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We present a parametric deformable model which recovers image components with a complexity independent from the resolution of input images. The proposed model also automatically changes its topology and remains fully compatible with the…

Computer Vision and Pattern Recognition · Computer Science 2009-06-18 Jacques-Olivier Lachaud , Benjamin Taton

We present a probabilistic framework to generate character animations based on weak control signals, such that the synthesized motions are realistic while retaining the stochastic nature of human movement. The proposed architecture, which…

Graphics · Computer Science 2020-10-21 Saeed Ghorbani , Calden Wloka , Ali Etemad , Marcus A. Brubaker , Nikolaus F. Troje

Robotic manipulation has made significant advancements, with systems demonstrating high precision and repeatability. However, this remarkable precision often fails to translate into efficient manipulation of thin deformable objects. Current…

Robotics · Computer Science 2025-07-09 Chao Zhao , Chunli Jiang , Lifan Luo , Shuai Yuan , Qifeng Chen , Hongyu Yu

Despite the recent successes of deep learning, such models are still far from some human abilities like learning from few examples, reasoning and explaining decisions. In this paper, we focus on organ annotation in medical images and we…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Régis Pierrard , Jean-Philippe Poli , Céline Hudelot

Skeleton-based and cage-based deformation techniques represent the two most popular approaches to control real-time deformations of digital shapes and are, to a vast extent, complementary to one another. Despite their complementary roles,…

Graphics · Computer Science 2019-09-09 Fabrizio Corda , Jean-Marc Thiery , Marco Livesu , Enrico Puppo , Tamy Boubekeur , Riccardo Scateni

The growing importance of real-time simulation in the medical field has exposed the limitations and bottlenecks inherent in the digital representation of complex biological systems. This paper presents a novel methodology aimed at advancing…

Machine Learning · Computer Science 2024-12-17 Lucas Tesán , David González , Pedro Martins , Elías Cueto

We present a new method for generating controllable, dynamically responsive, and photorealistic human animations. Given an image of a person, our system allows the user to generate Physically plausible Upper Body Animation (PUBA) using…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Ziyuan Huang , Zhengping Zhou , Yung-Yu Chuang , Jiajun Wu , C. Karen Liu

We present a learning-based method for building driving-signal aware full-body avatars. Our model is a conditional variational autoencoder that can be animated with incomplete driving signals, such as human pose and facial keypoints, and…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Timur Bagautdinov , Chenglei Wu , Tomas Simon , Fabian Prada , Takaaki Shiratori , Shih-En Wei , Weipeng Xu , Yaser Sheikh , Jason Saragih

The automatic shape control of deformable objects is a challenging (and currently hot) manipulation problem due to their high-dimensional geometric features and complex physical properties. In this study, a new methodology to manipulate…

Robotics · Computer Science 2021-04-12 Jiaming Qi , Guangfu Ma , Peng Zhou , Haibo Zhang , Yueyong Lyu , David Navarro-Alarcon

Biological cells can exchange messages through soluble molecules or membrane-bound receptors. In particular in the latter case, the interaction is usually located in specific regions of the interacting cells and may depend on or induce…

Quantitative Methods · Quantitative Biology 2023-12-12 Thorsten Prüstel , Martin Meier-Schellersheim

Accurate simulation of blood flow in deformable vessels is critical in cardiovascular research for understanding disease progression and informing clinical decision-making. However, due to the thin-walled nature of arteries, traditional…

Computational Engineering, Finance, and Science · Computer Science 2026-01-05 Chenxi Zhao , Dong Wu , Weiyi Kong , Oskar J. Haidn , Xiangyu Hu

Motion estimation of organs in a sequence of images is important in numerous medical imaging applications. The focus of this paper is the analysis of 4D Respiratory Correlated Computed Tomography (RCCT) Imaging. It is hypothesized that the…

Image and Video Processing · Electrical Eng. & Systems 2019-09-27 Markus D. Foote , Pouya Sabouri , Amit Sawant , Sarang C. Joshi

World models for deformable objects should recover not only geometry and appearance, but also underlying physical dynamics, interaction grounding, and material behavior. Learning such a model from real videos is challenging because…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Can Li , Zhoujian Li , Ren Li , Jie Gu , Lei Lei , Jingmin Chen , Lei Sun

This paper presents the principal challenges and opportunities associated with computational biomechanics research. The underlying cognitive control involved in the process of human motion is inherently complex, dynamic, multidimensional,…

Conventional deformable registration methods aim at solving an optimization model carefully designed on image pairs and their computational costs are exceptionally high. In contrast, recent deep learning based approaches can provide fast…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Risheng Liu , Zi Li , Xin Fan , Chenying Zhao , Hao Huang , Zhongxuan Luo

Deformable objects manipulation can benefit from representations that seamlessly integrate vision and touch while handling occlusions. In this work, we present a novel approach for, and real-world demonstration of, multimodal visuo-tactile…

Robotics · Computer Science 2022-10-10 Youngsun Wi , Andy Zeng , Pete Florence , Nima Fazeli

We present a formalism for coupling a density functional theory-based quantum simulation to a classical simulation for the treatment of simple metallic systems. The formalism is applicable to multiscale simulations in which the part of the…

Materials Science · Physics 2009-11-10 Nicholas Choly , Gang Lu , Weinan E , Efthimios Kaxiras

With the field of rigid-body robotics having matured in the last fifty years, routing, planning, and manipulation of deformable objects have recently emerged as a more untouched research area in many fields ranging from surgical robotics to…

Robotics · Computer Science 2023-01-03 Azarakhsh Keipour , Maryam Bandari , Stefan Schaal

Traditional robotic mechanisms contain a series of rigid links connected by rotational joints that provide powered motion, all of which is controlled by a central processor. By contrast, analogous mechanisms found in nature, such as octopus…

Computational Engineering, Finance, and Science · Computer Science 2023-11-06 Anurag Bhattacharyya , Jin-Young Kim , Lee R. Alacoque , Kai A. James

Spatially distributed limited-cycle oscillators are seen in various physical and biological systems. In internal organs, mechanical motions are induced by the stimuli of spatially distributed limit-cycle oscillators. We study several…

Adaptation and Self-Organizing Systems · Physics 2017-04-05 Hidestugu Sakaguchi , Yuuki Mukae