Wenhai Wang (王文海)
Department of Computer Science and Technology, Nanjing University (NJU)
Address: 163 Xianlin Avenue, Qixia District, Nanjing, China
Email: wangwenhai362 [at] {163.com, smail.nju.edu.cn}

About Me ([GitHub] [Google Scholar] [CV])

I am a PhD candidate at Department of Computer Science and Technology, Nanjing University (NJU). My academic supervisor is Prof. Tong Lu. I received the bachelor's degree from School of Computer Science and Engineering, Nanjing University of Science and Technology (NUST) in 2016.

I work very close with my friends Enze Xie and Xiang Li. My recent works are mainly on scene text detection/recognition, deep neural networks exploration, object detection and instance segmentation.

I am looking for a postdoctoral position or a full-time job. Please feel free to contact me through the email.


  • 2020-10-13: Code of AE TextSpotter is released at here.
  • 2020-09-25: One paper is accepted by NeurIPS 2020.
  • 2020-09-02: Code of PAN is released at here.
  • 2020-07-03: Four papers are accepted by ECCV 2020.
  • 2020-03-10: One paper is accepted by CVPR 2020.
  • 2019-07-23: One paper is accepted by ICCV 2019.
  • 2019-03-15: Two papers are accepted by CVPR 2019.
  • 2018-06-16: One paper is accepted by IJCAI 2018.


  • Oct. 2019 - Mar. 2020, research assistant at the University of Hong Kong (HKU), hosted by Dr. Ping Luo
  • Aug. 2019 - Mar. 2020, research intern at SenseTime Group Limited, hosted by Xuebo Liu and Ding Liang
  • Jun. 2018 - Dec. 2018, research intern at Momenta, hosted by Xiang Li

Selected Publications [Full List]

AE TextSpotter: Learning Visual and Linguistic Representation for Ambiguous Text Spotting
Wenhai Wang, Xuebo Liu, Xiaozhong Ji, Enze Xie, Ding Liang, Zhibo Yang, Tong Lu, Chunhua Shen, Ping Luo
in ECCV, 2020
[Paper] [Dataset] [Code] [BibTex]
We introduce linguistic information to eliminate the ambiguity in text detection.
Efficient and Accurate Arbitrary-Shaped Text Detection with Pixel Aggregation Network
Wenhai Wang*, Enze Xie*, Xiaoge Song, Yuhang Zang, Wenjia Wang, Tong Lu, Gang Yu, Chunhua Shen
in ICCV, 2019
[Paper] [Poster] [Code] [BibTex]
We propose an efficient method for arbitrary-shaped text detection.
Shape Robust Text Detection with Progressive Scale Expansion Network
Wenhai Wang*, Enze Xie*, Xiang Li, Wenbo Hou, Tong Lu, Gang Yu, Shuai Shao
in CVPR, 2019
[Paper] [Poster] [Code] [BibTex]
We proposed a segmentation-based text detector that can precisely detect text instances with arbitrary shapes.
Mixed Link Networks
Wenhai Wang*, Xiang Li*, Jian Yang, Tong Lu
in IJCAI, 2018
[Paper] [Poster] [Code] [BibTex]
We proposed an parameter-efficient convolutional neural networks for image classification.
Generalized Focal Loss: Learning Qualified and Distributed Bounding Boxes for Dense Object Detection
Xiang Li, Wenhai Wang, Lijun Wu, Shuo Chen, Xiaolin Hu, Jun Li, Jinhui Tang, Jian Yang
in NeurIPS, 2020
[Paper] [Code] [BibTex]
We propose the generalized focal loss for learning the improved representations of dense object detector.
PolarMask: Single Shot Instance Segmentation with Polar Representation
Enze Xie*, Peize Sun*, Xiaoge Song*, Wenhai Wang, Chunhua Shen, Ping Luo
in CVPR, 2020 (oral presentation)
[Paper] [Code] [BibTex]
We introduced a Polar Representation to reformulate the instance segmentation problem.
Selective Kernel Networks
Xiang Li, Wenhai Wang, Xiaolin Hu, Jian Yang
in CVPR, 2019
[Paper] [Code] [BibTex]
We proposed a dynamic selection mechanism in convolutional neural networks.


  • ICDAR2019 Robust Reading Challenge on Arbitrary-Shaped Text, Task1, 1st Place.
  • ICDAR2019 Robust Reading Challenge on Large-scale Street View Text with Partial Labeling, Task1, 2nd Place.
  • AI Challenger 2018 Autonomous Driving Perception Task, 2nd Place
  • ACM-ICPC Asia Regional Contest, Silver Medal

Review Services

Journal Reviewer
IEEE Transactions on Multimedia (T-MM)
Conference Reviewer
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2020, 2021
Thirty-fourth Conference on Neural Information Processing Systems (NeurIPS), 2020
International Joint Conference on Artificial Intelligence (IJCAI), 2021
Asian Conference on Computer Vision (ACCV), 2020
IEEE Winter Conference on Applications of Computer Vision (WACV), 2021