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<h1 align="center">Transformer-Based Visual Segmentation: A Survey</h1> T-PAMI, 2024 <a href="https://lxtgh.github.io/">Xiangtai Li (Project Lead)</a> · <a href="https://henghuiding.github.io/">Henghui Ding</a> · <a href="https://yuanhaobo.me/">Haobo Yuan</a> · <a href="http://zhangwenwei.cn/">Wenwei Zhang</a> · <a href="https://sites.google.com/view/guangliangcheng">Guangliang Cheng</a> <a href="https://oceanpang.github.io/">Jiangmiao Pang</a> . <a href="https://chenkai.site/">Kai Chen</a> . <a href="https://liuziwei7.github.io/">Ziwei Liu</a> . <a href="https://www.mmlab-ntu.com/person/ccloy/">Chen Change Loy</a> <a href='https://arxiv.org/abs/2304.09854'> <img src='https://img.shields.io/badge/Paper-PDF-green?style=flat&logo=arXiv&logoColor=green' alt='arXiv PDF'> </a> <a href='https://www.mmlab-ntu.com/project/seg_survey/index.html' style='padding-left: 0.5rem;'> <img src='https://img.shields.io/badge/Project-Page-blue?style=flat&logo=Google%20chrome&logoColor=blue' alt='S-Lab Project Page'> </a> <a href='https://ieeexplore.ieee.org/abstract/document/10613466'> <img src='https://img.shields.io/badge/TPAMI-PDF-blue?style=flat&logo=IEEE&logoColor=green' alt='TPAMI PDF'> </a>

This repo is used for recording, tracking, and benchmarking several recent transformer-based visual segmentation methods, as a supplement to our survey.
If you find any work missing or have any suggestions (papers, implementations and other resources), feel free to pull requests. We will add the missing papers to this repo ASAP.

🔥News

[-] Accepted by T-PAMI-2024.

[-] Add several CVPR-24 works on this directions. 2024-03. You are welcome to add your CVPR works in our repos!

[-] The third version is on arxiv. survey More benchmark and methods are included!!. 2023-12.

[-] The second draft is on arxiv. 2023-06.

🔥Highlight!!

[1], Previous transformer surveys divide the methods by the different tasks and settings. Different from them, we re-visit and group the existing transformer-based methods from the technical perspective.

[2], We survey the methods in two parts: one for the mainstream tasks based on DETR-like meta-architecture, the other for related directions according to the tasks.

[3], We further re-benchmark several representative works on image semantic segmentation and panoptic segmentation datasets.

[4], We also include the query-based detection transformers since both segmentation and detection tasks are unified by object query.

Introduction

In this survey, we present the first detailed survey on Transformer-Based Segmentation.

Alt Text

Methods: A Survey

Meta-Architecture

Year	Venue	Acronym	Paper Title	Code/Project
2020	ECCV	DETR	End-to-End Object Detection with Transformers	Code
2021	ICLR	Deformable DETR	Deformable DETR: Deformable Transformers for End-to-End Object Detection	Code
2021	CVPR	Max-Deeplab	MaX-DeepLab: End-to-End Panoptic Segmentation with Mask Transformers	Code
2021	NeurIPS	MaskFormer	MaskFormer: Per-Pixel Classification is Not All You Need for Semantic Segmentation	Code
2021	NeurIPS	K-Net	K-Net: Towards Unified Image Segmentation	Code
2023	CVPR	Lite-DETR	Lite detr: An interleaved multi-scale encoder for efficient detr	Code

Strong Representation

Better ViTs Design

Year	Venue	Acronym	Paper Title	Code/Project
2021	CVPR	SETR	Rethinking Semantic Segmentation from a Sequence-to-Sequence Perspective with Transformers	Code
2021	ICCV	MviT-V1	Multiscale vision transformers	Code
2022	CVPR	MviT-V2	MViTv2: Improved Multiscale Vision Transformers for Classification and Detection	Code
2021	NeurIPS	XCIT	Xcit: Crosscovariance image transformers	Code
2021	ICCV	Pyramid VIT	Pyramid vision transformer: A versatile backbone for dense prediction without convolutions	Code
2021	ICCV	CorssViT	CrossViT: Cross-Attention Multi-Scale Vision Transformer for Image Classification	Code
2021	ICCV	CoaT	Co-Scale Conv-Attentional Image Transformers	Code
2022	CVPR	MPViT	MPViT: Multi-Path Vision Transformer for Dense Prediction	Code
2022	NeurIPS	SegViT	SegViT: Semantic Segmentation with Plain Vision Transformers	Code
2022	arxiv	RSSeg	Representation Separation for SemanticSegmentation with Vision Transformers	N/A

Hybrid CNNs/Transformers/MLPs

Year	Venue	Acronym	Paper Title	Code/Project
2021	ICCV	Swin	Swin transformer: Hierarchical vision transformer using shifted windows	Code
2022	CVPR	Swin-v2	Swin Transformer V2: Scaling Up Capacity and Resolution	Code
2021	NeurIPS	Segformer	SegFormer: Simple and Efficient Design for Semantic Segmentation with Transformers	Code
2022	CVPR	CMT	CMT: Convolutional Neural Networks Meet Vision Transformers	Code
2021	NeurIPS	Twins	Twins: Revisiting the Design of Spatial Attention in Vision Transformers	Code
2021	ICCV	CvT	CvT: Introducing Convolutions to Vision Transformers	Code
2021	NeurIPS	Vitae	Vitae: Vision transformer advanced by exploring intrinsic inductive bias	Code
2022	CVPR	ConvNext	A ConvNet for the 2020s	Code
2022	NeurIPS	SegNext	SegNeXt:Rethinking Convolutional Attention Design for Semantic Segmentation	Code
2022	CVPR	PoolFormer	PoolFormer: MetaFormer Is Actually What You Need for Vision	Code
2023	ICLR	STM	Demystify Transformers & Convolutions in Modern Image Deep Networks	Code

Self-Supervised Learning

Year	Venue	Acronym	Paper Title	Code/Project
2021	ICCV	MOCOV3	An Empirical Study of Training Self-Supervised Vision Transformers	Code
2022	ICLR	Beit	Beit: Bert pre-training of image transformers	Code
2022	CVPR	MaskFeat	Masked Feature Prediction for Self-Supervised Visual Pre-Training	Code
2022	CVPR	MAE	Masked Autoencoders Are Scalable Vision Learners	Code
2022	NeurIPS	ConvMAE	MCMAE: Masked Convolution Meets Masked Autoencoders	Code
2023	ICLR	Spark	SparK: the first successful BERT/MAE-style pretraining on any convolutional networks	Code
2022	CVPR	FLIP	Scaling Language-Image Pre-training via Masking	Code
2023	arxiv	ConvNeXt V2	ConvNeXt V2: Co-designing and Scaling ConvNets with Masked Autoencoders	Code

Interaction Design in Decoder

Improved Cross Attention Design

Year	Venue	Acronym	Paper Title	Code/Project
2021	CVPR	Sparse R-CNN	Sparse R-CNN: End-to-End Object Detection with Learnable Proposals	Code
2022	CVPR	AdaMixer	AdaMixer: A Fast-Converging Query-Based Object Detector	Code
2021	CVPR	MaX-DeepLab	MaX-DeepLab: End-to-End Panoptic Segmentation with Mask Transformers	Code
2021	NeurIPS	K-Net	K-Net: Towards Unified Image Segmentation	Code
2022	CVPR	Mask2Former	Masked-attention Mask Transformer for Universal Image Segmentation	Code
2022	ECCV	kMaX-DeepLab	k-means Mask Transformer	Code
2021	ICCV	QueryInst	Instances as queries	Code
2021	arxiv	ISTR	ISTR: End-to-End Instance Segmentation via Transformers	Code
2021	NeurIPS	SOLQ	Solq: Segmenting objects by learning queries	Code
2022	CVPR	Panoptic Segformer	Panoptic SegFormer: Delving Deeper into Panoptic Segmentation with Transformers	Code
2022	CVPR	CMT-Deeplab	CMT-DeepLab: Clustering Mask Transformers for Panoptic Segmentation	N/A
2022	CVPR	SparseInst	Sparse Instance Activation for Real-Time Instance Segmentation	Code
2022	CVPR	SAM-DETR	Accelerating DETR Convergence via Semantic-Aligned Matching	Code
2021	ICCV	SMCA-DETR	Fast Convergence of DETR with Spatially Modulated Co-Attention	Code
2021	BMVC	ACT-DETR	End-to-End Object Detection with Adaptive Clustering Transformer	Code
2021	ICCV	Dynamic DETR	Dynamic DETR: End-to-End Object Detection with Dynamic Attention	N/A
2022	ICLR	Sparse DETR	Sparse DETR: Efficient End-to-End Object Detection with Learnable Sparsity	Code
2023	CVPR	FastInst	FastInst: A Simple Query-Based Model for Real-Time Instance Segmentation	Code

Spatial-Temporal Cross Attention Design

Year	Venue	Acronym	Paper Title	Code/Project
2021	CVPR	VisTR	VisTR: End-to-End Video Instance Segmentation with Transformers	Code
2021	NeurIPS	IFC	Video instance segmentation using inter-frame communication transformers	Code
2022	CVPR	SlotVPS	Slot-VPS: Object-centric Representation Learning for Video Panoptic Segmentation	N/A
2022	CVPR	TubeFormer-DeepLab	TubeFormer-DeepLab: Video Mask Transformer	N/A
2022	CVPR	Video K-Net	Video K-Net: A Simple, Strong, and Unified Baseline for Video Segmentation	Code
2022	CVPR	TeViT	Temporally efficient vision transformer for video instance segmentation	Code
2022	ECCV	Seqformer	SeqFormer: Sequential Transformer for Video Instance Segmentation	Code
2022	arxiv	Mask2Former-VIS	Mask2Former for Video Instance Segmentation	Code
2022	PAMI	TransVOD	TransVOD: End-to-End Video Object Detection with Spatial-Temporal Transformers	Code
2022	NeurIPS	VITA	VITA: Video Instance Segmentation via Object Token Association	Code

Optimizing Object Query

Adding Position Information into Query

Year	Venue	Acronym	Paper Title	Code/Project
2021	ICCV	Conditional-DETR	Conditional DETR for Fast Training Convergence	Code
2022	arxiv	Conditional-DETR-v2	Conditional detr v2:Efficient detection transformer with box queries	Code
2022	AAAI	Anchor DETR	Anchor detr: Query design for transformer-based detector	Code
2022	ICLR	DAB-DETR	DAB-DETR: Dynamic Anchor Boxes are Better Queries for DETR	Code
2021	arxiv	Efficient DETR	Efficient detr: improving end-to-end object detector with dense prior	N/A

Adding Extra Supervision into Query

Year	Venue	Acronym	Paper Title	Code/Project
2022	ECCV	DE-DETR	Towards Data-Efficient Detection Transformers	Code
2022	CVPR	DN-DETR	Dndetr:Accelerate detr training by introducing query denoising	Code
2023	ICLR	DINO	DINO: DETR with Improved DeNoising Anchor Boxes for End-to-End Object Detection	Code
2023	CVPR	Mp-Former	Mp-former: Mask-piloted transformer for image segmentation	Code
2023	CVPR	Mask-DINO	Mask DINO: Towards A Unified Transformer-based Framework for Object Detection and Segmentation	Code
2022	NeurIPS	N/A	Learning equivariant segmentation with instance-unique querying	Code
2023	CVPR	H-DETR	DETRs with Hybrid Matching	Code
2023	ICCV	Group-DETR	Group detr: Fast detr training with group-wise one-to-many assignment	N/A
2023	ICCV	Co-DETR	Detrs with collaborative hybrid assignments training	Code

Using Query For Association

Query as Instance Association

Year	Venue	Acronym	Paper Title	Code/Project
2022	CVPR	TrackFormer	TrackFormer: Multi-Object Tracking with Transformer	Code
2021	arxiv	TransTrack	TransTrack: Multiple Object Tracking with Transformer	Code
2022	ECCV	MOTR	MOTR: End-to-End Multiple-Object Tracking with TRansformer	Code
2022	NeurIPS	MinVIS	MinVIS: A Minimal Video Instance Segmentation Framework without Video-based Training	Code
2022	ECCV	IDOL	In defense of online models for video instance segmentation	Code
2022	CVPR	Video K-Net	Video K-Net: A Simple, Strong, and Unified Baseline for Video Segmentation	Code
2023	CVPR	GenVIS	A Generalized Framework for Video Instance Segmentation	Code
2023	ICCV	Tube-Link	Tube-Link: A Flexible Cross Tube Framework for Universal Video Segmentation	Code
2023	ICCV	CTVIS	CTVIS: Consistent Training for Online Video Instance Segmentation	Code
2023	CVPR-W	Video-kMaX	Video-kMaX: A Simple Unified Approach for Online and Near-Online Video Panoptic Segmentation	N/A

Query as Linking Multi-Tasks

Year	Venue	Acronym	Paper Title	Code/Project
2022	ECCV	Panoptic-PartFormer	Panoptic-PartFormer: Learning a Unified Model for Panoptic Part Segmentation	Code
2022	ECCV	PolyphonicFormer	PolyphonicFormer: Unified Query Learning for Depth-aware Video Panoptic Segmentation	Code
2022	CVPR	PanopticDepth	Panopticdepth: A unified framework for depth-aware panoptic segmentation	Code
2022	ECCV	Fashionformer	Fashionformer: A simple, effective and unified baseline for human fashion segmentation and recognition	Code
2022	ECCV	InvPT	InvPT: Inverted Pyramid Multi-task Transformer for Dense Scene Understanding	Code
2023	CVPR	UNINEXT	Universal Instance Perception as Object Discovery and Retrieval	Code
2024	CVPR	GLEE	GLEE: General Object Foundation Model for Images and Videos at Scale	Code
2024	CVPR	UniVS	UniVS: Unified and Universal Video Segmentation with Prompts as Queries	Code
2024	CVPR	OMG-Seg	OMG-Seg: Is One Model Good Enough For All Segmentation?	Code

Conditional Query Generation

Conditional Query Fusion on Language Features

Year	Venue	Acronym	Paper Title	Code/Project
2021	ICCV	VLT	Vision-Language Transformer and Query Generation for Referring Segmentation	Code
2022	CVPR	LAVT	Lavt: Language-aware vision transformer for referring image segmentation	Code
2022	CVPR	Restr	Restr:Convolution-free referring image segmentation using transformers	N/A
2022	CVPR	Cris	Cris: Clip-driven referring image segmentation	Code
2022	CVPR	MTTR	End-to-End Referring Video Object Segmentation with Multimodal Transformers	Code
2022	CVPR	LBDT	Language-Bridged Spatial-Temporal Interaction for Referring Video Object Segmentation	Code
2022	CVPR	ReferFormer	Language as queries for referring video object segmentation	Code
2024	CVPR	MaskGrounding	Mask Grounding for Referring Image Segmentation	Code

Conditional Query Fusion on Cross Image Features

Year	Venue	Acronym	Paper Title	Code/Project
2021	NeurIPS	CyCTR	Few-Shot Segmentation via Cycle-Consistent Transformer	Code
2022	CVPR	MatteFormer	MatteFormer: Transformer-Based Image Matting via Prior-Tokens	Code
2022	ECCV	Segdeformer	A Transformer-based Decoder for Semantic Segmentation with Multi-level Context Mining	Code
2022	arxiv	StructToken	StructToken : Rethinking Semantic Segmentation with Structural Prior	N/A
2022	NeurIPS	MM-Former	Mask Matching Transformer for Few-Shot Segmentation	Code
2022	ECCV	AAFormer	Adaptive Agent Transformer for Few-shot Segmentation	N/A
2023	arxiv	ReferenceTwice	Reference Twice: A Simple and Unified Baseline for Few-Shot Instance Segmentation	Code

Tuning Foundation Models

Vision Adapter

Year	Venue	Acronym	Paper Title	Code/Project
2022	CVPR	CoCoOp	Conditional Prompt Learning for Vision-Language Models	Code
2022	ECCV	Tip-Adapter	Tip-Adapter: Training-free Adaption of CLIP for Few-shot Classification	Code
2022	ECCV	EVL	Frozen CLIP Models are Efficient Video Learners	Code
2023	ICLR	ViT-Adapter	Vision Transformer Adapter for Dense Predictions	Code
2022	CVPR	DenseCLIP	DenseCLIP: Language-Guided Dense Prediction with Context-Aware Prompting	Code
2022	CVPR	CLIPSeg	Image Segmentation Using Text and Image Prompts	Code
2023	CVPR	OneFormer	OneFormer: One Transformer to Rule Universal Image Segmentation	Code

Open Vocabulary Learning

Year	Venue	Acronym	Paper Title	Code/Project
2021	CVPR	OVR-CNN	Open-Vocabulary Object Detection Using Captions	Code
2022	ICLR	ViLD	Open-vocabulary Object Detection via Vision and Language Knowledge Distillation	Code
2022	ECCV	Detic	Detecting Twenty-thousand Classes using Image-level Supervision	Code
2022	ECCV	OV-DETR	Open-Vocabulary DETR with Conditional Matching	Code
2023	ICLR	F-VLM	F-VLM: Open-Vocabulary Object Detection upon Frozen Vision and Language Models	Code
2022	ECCV	MViT	Class-agnostic Object Detection with Multi-modal Transformer	Code
2022	ECCV	OpenSeg	Scaling Open-Vocabulary Image Segmentation with Image-Level Labels	Code
2022	ICLR	LSeg	Language-driven Semantic Segmentation	Code
2022	ECCV	SimSeg	A Simple Baseline for Open Vocabulary Semantic Segmentation with Pre-trained Vision-language Model	Code
2022	ECCV	DenseCLIP	Extract Free Dense Labels from CLIP	Code
2021	ICCV	UVO	Unidentified Video Objects: A Benchmark for Dense, Open-World Segmentation	Project
2023	arXiv	CGG	Betrayed-by-Captions: Joint Caption Grounding and Generation for Open Vocabulary Instance Segmentation	Code
2022	TPAMI	ES	Open-World Entity Segmentation	Code
2022	CVPR	OW-DETR	OW-DETR: Open-world Detection Transformer	Code
2023	CVPR	PROB	PROB: Probabilistic Objectness for Open World Object Detection	Code

Related Domains and Beyond

Point Cloud Segmentation

Year	Venue	Acronym	Paper Title	Code/Project
2021	ICCV	Point Transformer	Point Transformer	N/A
2021	CVM	PCT	PCT: Point cloud transformer	Code
2022	CVPR	Stratified Transformer	Stratified Transformer for 3D Point Cloud Segmentation	Code
2022	CVPR	Point-BERT	Point-BERT: Pre-training 3D Point Cloud Transformers with Masked Point Modeling	Code
2022	ECCV	Point-MAE	Masked Autoencoders for Point Cloud Self-supervised Learning	Code
2022	NeurIPS	Point-M2AE	Point-M2AE: Multi-scale Masked Autoencoders for Hierarchical Point Cloud Pre-training	Code
2022	ICRA	Mask3D	Mask3D for 3D Semantic Instance Segmentation	Code
2023	AAAI	SPFormer	Superpoint Transformer for 3D Scene Instance Segmentation	Code
2023	AAAI	PUPS	PUPS: Point Cloud Unified Panoptic Segmentation	N/A

Domain-aware Segmentation

Year	Venue	Acronym	Paper Title	Code/Project
2022	CVPR	DAFormer	DAFormer: Improving Network Architectures and Training Strategies for Domain-Adaptive Semantic Segmentation	Code
2022	ECCV	HRDA	HRDA: Context-Aware High-Resolution Domain-Adaptive Semantic Segmentation	Code
2023	CVPR	MIC	MIC: Masked Image Consistency for Context-Enhanced Domain Adaptation	Code
2021	ACM MM	SFA	Exploring Sequence Feature Alignment for Domain Adaptive Detection Transformers	Code
2023	CVPR	DA-DETR	DA-DETR: Domain Adaptive Detection Transformer with Information Fusion	N/A
2022	ECCV	MTTrans	MTTrans: Cross-Domain Object Detection with Mean-Teacher Transformer	Code
2022	arXiv	Sentence-Seg	The devil is in the labels: Semantic segmentation from sentences	N/A
2023	ICLR	LMSeg	LMSeg: Language-guided Multi-dataset Segmentation	N/A
2022	CVPR	UniDet	Simple multi-dataset detection	Code
2023	CVPR	Detection Hub	Detection Hub: Unifying Object Detection Datasets via Query Adaptation on Language Embedding	N/A
2022	CVPR	WD2	Unifying Panoptic Segmentation for Autonomous Driving	Data
2023	arXiv	TarVIS	TarViS: A Unified Approach for Target-based Video Segmentation	Code

Label and Model Efficient Segmentation

Year	Venue	Acronym	Paper Title	Code/Project
2022	CVPR	MCTformer	Multi-class Token Transformer for Weakly Supervised Semantic Segmentation	Code
2020	CVPR	PCM	Self-supervised Equivariant Attention Mechanism for Weakly Supervised Semantic Segmentation	Code
2022	ECCV	ViT-PCM	Max Pooling with Vision Transformers reconciles class and shape in weakly supervised semantic segmentation	Code
2021	ICCV	DINO	Emerging Properties in Self-Supervised Vision Transformers	Code
2021	BMVC	LOST	Localizing Objects with Self-Supervised Transformers and no Labels	Code
2022	ICLR	STEGO	Unsupervised Semantic Segmentation by Distilling Feature Correspondences	Code
2022	NeurIPS	ReCo	ReCo: Retrieve and Co-segment for Zero-shot Transfer	Code
2022	arXiv	MaskDistill	Discovering Object Masks with Transformers for Unsupervised Semantic Segmentation	N/A
2022	CVPR	FreeSOLO	FreeSOLO: Learning to Segment Objects without Annotations	Code
2023	CVPR	CutLER	Cut and Learn for Unsupervised Object Detection and Instance Segmentation	Code
2022	CVPR	TokenCut	Self-Supervised Transformers for Unsupervised Object Discovery using Normalized Cut	Code
2022	ICLR	MobileViT	MobileViT: Light-weight, General-purpose, and Mobile-friendly Vision Transformer	Code
2023	arXiv	EMO	Rethinking Mobile Block for Efficient Neural Models	Code
2022	CVPR	TopFormer	TopFormer: Token Pyramid Transformer for Mobile Semantic Segmentation	Code
2023	ICLR	SeaFormer	SeaFormer: Squeeze-enhanced Axial Transformer for Mobile Semantic Segmentation	Code

Class Agnostic Segmentation and Tracking

Year	Venue	Acronym	Paper Title	Code/Project
2022	CVPR	Transfiner	Mask Transfiner for High-Quality Instance Segmentation	Code
2022	ECCV	VMT	Video Mask Transfiner for High-Quality Video Instance Segmentation	Code
2022	arXiv	SimpleClick	SimpleClick: Interactive Image Segmentation with Simple Vision Transformers	Code
2023	ICLR	PatchDCT	PatchDCT: Patch Refinement for High Quality Instance Segmentation	Code
2019	ICCV	STM	Video Object Segmentation using Space-Time Memory Networks	Code
2021	NeurIPS	AOT	Associating Objects with Transformers for Video Object Segmentation	Code
2021	NeurIPS	STCN	Rethinking Space-Time Networks with Improved Memory Coverage for Efficient Video Object Segmentation	Code
2022	ECCV	XMem	XMem: Long-Term Video Object Segmentation with an Atkinson-Shiffrin Memory Model	Code
2022	CVPR	PCVOS	Per-Clip Video Object Segmentation	Code
2023	CVPR	N/A	Look Before You Match: Instance Understanding Matters in Video Object Segmentation	N/A

Medical Image Segmentation

Year	Venue	Acronym	Paper Title	Code/Project
2020	BIBM	CellDETR	Attention-Based Transformers for Instance Segmentation of Cells in Microstructures	Code
2021	arXiv	TransUNet	TransUNet: Transformers Make Strong Encoders for Medical Image Segmentation	Code
2022	ECCV Workshop	Swin-Unet	Swin-Unet: Unet-like Pure Transformer for Medical Image Segmentation	Code
2021	MICCAI	TransFuse	TransFuse: Fusing Transformers and CNNs for Medical Image Segmentation	Code
2022	WACV	UNETR	UNETR: Transformers for 3D Medical Image Segmentation	Code

Acknowledgement

If you find our survey and repository useful for your research project, please consider citing our paper:

@article{li2023transformer,
    author={Li, Xiangtai and Ding, Henghui and Zhang, Wenwei and Yuan, Haobo and Cheng, Guangliang and Jiangmiao, Pang and Chen, Kai and Liu, Ziwei and Loy, Chen Change},
    title={Transformer-Based Visual Segmentation: A Survey},
    journal={T-PAMI},
    year={2024}
  }

Contact

xiangtai94@gmail.com (main)

lxtpku@pku.edu.cn

Related Repo For Segmentation and Detection

Attention Model Repo by Min-Hung (Steve) Chen.

Detection Transformer Repo by IDEA.

Open Vocabulary Learning Repo by PKU and NTU.