Jingxiang Sun (孙景翔)

Email: sunjingxiang_stark[at]126.com       Google Scholar      Github

I am an incoming PhD student of Department of Automation, Tsinghua University in fall, 2022 and under the supervision of Prof. Yebin Liu. Prior to Tsinghua University I obtained M.S. from Department of ECE, University of Illinois at Urbana-Champaign and B.S. from Beijing University of Technology. My research focuses on neural rendering, digital avatar and image generation.

I am very fortunate to have spent summer 2021 at Tencent AI Lab with Xuan Wang and Jue Wang; fall 2020 at State Key Laboratory of CAD&CG at Zhejiang University with Xiaowei Zhou.

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Publications
Next3D: Generative Neural Texture Rasterization for 3D-Aware Head Avatars
Jingxiang Sun, Xuan Wang, Lizhen Wang, Xiaoyu Li, Yong Zhang, Hongwen Zhang, Yebin Liu
arXiv
[Project] [PDF] [Code] [BibTeX]

We propose a novel 3D GAN framework for unsupervised learning of generative, high-quality and 3D-consistent facial avatars from unstructured 2D images. To achieve both deformation accuracy and topological flexibility, we present a 3D representation called Generative Texture-Rasterized Tri-planes.

DiffuStereo: High Quality Human Reconstruction via Diffusion-based Stereo Using Sparse Cameras
Ruizhi Shao, Zerong Zheng, Hongwen Zhang, Jingxiang Sun, Yebin Liu
2022 IEEE European Conference on Computer Vision, ECCV 2022, Oral Presentation
[Project] [PDF] [Code] [BibTeX]

We propose DiffuStereo, a novel system using only sparse cameras (8 in this work) for high-quality 3D human reconstruction. At its core is a novel diffusion-based stereo module, which introduces diffusion models, a type of powerful generative models, into the iterative stereo matching network.

IDE-3D: Interactive Disentangled Editing for High-Resolution 3D-aware Portrait Synthesis
Jingxiang Sun, Xuan Wang, Yichun Shi, Lizhen Wang, Jue Wang, Yebin Liu
ACM Transactions on Graphics (SIGGRAPH Asia 2022)
[Project] [PDF] [Code] [BibTeX]

We propose a high-resolution 3D-aware generative model that not only enables local control of the facial shape and texture, but also supports real-time, interactive editing.

FENeRF: Face Editing in Neural Radiance Fields
Jingxiang Sun, Xuan Wang, Yong Zhang, Xiaoyu Li, Qi Zhang, Yebin Liu, Jue Wang
2022 IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2022,
[Project] [PDF] [Code] [BibTeX]

We propose FENeRF, a 3D-aware generator that can produce view-consistent and locally-editable portrait images. Our method uses two decoupled latent codes to generate corresponding facial semantics and texture in a spatial aligned 3D volume with shared geometry. We also reveal that joint learning semantics and texture helps to generate finer geometry.

iMoCap: Motion Capture from Internet Videos
Junting Dong*, Qing Shuai*, Jingxiang Sun, Yuanqing Zhang, Hujun Bao, Xiaowei Zhou (* equal contribution)
2022 International Journal of Computer Vision , IJCV 2022,
[PDF] [BibTeX]

We propose a novel optimization-based framework and experimentally demonstrate its ability to recover much more precise and detailed motion from multiple videos, compared against monocular pose estimation methods.

BusTime: Which is the Right Prediction Model for My Bus Arrival Time?
Dairui Liu, Jingxiang Sun, Shen Wang
2020 IEEE International Conference on Big Data Analytics, ICBDA 2020,
[PDF] [BibTeX]

We propose a general and practical evaluation framework for analysing various widely used prediction models (i.e. delay, k- nearest-neighbor, kernel regression, additive model, and recur- rent neural network using long short term memory) for bus arrival time.


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