational Efficiency +3

Deep Regression for Face Alignment

no code implementations18 Sep 2014 Baoguang Shi, Xiang Bai, Wenyu Liu, Jingdong Wang

In this paper, we present a deep regression approach for face alignment.

Face Alignment regression

Strokelets: A Learned Multi-Scale Representation for Scene Text Recognition

no code implementations CVPR 2014 Cong Yao, Xiang Bai, Baoguang Shi, Wenyu Liu

Driven by the wide range of applications, scene text detection and recognition have become active research topics in computer vision.

Scene Text Detection Scene Text Recognition +1

Fusion with Diffusion for Robust Visual Tracking

no code implementations NeurIPS 2012 Yu Zhou, Xiang Bai, Wenyu Liu, Longin J. Latecki

A key feature of our approach is that the time complexity of the dif-fusion on the TPG is the same as the diffusion process on each of the original graphs, Moreover, it is not necessary to explicitly construct the TPG in our frame-work.

Clustering Visual Tracking

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