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Real-time proprioception is a challenging problem for soft robots, which have almost infinite degrees-of-freedom in body deformation. When multiple actuators are used, it becomes more difficult as deformation can also occur on actuators…

Robotics · Computer Science 2020-12-24 Rob B. N. Scharff , Guoxin Fang , Yingjun Tian , Jun Wu , Jo M. P. Geraedts , Charlie C. L. Wang

Modelling deformation of anatomical objects observed in medical images can help describe disease progression patterns and variations in anatomy across populations. We apply a stochastic generalisation of the Large Deformation Diffeomorphic…

Statistics Theory · Mathematics 2018-12-14 Line Kühnel , Alexis Arnaudon , Tom Fletcher , Stefan Sommer

Reliable multiscale models of thrombosis require platelet-scale fidelity at organ-scale cost, a gap that scientific machine learning has the potential to narrow. We train a DeepONet surrogate on platelet dynamics generated with LAMMPS for…

Fluid Dynamics · Physics 2025-06-26 Marco Laudato

Real-time simulation of elastic structures is essential in many applications, from computer-guided surgical interventions to interactive design in mechanical engineering. The Finite Element Method is often used as the numerical method of…

Machine Learning · Computer Science 2021-09-21 Alban Odot , Ryadh Haferssas , Stéphane Cotin

DeepWarp is an efficient and highly re-usable deep neural network (DNN) based nonlinear deformable simulation framework. Unlike other deep learning applications such as image recognition, where different inputs have a uniform and consistent…

Graphics · Computer Science 2021-02-18 Ran Luo , Tianjia Shao , Huamin Wang , Weiwei Xu , Kun Zhou , Yin Yang

Augmented Reality (AR) holds the potential to revolutionize surgical procedures by allowing surgeons to visualize critical structures within the patient's body. This is achieved through superimposing preoperative organ models onto the…

Medical Physics · Physics 2024-08-07 Zheng Han , Qi Dou

Elastic deformation due to embedded fluidic networks is currently studied in the context of soft-actuators and soft-robotic applications. In this work, we analyze interaction between the elastic deflection of a slender beam and viscous flow…

Fluid Dynamics · Physics 2015-11-19 Yoav Matia , Amir D. Gat

Despite the advances in extracting local features achieved by handcrafted and learning-based descriptors, they are still limited by the lack of invariance to non-rigid transformations. In this paper, we present a new approach to compute…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Guilherme Potje , Renato Martins , Felipe Cadar , Erickson R. Nascimento

This paper focuses on motion prediction for point cloud sequences in the challenging case of deformable 3D objects, such as human body motion. First, we investigate the challenges caused by deformable shapes and complex motions present in…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Pedro Gomes , Silvia Rossi , Laura Toni

Various neural network based methods are capable of anticipating human body motions from data for a short period of time. What these methods lack are the interpretability and explainability of the network and its results. We propose to use…

Machine Learning · Computer Science 2019-12-17 Kristina Enes , Hassan Errami , Moritz Wolter , Tim Krake , Bernhard Eberhardt , Andreas Weber , Jörg Zimmermann

In this paper, we propose a method for online estimation of the robot's posture. Our method uses von Mises and Bingham distributions as probability distributions of joint angles and 3D orientation, which are used in directional statistics.…

Robotics · Computer Science 2024-10-28 Hiroya Sato , Kento Kawaharazuka , Tasuku Makabe , Kei Okada , Masayuki Inaba

We present a novel mesh-based learning approach (N-Cloth) for plausible 3D cloth deformation prediction. Our approach is general and can handle cloth or obstacles represented by triangle meshes with arbitrary topologies. We use graph…

Graphics · Computer Science 2022-05-31 Yudi Li , Min Tang , Yun Yang , Zi Huang , Ruofeng Tong , Shuangcai Yang , Yao Li , Dinesh Manocha

We investigate the problem of pixelwise correspondence for deformable objects, namely cloth and rope, by comparing both classical and learning-based methods. We choose cloth and rope because they are traditionally some of the most difficult…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Priya Sundaresan , Aditya Ganapathi , Harry Zhang , Shivin Devgon

Humans can quickly determine the force required to grasp a deformable object to prevent its sliding or excessive deformation through vision and touch, which is still a challenging task for robots. To address this issue, we propose a novel…

Robotics · Computer Science 2020-06-24 Shaowei Cui , Rui Wang , Junhang Wei , Fanrong Li , Shuo Wang

We present a novel learning method to predict the cloth deformation for skeleton-based characters with a two-stream network. The characters processed in our approach are not limited to humans, and can be other skeletal-based representations…

Graphics · Computer Science 2023-05-31 Yudi Li , Min Tang , Yun Yang , Ruofeng Tong , Shuangcai Yang , Yao Li , Bailin An , Qilong Kou

Monocular dense 3D reconstruction of deformable objects is a hard ill-posed problem in computer vision. Current techniques either require dense correspondences and rely on motion and deformation cues, or assume a highly accurate…

Computer Vision and Pattern Recognition · Computer Science 2019-08-07 Vladislav Golyanik , Soshi Shimada , Kiran Varanasi , Didier Stricker

Understanding how an animal can deform and articulate is essential for a realistic modification of its 3D model. In this paper, we show that such information can be learned from user-clicked 2D images and a template 3D model of the target…

Computer Vision and Pattern Recognition · Computer Science 2016-05-25 Angjoo Kanazawa , Shahar Kovalsky , Ronen Basri , David W. Jacobs

Deformable object manipulation tasks have long been regarded as challenging robotic problems. However, until recently very little work has been done on the subject, with most robotic manipulation methods being developed for rigid objects.…

Robotics · Computer Science 2022-08-04 Rita Laezza , Yiannis Karayiannidis

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

Grasping deformable objects is not well researched due to the complexity in modelling and simulating the dynamic behavior of such objects. However, with the rapid development of physics-based simulators that support soft bodies, the…

Robotics · Computer Science 2021-07-20 Tran Nguyen Le , Jens Lundell , Fares J. Abu-Dakka , Ville Kyrki