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Motion tracking has been an important technique for imitating human-like movement from large-scale datasets in physics-based motion synthesis. However, existing approaches focus on tracking either single character or a particular type of…

Graphics · Computer Science 2026-04-10 Xiaotang Zhang , Ziyi Chang , Qianhui Men , Hubert P. H. Shum

Rigging and skinning clothed human avatars is a challenging task and traditionally requires a lot of manual work and expertise. Recent methods addressing it either generalize across different characters or focus on capturing the dynamics of…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Zhouyingcheng Liao , Vladislav Golyanik , Marc Habermann , Christian Theobalt

Rigged puppets are one of the most prevalent representations to create 2D character animations. Creating these puppets requires partitioning characters into independently moving parts. In this work, we present a method to automatically…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Zhan Xu , Matthew Fisher , Yang Zhou , Deepali Aneja , Rushikesh Dudhat , Li Yi , Evangelos Kalogerakis

Proportional-Integrator-Derivative (PID) controller is used in a wide range of industrial and experimental processes. There are a couple of offline methods for tuning PID gains. However, due to the uncertainty of model parameters and…

Systems and Control · Electrical Eng. & Systems 2025-08-19 Iman Sharifi , Aria Alasty

Quadrupeds transition spontaneously to various gait patterns (e.g., walk, trot, pace, gallop) in response to the locomotion speed. The generation of these gait patterns has been the subject of debate for a long time. We propose a coupled…

Quantitative Methods · Quantitative Biology 2013-10-30 Atsushi Tero , Masakazu Akiyama , Dai Owaki , Takeshi Kano , Akio Ishiguro , Ryo Kobayashi

Human video generation task has gained significant attention with the advancement of deep generative models. Generating realistic videos with human movements is challenging in nature, due to the intricacies of human body topology and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Zhangsihao Yang , Mengyi Shan , Mohammad Farazi , Wenhui Zhu , Yanxi Chen , Xuanzhao Dong , Yalin Wang

Portrait animation from a single source image and a driving video is a long-standing problem. Recent approaches tend to adopt diffusion-based image/video generation models for realistic and expressive animation. However, none of these…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Yuxiang Shi , Zhe Li , Yanwen Wang , Hao Zhu , Xun Cao , Ligang Liu

We tackle the challenges of synthesizing versatile, physically simulated human motions for full-body object manipulation. Unlike prior methods that are focused on detailed motion tracking, trajectory following, or teleoperation, our…

Robotics · Computer Science 2025-12-12 Chen Tessler , Yifeng Jiang , Erwin Coumans , Zhengyi Luo , Gal Chechik , Xue Bin Peng

Can we enable humanoid robots to generate rich, diverse, and expressive motions in the real world? We propose to learn a whole-body control policy on a human-sized robot to mimic human motions as realistic as possible. To train such a…

Robotics · Computer Science 2024-03-07 Xuxin Cheng , Yandong Ji , Junming Chen , Ruihan Yang , Ge Yang , Xiaolong Wang

Teleoperated robotic characters can perform expressive interactions with humans, relying on the operators' experience and social intuition. In this work, we propose to create autonomous interactive robots, by training a model to imitate…

We present a simple and intuitive approach for interactive control of physically simulated characters. Our work builds upon generative adversarial networks (GAN) and reinforcement learning, and introduces an imitation learning framework…

Graphics · Computer Science 2022-01-03 Pei Xu , Ioannis Karamouzas

The kinematic features of a centaur-type humanoid platform, combined with a powerful actuation, enable the experimentation of a variety of agile and dynamic motions. However, the higher number of degrees-of-freedom and the increased weight…

Continuum and soft robots can leverage complex actuator shapes to take on useful shapes while actuating only a few of their many degrees of freedom. Continuum robots that also grow increase the range of potential shapes that can be actuated…

This paper presents a unified approach for inverse and direct dynamics of constrained multibody systems that can serve as a basis for analysis, simulation, and control. The main advantage of the formulation of the dynamic is that it does…

Systems and Control · Electrical Eng. & Systems 2022-11-01 Farhad Aghili

Creating realistic 3D facial animation is crucial for various applications in the movie production and gaming industry, especially with the burgeoning demand in the metaverse. However, prevalent methods such as blendshape-based approaches…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Haoyu Wang , Haozhe Wu , Junliang Xing , Jia Jia

Controllable character image animation has a wide range of applications. Although existing studies have consistently improved performance, challenges persist in the field of character image animation, particularly concerning stability in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Jingyun Xue , Hongfa Wang , Qi Tian , Yue Ma , Andong Wang , Zhiyuan Zhao , Shaobo Min , Wenzhe Zhao , Kaihao Zhang , Heung-Yeung Shum , Wei Liu , Mengyang Liu , Wenhan Luo

Facial expression editing methods can be mainly categorized into two types based on their architectures: 2D-based and 3D-based methods. The former lacks 3D face modeling capabilities, making it difficult to edit 3D factors effectively. The…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yikang He , Jichao Zhang , Wei Wang , Nicu Sebe , Yao Zhao

Tried-and-true flapping wing robot simulation is essential in developing flapping wing mechanisms and algorithms. This paper presents a novel application-oriented flapping wing platform, highly compatible with various mechanical designs and…

Robotics · Computer Science 2023-03-09 Chen Qian , Yongchun Fang , Fan jia , Jifu Yan , Yiming Liang , Tiefeng Li

We provide an algorithm for adaptive legged locomotion via online learning and model predictive control. The algorithm is composed of two interacting modules: model predictive control (MPC) and online learning of residual dynamics. The…

Robotics · Computer Science 2025-12-02 Hongyu Zhou , Xiaoyu Zhang , Vasileios Tzoumas

Can a quadrupedal robot perform bipedal motions like humans? Although developing human-like behaviors is more often studied on costly bipedal robot platforms, we present a solution over a lightweight quadrupedal robot that unlocks the…

Robotics · Computer Science 2024-03-05 Yunfei Li , Jinhan Li , Wei Fu , Yi Wu