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Chilam Cheang

7 accepted papers

2025

GR-MG: Leveraging Partially-Annotated Data via Multi-Modal Goal-Conditioned Policy

RA-L 2025

The robotics community has consistently aimed to achieve generalizable robot manipulation with flexible natural language instructions. One primary challenge is that obtaining robot trajectories fully annotated with both actions and texts is time-consuming and labor-intensive. However, partially-anno

Cited by 39SourcecodeScholar
2025

IRASim: A Fine-Grained World Model for Robot Manipulation

ICCV 2025poster

World models allow autonomous agents to plan and explore by predicting the visual outcomes of different actions. However, for robot manipulation, it is challenging to accurately model the fine-grained robot-object interaction within the visual space using existing methods which overlook precise alig…

2024

Unleashing Large-Scale Video Generative Pre-training for Visual Robot Manipulation

ICLR 2024poster

Generative pre-trained models have demonstrated remarkable effectiveness in language and vision domains by learning useful representations. In this paper, we extend the scope of this effectiveness by showing that visual robot manipulation can significantly benefit from large-scale video generative p…

2024

Vision-Language Foundation Models as Effective Robot Imitators

ICLR 2024spotlight

Recent progress in vision language foundation models has shown their ability to understand multimodal data and resolve complicated vision language tasks, including robotics manipulation. We seek a straightforward way of making use of existing vision-language models (VLMs) with simple fine-tuning on…

Cited by 133SourcePDFScholar
2022

I Know What You Draw: Learning Grasp Detection Conditioned on a Few Freehand Sketches

ICRA 2022poster

In this paper, we are interested in the problem of generating target grasps by understanding freehand sketches. The sketch is useful for the persons who cannot formulate language and the cases where a textual description is not available on the fly. However, very few works are aware of the usability…

Cited by 7SourceScholar
2022

Learning 6-DoF Object Poses to Grasp Category-Level Objects by Language Instructions

ICRA 2022poster

This paper studies the task of any objects grasping from the known categories by free-form language instructions. This task demands the technique in computer vision, natural language processing, and robotics. We bring these disciplines together on this open challenge, which is essential to human-rob…

Cited by 23SourceScholar
2022

SAR-Net: Shape Alignment and Recovery Network for Category-Level 6D Object Pose and Size Estimation

CVPR 2022poster

Given a single scene image, this paper proposes a method of Category-level 6D Object Pose and Size Estimation (COPSE) from the point cloud of the target object, without external real pose-annotated training data. Specifically, beyond the visual cues in RGB images, we rely on the shape information pr…

Cited by 83PDFScholar