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Junyi Cao

Master Student CSE @ SJTU
Hard work does not always pay off.
Yet that is the reason why persistence is precious.

About Me

I recently graduated with a Master’s Degree in computer science and technology at the Department of Computer Science and Engineering, Shanghai Jiao Tong University, supervised by Prof. Chao Ma.

Previously, I obtained my Bachelor’s Degree in software engineering from South China University of Technology, advised by Prof. Mingkui Tan.

My research focuses on building intelligent machine systems that are able to sense, understand, and reason in the real world like humans. I previously did some research on 3D scene reconstruction, domain generalization, and face information security. My primary focus recently has been on physically realistic 4D generation.

News

  • [Mar. 2024]   Graduated with honer from SJTU.
  • [Feb. 2024]   Began a new internship at vivo researching 3D representations for generative dynamics.
  • [Jan. 2024]   One first-author paper is accepted by ICRA 2024. Supplementary video can be found here.
  • [Jan. 2024]   Successfully defended the thesis for a Master’s Degree.

Publications

(* indicates equal contribution)

NeuMA: Neural Material Adaptor for Visual Grounding of Intrinsic Dynamics

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In Submission, 2024.
Key points: We present an optimization-based method that integrates widely accepted physics laws with learnable corrections for grounding intrinsic dynamics from visual observations. The learned dynamics can be applied to new environments and used for physically plausible 4D generation.

Lightning NeRF: Efficient Hybrid Scene Representation for Autonomous Driving

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In IEEE International Conference on Robotics and Automation (ICRA), 2024.
Key points: We propose an efficient hybrid scene representation for autonomous driving scenarios that reduces time complexity for training and rendering via the geometry prior from LiDAR observations.

Towards Unified Defense for Face Forgery and Spoofing Attacks via Dual Space Reconstruction Learning

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In International Journal of Computer Vision (IJCV), 2024.
Key points: We put forward a dual space reconstruction learning framework that focused on the commonalities of real faces in both spatial and frequency domains to learn the comprehensive difference between real faces and diverse attacks. In addition, we set up a novel benchmark consisting of both face forgery attacks and face spoofing attacks to evaluate models’ competence against diverse attack data.

End-to-End Reconstruction-Classification Learning for Face Forgery Detection

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In IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), 2022.
Key points: We train a reconstruction network over genuine faces only and use the output of the latent feature by the encoder to perform binary classification.

Structure Destruction and Content Combination for Generalizable Anti-Spoofing

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In IEEE Transactions on Biometrics, Behavior, and Identity Science, 2022.

Co-attention Network with Label Embedding for Text Classification

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In Neurocomputing, 2021.

Dynamic Extension Nets for Few-shot Semantic Segmentation

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In ACM International Conference on Multimedia, 2020.
Key points: We build dynamic extension nets for few-shot segmentation which constructs and maintains a classifier for the novel semantic class by leveraging the knowledge from the base classes.

Awards and Honor

  • Outstanding Graduate (Top 5%), Shanghai Jiao Tong University, 2024
  • First-class Academic Scholarship, Shanghai Jiao Tong University, 2022, 2023
  • HyperGryph Scholarship (Top 5%), Shanghai Jiao Tong University, 2022
  • The First Place in Artificial Intelligence Security Competition 2022 (Deepfake Track)
    Team Name: AreYouFake. Tech Report, Media Coverage
  • National Scholarship (Top 1%), Ministry of Education of China, 2019
  • First-class Scholarship (Top 5%), South China University of Technology, 2018
  • Merit Student Award, South China University of Technology, 2018, 2019, 2020
  • Outstanding Student Leader, South China University of Technology, 2018, 2019

Academic Services

I have been invitied to serve as a reviewer for

  • ACM MM 2024, ICCV 2023, CVPR 2023
  • IEEE Transactions on Pattern Analysis and Machine Intelligence
  • IEEE Transactions on Circuits and Systems for Video Technology
  • IEEE/ACM Transactions on Computational Biology and Bioinformatics