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Lang Nie   聂浪

I am currently an Associate Professor at the School of Computer Science, Chongqing University of Posts and Telecommunications (CQUPT), working with Prof. Bin Xiao. Prior to that, I received my B.S. and Ph.D. degrees from the School of Computer Science and Technology, Beijing Jiaotong University (BJTU) in 2019 and 2025, respectively, under the supervision of Prof. Chunyu Lin and Prof. Yao Zhao.

My research interests span a broad range of topics in computer vision, and I welcome opportunities for collaboration. Please feel free to contact me by email.

Also, here’s a quick link to my Chinese homepage at CQUPT.

  nielang [at] cqupt.edu.cn             Google Scholar             Github

Research Interests

My research focuses on learning-based warping, multi-view geometry, and panoramic understanding. The specific interests are listed below:

1) Single-view warping:

Wide-angle rectification; image rectangling; rolling shutter correction; rotation correction; image retargeting

1) Multi-view geometry:

Image/Video stitching; homography estimation; video stabilization; visual localization; 3D reconstruction

3) Panoramic scene understanding:

Panoramic object detection; semantic segmentation; depth estimation; layout estimation; keypoint detection

Selected Preprints

Deep Learning for Camera Calibration and Beyond: A Survey
Kang Liao, Lang Nie, Shujuan Huang, Chunyu Lin, Jing Zhang, Yao Zhao, Moncef Gabbouj, Dacheng Tao
[Paper] [Project Page]

Selected Publications

UniStitch: Unifying Semantic and Geometric Features for Image Stitching
Yuan Mei, Lang Nie (Project Lead), Kang Liao, Yunqiu Xu, Chunyu Lin, and Bin Xiao
European Conference on Computer Vision (ECCV 2026)
[Paper] [Project Page] [Code] [Video]

Geometry-Guided Reinforcement Learning for Multi-view Consistent 3D Scene Editing
Jiyuan Wang, Chunyu Lin, Lei Sun, Zhi Cao, Yuyang Yin, Lang Nie, Zhenlong Yuan, Xiangxiang Chu, Yunchao Wei, Kang Liao, Guosheng Lin
European Conference on Computer Vision (ECCV 2026)
[Paper] [Project Page] [Code]

StableMotion: One-Step Motion Estimation with Diffusion Prior
Ziyi Wang, Haipeng Li, Lin Sui, Tianhao Zhou, Hai Jiang, Lang Nie, Bing Zeng, Shuaicheng Liu
IEEE Transactions on Image Processing (TIP 2026)
[Paper] [Code]

SFast-Rotating Panoramic HDR Reconstruction from Single-Second Spikes
Yuzhu Tao, Yakun Chang, Shikui Wei, Lang Nie, Qingwen Li, Bo Li, Boxin Shi, Yao Zhao
ACM International Conference on Multimedia (ACM MM 2026)
[Paper] [Code]

From Editor to Dense Geometry Estimator
Jiyuan Wang, Chunyu Lin, Lei Sun, Rongying Liu, Lang Nie, Mingxing Li, Kang Liao, Xiangxiang Chu
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR 2026)
[Project Page] [Paper] [Code]

Robust Image Stitching with Optimal Plane
Lang Nie*, Yuan Mei*, Kang Liao, Yunqiu Xu, Chunyu Lin, Bin Xiao (* Equal contribution)
IEEE Transactions on Visualization and Computer Graphics (TVCG 2026)
[Paper] [Code]

Revisiting 360 Depth Estimation with PanoGabor: A New Fusion Perspective
Zhijie Shen, Chunyu Lin, Lang Nie, Kang Liao, Weisi Lin, Yao Zhao
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI 2026)
[Paper] [Code]

Beyond Wide-Angle Images: Structure-to-Detail Video Portrait Correction via Unsupervised Spatiotemporal Adaptation
Wenbo Nie, Lang Nie (Project Lead), Chunyu Lin, Jingwen Chen, Ke Xing, Jiyuan Wang, Kang Liao
The 40th Annual AAAI Conference on Artificial Intelligence (AAAI 2026)
[Paper] [Video]

StabStitch++: Unsupervised Online Video Stitching with Spatiotemporal Bidirectional Warps
Lang Nie, Chunyu Lin, Kang Liao, Yun Zhang, Shuaicheng Liu, Yao Zhao
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI 2025)
[Paper] [Code] [Video]

Jasmine: Harnessing Diffusion Prior for Self-supervised Depth Estimation
JiYuan Wang, Chunyu Lin, Cheng Guan, Lang Nie, Jing He, Haodong Li, Kang Liao, Yao Zhao
The Thirty-ninth Annual Conference on Neural Information Processing Systems (NeurIPS 2025)
[Paper] [Code]

PixelStitch: Structure-Preserving Pixel-Wise Bidirectional Warps for Unsupervised Image Stitching
Hengzhe Jin, Lang Nie (Project Lead), Chunyu Lin, Xiaomei Feng, Yao Zhao
International Conference on Computer Vision (ICCV 2025)
[Paper] [Code]

Lifting the Structural Morphing for Wide-Angle Images Rectification: Unified Content and Boundary Modeling
Wenting Luan, Siqi Lu, Yongbin Zheng, Wanying Xu, Lang Nie, Zongtan Zhou, Kang Liao
International Conference on Computer Vision (ICCV 2025)
[Paper] [Code]

Semi-Supervised Coupled Thin-Plate Spline Model for Rotation Correction and Beyond
Lang Nie, Chunyu Lin, Kang Liao, Shuaicheng Liu, Yao Zhao
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI 2024)
[Paper] [Code]

360 Layout Estimation via Orthogonal Planes Disentanglement and Multi-view Geometric Consistency Perception
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI 2024)
Zhijie Shen, Chunyu Lin, Junsong Zhang, Lang Nie, Kang Liao, Yao Zhao
[Paper] [Code]

Eliminating Warping Shakes for Unsupervised Online Video Stitching
Lang Nie, Chunyu Lin, Kang Liao, Yun Zhang, Shuaicheng Liu, Rui Ai, Yao Zhao
European Conference on Computer Vision (ECCV 2024)
[Paper] [Code] [Video]

Digging into contrastive learning for robust depth estimation with diffusion models
Jiyuan Wang, Chunyu Lin, Lang Nie, Kang Liao, Shuwei Shao, Yao Zhao
ACM Multimedia (ACM MM 2024)
[Paper] [Code]

WeatherDepth: Curriculum Contrastive Learning for Self-Supervised Depth Estimation under Adverse Weather Conditions
Jiyuan Wang, Chunyu Lin, Lang Nie, Shujun Huang, Yao Zhao, Xing Pan, Rui Ai
IEEE International Conference on Robotics and Automation (ICRA 2024)
[Paper] [Code]

S-OmniMVS: Incorporating Sphere Geometry into Omnidirectional Stereo Matching
Zisong Chen, Chunyu Lin, Lang Nie, Zhijie Shen, Kang Liao, Yuanzhouhan Cao, Yao Zhao
ACM Multimedia (ACM MM 2023). (Oral presentation)
[Paper]

Parallax-Tolerant Unsupervised Deep Image Stitching
Lang Nie, Chunyu Lin, Kang Liao, Shuaicheng Liu, Yao Zhao
International Conference on Computer Vision (ICCV 2023)
[Paper] [Code]

RecRecNet: Rectangling Rectified Wide-Angle Images by Thin-Plate Spline Model and DoF-based Curriculum Learning
Kang Liao*, Lang Nie*, Chunyu Lin, Zishuo Zheng, Yao Zhao (* Equal contribution)
International Conference on Computer Vision (ICCV 2023)
[Paper] [Code]

GAFlow: Incorporating Gaussian Attention into Optical Flow
Ao Luo, Fan Yang, Xin Li, Lang Nie, Chunyu Lin, Haoqiang Fan, Shuaicheng Liu
International Conference on Computer Vision (ICCV 2023)
[Paper] [Code]

Unsupervised OmniMVS: Efficient Omnidirectional Depth Inference via Establishing Pseudo-Stereo Supervision
Zisong Chen, Chunyu Lin, Lang Nie, Kang Liao, Yao Zhao
IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2023)
[Paper] [Code]

Deep Rotation Correction without Angle Prior
Lang Nie, Chunyu Lin, Kang Liao, Shuaicheng Liu, Yao Zhao
IEEE Transactions on Image Processing (TIP 2023)
[Paper] [Code] [Dataset]

Disentangling Orthogonal Planes for Indoor Panoramic Room Layout Estimation with Cross-Scale Distortion Awareness
Zhijie Shen, Zishuo Zheng, Chunyu Lin, Lang Nie, Kang Liao, Shuai Zheng, Yao Zhao
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR 2023)
[Paper] [Code]

Complementary Bi-directional Feature Compression for Indoor 360° Semantic Segmentation with Self-distillation
Zishuo Zheng, Chunyu Lin, Lang Nie, Kang Liao, Zhijie Shen, Yao Zhao
Winter Conference on Applications of Computer Vision (WACV 2023)
[Paper]

Deep Rectangling for Image Stitching: A Learning Baseline
Lang Nie, Chunyu Lin, Kang Liao, Shuaicheng Liu, Yao Zhao
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR 2022). (Oral presentation)
[Paper] [Code] [Dataset] [Video] [Chinese Blog]

PanoFormer: Panorama Transformer for Indoor 360° Depth Estimation
Zhijie Shen, Chunyu Lin, Kang Liao, Lang Nie, Zishuo Zheng, Yao Zhao
European Conference on Computer Vision (ECCV 2022)
[Paper] [Code]

SivsFormer: Parallax-Aware Transformers for Single-image-based View Synthesis
Chunlan Zhang, Chunyu Lin, Kang Liao, Lang Nie, Yao Zhao
IEEE Conference on Virtual Reality and 3D User Interfaces (VR 2022)
[Paper]

Unsupervised Deep Image Stitching: Reconstructing Stitched Features to Images
Lang Nie, Chunyu Lin, Kang Liao, Shuaicheng Liu, Yao Zhao
IEEE Transactions on Image Processing (TIP 2021)
[Paper] [Code] [Dataset] [Chinese Blog]

Invited Talk