Van Nguyen Nguyen

Meng Zheng, Samhita Marri, Anwesa Choudhuri, Benjamin Planche, Zhongpai Gao, Van Nguyen Nguyen, Terrence Chen, Girish Chowdhary, Ziyan Wu

NeurIPS 2026

A method that uses failure trajectories as adaptive negative guidance for diffusion- and flow-based VLA policies, steering action generation away from failure-prone regions toward reliable success modes.

Zhongpai Gao, Benjamin Planche, Van Nguyen Nguyen, Meng Zheng, Anwesa Choudhuri, Arun Innanje, Terrence Chen, Ziyan Wu

NeurIPS 2026

A method that directly parameterizes conditional opacity and position, eliminating costly covariance-derived slicing in N-dimensional splatting to improve rendering speed while matching or improving quality across Gaussian and Beta kernels.

Junyi Wu, Van Nguyen Nguyen, Benjamin Planche, Jiachen Tao, Changchang Sun, Zhongpai Gao, Zhenghao Zhao, Anwesa Choudhuri, Gengyu Zhang, Meng Zheng, Feiran Wang, Terrence Chen, Yan Yan, Ziyan Wu

CVPR 2026

A method that represents dynamic scenes with instance-embedded deformable 3D Gaussians, disentangling visibility from persistent object identity to enable novel-view panoptic segmentation and open-vocabulary 4D querying.

Yuhao Su, Anwesa Choudhuri, Zhongpai Gao, Benjamin Planche, Van Nguyen Nguyen, Meng Zheng, Yuhan Shen, Arun Innanje, Terrence Chen, Ehsan Elhamifar, Ziyan Wu

CVPR 2026

We introduce MedVidBench, a large-scale benchmark of 531K video-instruction pairs across 8 medical sources, and MedGRPO, an RL framework with cross-dataset reward normalization and a medical LLM judge for balanced multi-dataset training.

Rong Liu, Zhongpai Gao, Benjamin Planche, Meida Chen, Van Nguyen Nguyen, Meng Zheng, Anwesa Choudhuri, Terrence Chen, Yue Wang, Andrew Feng, Ziyan Wu

ICLR 2026

A unified framework that generalizes 3D Gaussian Splatting to N-dimensional anisotropic Beta kernels for explicit radiance field rendering. Beta kernels naturally decompose scene properties into interpretable components (surface vs. texture, diffuse vs. specular, static vs. dynamic) without explicit supervision.

arXiv project code

Van Nguyen Nguyen, Stephen Tyree, Andrew Guo, Médéric Fourmy, Anas Gouda, Taeyeop Lee, Sungphill Moon, Hyeontae Son, Lukas Ranftl, Jonathan Tremblay, Eric Brachmann, Bertram Drost, Vincent Lepetit, Carsten Rother, Stan Birchfield, Jiri Matas, Yann Labbé, Martin Sundermeyer, Tomáš Hodaň

CVPRW 2025 (CV4MR Best Paper Award)

The report of BOP Challenge 2024 on model-based and model-free 2D/6D object detection on BOP-Classic and new BOP-H3 datasets (HOT3D, HOPEv2, HANDAL).

Van Nguyen Nguyen, Christian Forster, Sindi Shkodrani, Bugra Tekin, Cem Keskin, Vincent Lepetit, Tomáš Hodaň

CVPRW 2025

A method that refines and tracks the 6DoF pose of unseen objects from their CAD models, aligning the model’s 2D projection with the object’s appearance in an RGB image.

arXiv code

Tomas Hodan, Martin Sundermeyer, Yann Labbé, Van Nguyen Nguyen, Gu Wang, Eric Brachmann, Bertram Drost, Vincent Lepetit, Carsten Rother, Jiri Matas

CVPRW 2024

The report of BOP Challenge 2023 on state-of-the-art methods for seen and unseen object pose estimation.

Van Nguyen Nguyen, Thibault Groueix, Mathieu Salzmann, Vincent Lepetit

CVPR 2024

A “hybrid” template-patch correspondence approach that is fast, robust, and more accurate to estimate 6D pose of novel objects in RGB images.

arXiv code

Van Nguyen Nguyen, Thibault Groueix, Georgy Ponimatkin, Yinlin Hu, Renaud Marlet, Mathieu Salzmann, Vincent Lepetit

CVPR 2024

A method that estimates the relative pose of unseen objects from a single reference image, predicting a pose distribution that handles symmetry ambiguities.

arXiv code

Guillaume Astruc, Nicolas Dufour, Ioannis Siglidis, Constantin Aronssohn, Nacim Bouia, Stephanie Fu, Romain Loiseau, Van Nguyen Nguyen, Charles Raude, Elliot Vincent, Lintao Xu, Hongyu Zhou, Loic Landrieu

CVPR 2024

A new benchmark for visual geolocation (~Geoguessr).

arXiv code

Van Nguyen Nguyen, Thibault Groueix, Georgy Ponimatkin, Vincent Lepetit, Tomáš Hodaň

ICCVW 2023 (R6D Best Method Award for 2D detection of unseen objects)

A method that can segment novel objects for a given RGB image from only their CAD models.

arXiv code

Van Nguyen Nguyen⁺, Yuming Du⁺, Yang Xiao, Michaël Ramamonjisoa, Vincent Lepetit

3DV (Oral)

A method for tracking the 6D motion of objects in RGB video sequences when neither training images nor even the 3D geometry of the objects is available.

arXiv code

Van Nguyen Nguyen, Yinlin Hu, Yang Xiao, Mathieu Salzmann, Vincent Lepetit

CVPR 2022

A method that can recognize objects and estimate their 3D pose in color images even under partial occlusions. Our method requires neither a training phase on these objects nor real images depicting them, only their CAD models.

arXiv code