Jai Bardhan

World Models • Robot Learning • Generative & Self-Supervised Learning

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Prague, Czechia
Push-T: the ● agent pushes the T into its T outline · pre-rendered rollout

Hello 👋 !

My name is Jai.

I am a researcher in the IMPACT Group at CIIRC, Czech Technical University in Prague, advised by Josef Sivic and Vladimir Petrik. I work on world models for robotics: 3D-consistent action-conditioned video models, world action models, RL post-training of world models, and using them to evaluate and improve robot policies. More broadly, I am interested in generative and self-supervised learning.

Recent projects:

  • DepthWorld (CoRL 2026): a 3D world model that jointly predicts multi-view RGB and metric depth, trained on DROID-3D, 71k DROID episodes we recalibrated to 4.9 mm median extrinsic error.
  • PersistWorld (ECCV 2026, 🏆 Outstanding Paper Award at UniWorld): RL post-training that keeps video world models stable over long autoregressive rollouts.
  • CSCD (WACV 2026): curve skeletonization of meshes and point clouds in the continuous domain, via discrete differential geometry.

Before CIIRC, I spent two years as a predoctoral research fellow in the Deep Learning and AI Lab at TCS Research with Ramya Hebbalaguppe, working on 3D shape analysis, confidence calibration in vision-language models, and evaluating and interpreting diffusion models.

I did my B.Tech. in Computer Science and M.S. by Research in Computational Natural Sciences at IIIT Hyderabad. My M.S. thesis with Subhadip Mitra, “Revisiting Deep Learning for Particle Physics”, received the Ritesh Tiwari Outstanding MS Thesis Award. I still collaborate with Subhadip’s group on machine learning for particle physics, such as self-supervised foundation models for collider data (HEP-JEPA).

I am always happy to chat about world models and robot learning, so feel free to reach out!

You can find my CV here.

awards & service

  • 2026 · Outstanding Paper Award & Oral, UniWorld Workshop @ ECCV 2026, for PersistWorld
  • 2026 · Gold Reviewer, ICML 2026
  • 2023 · Ritesh Tiwari Outstanding MS Thesis Award, IIIT Hyderabad
  • 2023 · Gold Medal (highest CGPA, Computational Natural Sciences, 2018 batch), IIIT Hyderabad
  • Reviewer · CoRL, ECCV, CVPR, SIGGRAPH Asia, BMVC, NeurIPS, ICML, AAAI, TMLR

news

Oct 07, 2026 DepthWorld is out: paper, code, model checkpoint, and the DROID-3D extrinsics for 71k recalibrated DROID episodes.
Sep 09, 2026 PersistWorld received an Oral and the 🏆 Outstanding Paper Award at the UniWorld Workshop @ ECCV 2026 in Malmö.
Sep 05, 2026 DepthWorld, a 3D world model for robot manipulation that jointly predicts multi-view RGB and metric depth, has been accepted to CoRL 2026!
Jul 12, 2026 PersistWorld, our work on stabilizing robot world model rollouts with reinforcement learning, has been accepted to ECCV 2026!
Nov 08, 2025 Two papers accepted: CSCD: Curve Skeletonization in Continuous Domain at WACV 2026 and Refine and Align (confidence calibration for VQA) at AAAI 2026.

selected publications

  1. CoRL
    depthworld.jpg
    DepthWorld: 3D World Model for Robot Manipulation
    Jai Bardhan, Josef Sivic, and Vladimir Petrik
    In Conference on Robot Learning (CoRL), 2026
  2. ECCV
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    Persistent Robot World Models: Stabilizing Multi-Step Rollouts via Reinforcement Learning
    Jai Bardhan, Patrik Drozdík, Josef Sivic, and 1 more author
    In European Conference on Computer Vision (ECCV), 2026
  3. RA-L
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    REALM: A Real-to-Sim Validated Benchmark for Generalization in Robotic Manipulation
    Martin Sedlacek, Pavlo Yefanov, Georgy Ponimatkin, and 7 more authors
    IEEE Robotics and Automation Letters (RA-L), 2026
  4. WACV
    cscd.png
    Curve Skeletonization in Continuous domain for Meshes and Point Clouds
    Jai Bardhan, Ramya Hebbalaguppe, and Aravind Udupa
    In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), 2026
  5. ICLR-W
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    HEP-JEPA: A foundation model for collider physics using joint embedding predictive architecture
    Jai Bardhan, Radhikesh Agrawal, Abhiram Tilak, and 2 more authors
    In ICLR 2025 Workshops on World Models and on Agentic AI for Scientific Discovery, 2025
  6. PRD
    bprime_feynman.png
    Machine learning-enhanced search for a vectorlike singlet B quark decaying to a singlet scalar or pseudoscalar
    Jai Bardhan, Tanumoy Mandal, Subhadip Mitra, and 1 more author
    Phys. Rev. D, Jun 2023