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Modeling the physical contacts between the hand and object is standard for refining inaccurate hand poses and generating novel human grasp in 3D hand-object reconstruction. However, existing methods rely on geometric constraints that cannot…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Zhongqun Zhang , Hengfei Wang , Ziwei Yu , Yihua Cheng , Angela Yao , Hyung Jin Chang

Diffusion models have made breakthroughs in 3D generation tasks. Current 3D diffusion models focus on reconstructing target shape from images or a set of partial observations. While excelling in global context understanding, they struggle…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Yuanbo Wang , Zhaoxuan Zhang , Jiajin Qiu , Dilong Sun , Zhengyu Meng , Xiaopeng Wei , Xin Yang

When performing tasks like laundry, humans naturally coordinate both hands to manipulate objects and anticipate how their actions will change the state of the clothes. However, achieving such coordination in robotics remains challenging due…

Robotics · Computer Science 2025-04-01 Haonan Chen , Jiaming Xu , Lily Sheng , Tianchen Ji , Shuijing Liu , Yunzhu Li , Katherine Driggs-Campbell

Robots hold great promise for performing repetitive or hazardous tasks, but achieving human-like dexterity, especially in contact-rich and dynamic environments, remains challenging. Rigid robots, which rely on position or velocity control,…

Robotics · Computer Science 2024-10-28 Malek Aburub , Cristian C. Beltran-Hernandez , Tatsuya Kamijo , Masashi Hamaya

Long-horizon contact-rich manipulation has long been a challenging problem, as it requires reasoning over both discrete contact modes and continuous object motion. We introduce Implicit Contact Diffuser (ICD), a diffusion-based model that…

Robotics · Computer Science 2024-10-23 Zixuan Huang , Yinong He , Yating Lin , Dmitry Berenson

In this paper, we propose a novel approach called DIffusion-guided DIversity (DIDI) for offline behavioral generation. The goal of DIDI is to learn a diverse set of skills from a mixture of label-free offline data. We achieve this by…

Machine Learning · Computer Science 2024-05-24 Jinxin Liu , Xinghong Guo , Zifeng Zhuang , Donglin Wang

Contact-rich assembly is fundamental in robotics but poses significant challenges due to uncertainties in relative poses, such as misalignments and small clearances in peg-in-hole tasks. Existing approaches typically address search and…

This paper proposes MATT-Diff: Multimodal Active Target Tracking by Diffusion Policy, a control policy for active multi-target tracking using a mobile agent. The policy enables multiple behavior modes for the agent, including exploration,…

Robotics · Computer Science 2026-04-23 Saida Liu , Nikolay Atanasov , Shumon Koga

The remarkable performance of deep neural networks depends on the availability of massive labeled data. To alleviate the load of data annotation, active deep learning aims to select a minimal set of training points to be labelled which…

Machine Learning · Computer Science 2020-03-24 Dan Kushnir , Luca Venturi

Deepgenerative models havebecomeapromisingapproach for human motion prediction due to their ability to capture multimodal distributions and represent diverse human be haviors. However, generating predictions that are both di verse and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Lei Chu , Yuhuan Zhao

Robotic dexterous in-hand manipulation, where multiple fingers dynamically make and break contact, represents a step toward human-like dexterity in real-world robotic applications. Unlike learning-based approaches that rely on large-scale…

Robotics · Computer Science 2025-05-09 Yongpeng Jiang , Mingrui Yu , Xinghao Zhu , Masayoshi Tomizuka , Xiang Li

In many real-world settings, agents must learn from an offline dataset gathered by some prior behavior policy. Such a setting naturally leads to distribution shift between the behavior policy and the target policy being trained - requiring…

Machine Learning · Computer Science 2024-04-10 Matthew Thomas Jackson , Michael Tryfan Matthews , Cong Lu , Benjamin Ellis , Shimon Whiteson , Jakob Foerster

Learning-based methods excel at robot motion generation but remain limited in contact-rich physical interaction. Impedance control provides stable and safe contact behavior but requires task-specific tuning of stiffness and damping…

Robotics · Computer Science 2026-03-06 Noah Geiger , Tamim Asfour , Neville Hogan , Johannes Lachner

Physical contact between hands and objects plays a critical role in human grasps. We show that optimizing the pose of a hand to achieve expected contact with an object can improve hand poses inferred via image-based methods. Given a hand…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Patrick Grady , Chengcheng Tang , Christopher D. Twigg , Minh Vo , Samarth Brahmbhatt , Charles C. Kemp

Robots must make and break contact with the environment to perform useful tasks, but planning and control through contact remains a formidable challenge. In this work, we achieve real-time contact-implicit model predictive control with a…

Robotics · Computer Science 2025-05-06 Vince Kurtz , Alejandro Castro , Aykut Özgün Önol , Hai Lin

Simulation of autonomous vehicle systems requires that simulated traffic participants exhibit diverse and realistic behaviors. The use of prerecorded real-world traffic scenarios in simulation ensures realism but the rarity of safety…

In real-world scenarios, objects often require repositioning and reorientation before they can be grasped, a process known as pre-grasp manipulation. Learning universal dexterous functional pre-grasp manipulation requires precise control…

Robotics · Computer Science 2024-05-07 Tianhao Wu , Yunchong Gan , Mingdong Wu , Jingbo Cheng , Yaodong Yang , Yixin Zhu , Hao Dong

Effectively modeling the interaction between human hands and objects is challenging due to the complex physical constraints and the requirement for high generation efficiency in applications. Prior approaches often employ computationally…

Robotics · Computer Science 2024-11-25 Xiaofei Wu , Tao Liu , Caoji Li , Yuexin Ma , Yujiao Shi , Xuming He

This paper presents a sampling-based planning algorithm for in-hand manipulation of a grasped object using a series of external pushes. A high-level sampling-based planning framework, in tandem with a low-level inverse contact dynamics…

Robotics · Computer Science 2017-11-03 Nikhil Chavan-Dafle , Alberto Rodriguez

We propose an unsupervised anomaly detection approach based on a physics-informed diffusion model for multivariate time series data. Over the past years, diffusion model has demonstrated its effectiveness in forecasting, imputation,…

Machine Learning · Computer Science 2025-08-18 Juhi Soni , Markus Lange-Hegermann , Stefan Windmann