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Avatars are important to create interactive and immersive experiences in virtual worlds. One challenge in animating these characters to mimic a user's motion is that commercial AR/VR products consist only of a headset and controllers,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Daniele Reda , Jungdam Won , Yuting Ye , Michiel van de Panne , Alexander Winkler

Referring expressions are commonly used when referring to a specific target in people's daily dialogue. In this paper, we develop a novel task of audio-visual grounding referring expression for robotic manipulation. The robot leverages both…

Robotics · Computer Science 2021-09-23 Yefei Wang , Kaili Wang , Yi Wang , Di Guo , Huaping Liu , Fuchun Sun

We propose an end-to-end deep-learning approach for automatic rigging and retargeting of 3D models of human faces in the wild. Our approach, called Neural Face Rigging (NFR), holds three key properties: (i) NFR's expression space maintains…

Graphics · Computer Science 2023-05-16 Dafei Qin , Jun Saito , Noam Aigerman , Thibault Groueix , Taku Komura

Capturing and preserving motion semantics is essential to motion retargeting between animation characters. However, most of the previous works neglect the semantic information or rely on human-designed joint-level representations. Here, we…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Haodong Zhang , ZhiKe Chen , Haocheng Xu , Lei Hao , Xiaofei Wu , Songcen Xu , Zhensong Zhang , Yue Wang , Rong Xiong

Creating believable motions for various characters has long been a goal in computer graphics. Current learning-based motion synthesis methods depend on extensive motion datasets, which are often challenging, if not impossible, to obtain. On…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Qingqing Zhao , Peizhuo Li , Wang Yifan , Olga Sorkine-Hornung , Gordon Wetzstein

We present a method for reproducing complex multi-character interactions for physically simulated humanoid characters using deep reinforcement learning. Our method learns control policies for characters that imitate not only individual…

Graphics · Computer Science 2023-06-01 Yunbo Zhang , Deepak Gopinath , Yuting Ye , Jessica Hodgins , Greg Turk , Jungdam Won

In this paper, we present an end-to-end pipeline for the creation of high-quality animatable volumetric video content of human performances. Going beyond the application of free-viewpoint volumetric video, we allow re-animation and…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Anna Hilsmann , Philipp Fechteler , Wieland Morgenstern , Wolfgang Paier , Ingo Feldmann , Oliver Schreer , Peter Eisert

Recent progress in video diffusion models has markedly advanced character animation, which synthesizes motioned videos by animating a static identity image according to a driving video. Explicit methods represent motion using skeleton,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Zhufeng Xu , Xuan Gao , Feng-Lin Liu , Haoxian Zhang , Zhixue Fang , Yu-Kun Lai , Xiaoqiang Liu , Pengfei Wan , Lin Gao

Creating high-quality controllable 3D human models from multi-view RGB videos poses a significant challenge. Neural radiance fields (NeRFs) have demonstrated remarkable quality in reconstructing and free-viewpoint rendering of static as…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Paul Knoll , Wieland Morgenstern , Anna Hilsmann , Peter Eisert

Retargeting motion across characters with varying body shapes while preserving interaction semantics, such as self-contact and near-body proximity, remains a challenging problem. While recent geometry-aware approaches address this by…

Graphics · Computer Science 2026-05-20 Soojin Choi , Seokhyeon Hong , Chaelin Kim , Junghyun Nam , Junhyuk Jeon , Junyong Noh

Humanoid motion tracking policies are central to building teleoperation pipelines and hierarchical controllers, yet they face a fundamental challenge: the embodiment gap between humans and humanoid robots. Current approaches address this…

Robotics · Computer Science 2025-10-03 Joao Pedro Araujo , Yanjie Ze , Pei Xu , Jiajun Wu , C. Karen Liu

Person re-identification (reID) aims to match person images to retrieve the ones with the same identity. This is a challenging task, as the images to be matched are generally semantically misaligned due to the diversity of human poses and…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Xin Jin , Cuiling Lan , Wenjun Zeng , Guoqiang Wei , Zhibo Chen

Hand motion capture data is now relatively easy to obtain, even for complicated grasps; however this data is of limited use without the ability to retarget it onto the hands of a specific character or robot. The target hand may differ…

Graphics · Computer Science 2024-02-08 Arjun S. Lakshmipathy , Jessica K. Hodgins , Nancy S. Pollard

GAN inversion is indispensable for applying the powerful editability of GAN to real images. However, existing methods invert video frames individually often leading to undesired inconsistent results over time. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Yangyang Xu , Shengfeng He , Kwan-Yee K. Wong , Ping Luo

StyleGAN generates photorealistic portrait images of faces with eyes, teeth, hair and context (neck, shoulders, background), but lacks a rig-like control over semantic face parameters that are interpretable in 3D, such as face pose,…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Ayush Tewari , Mohamed Elgharib , Gaurav Bharaj , Florian Bernard , Hans-Peter Seidel , Patrick Pérez , Michael Zollhöfer , Christian Theobalt

Reinforcement Learning (RL) in games has gained significant momentum in recent years, enabling the creation of different agent behaviors that can transform a player's gaming experience. However, deploying RL agents in production…

Artificial Intelligence · Computer Science 2025-07-01 António Afonso , Iolanda Leite , Alessandro Sestini , Florian Fuchs , Konrad Tollmar , Linus Gisslén

We propose FaceVR, a novel image-based method that enables video teleconferencing in VR based on self-reenactment. State-of-the-art face tracking methods in the VR context are focused on the animation of rigged 3d avatars. While they…

Computer Vision and Pattern Recognition · Computer Science 2018-03-23 Justus Thies , Michael Zollhöfer , Marc Stamminger , Christian Theobalt , Matthias Nießner

A longstanding goal in character animation is to combine data-driven specification of behavior with a system that can execute a similar behavior in a physical simulation, thus enabling realistic responses to perturbations and environmental…

Graphics · Computer Science 2018-08-07 Xue Bin Peng , Pieter Abbeel , Sergey Levine , Michiel van de Panne

Motion retargeting from humans to human-like artificial agents is becoming increasingly important as humanoid robots grow more capable. However, most existing approaches focus only on reproducing kinematics and ignore the rich sensorimotor…

Person re-identification (re-ID) is a challenging task in real-world. Besides the typical application in surveillance system, re-ID also has significant values to improve the recall rate of people identification in content video (TV or…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Chaoping Tu , Yin Zhao , Longjun Cai