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Quickly and reliably finding accurate inverse kinematics (IK) solutions remains a challenging problem for robotic manipulation. Existing numerical solvers typically produce a single solution only and rely on local search techniques to…

Robotics · Computer Science 2023-07-06 Oliver Limoyo , Filip Marić , Matthew Giamou , Petra Alexson , Ivan Petrović , Jonathan Kelly

The synthesis of human motion has traditionally been addressed through task-dependent models that focus on specific challenges, such as predicting future motions or filling in intermediate poses conditioned on known key-poses. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Esteve Valls Mascaro , Hyemin Ahn , Dongheui Lee

To facilitate the analysis of human actions, interactions and emotions, we compute a 3D model of human body pose, hand pose, and facial expression from a single monocular image. To achieve this, we use thousands of 3D scans to train a new,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Georgios Pavlakos , Vasileios Choutas , Nima Ghorbani , Timo Bolkart , Ahmed A. A. Osman , Dimitrios Tzionas , Michael J. Black

Current methods for learning realistic and animatable 3D clothed avatars need either posed 3D scans or 2D images with carefully controlled user poses. In contrast, our goal is to learn an avatar from only 2D images of people in…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Yuliang Xiu , Jinlong Yang , Dimitrios Tzionas , Michael J. Black

This paper introduces a novel Pre-trained Spatial Temporal Many-to-One (P-STMO) model for 2D-to-3D human pose estimation task. To reduce the difficulty of capturing spatial and temporal information, we divide this task into two stages:…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Wenkang Shan , Zhenhua Liu , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

Although existing video-based 3D human mesh recovery methods have made significant progress, simultaneously estimating human pose and shape from low-resolution image features limits their performance. These image features lack sufficient…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Tao Tang , Hong Liu , Yingxuan You , Ti Wang , Wenhao Li

This paper proposes a shoulder inverse kinematics (IK) technique. Shoulder complex is comprised of the sternum, clavicle, ribs, scapula, humerus, and four joints. The shoulder complex shows specific motion pattern, such as Scapulo humeral…

Graphics · Computer Science 2016-12-23 YoungBeom Kim , Byung-Ha Park , Kwang-Mo Jung , JungHyun Han

Inverse kinematics - finding joint poses that reach a given Cartesian-space end-effector pose - is a common operation in robotics, since goals and waypoints are typically defined in Cartesian space, but robots must be controlled in joint…

Robotics · Computer Science 2022-08-30 Barrett Ames , Jeremy Morgan , George Konidaris

Human skeleton point clouds are commonly used to automatically classify and predict the behaviour of others. In this paper, we use a contrastive self-supervised learning method, SimCLR, to learn representations that capture the semantics of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Nico Lingg , Miguel Sarabia , Luca Zappella , Barry-John Theobald

For robust visual-inertial SLAM in perceptually-challenging indoor environments,recent studies exploit line features to extract descriptive information about scene structure to deal with the degeneracy of point features. But existing…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Wanting Li , Shuo Wang , Yongcai Wang , Yu Shao , Xuewei Bai , Deying Li

This chapter presents an overview of Interactive Machine Learning (IML) techniques applied to the analysis and design of musical gestures. We go through the main challenges and needs related to capturing, analysing, and applying IML…

Machine Learning · Computer Science 2020-11-30 Federico Ghelli Visi , Atau Tanaka

Human skeletons and RGB sequences are both widely-adopted input modalities for human action recognition. However, skeletons lack appearance features and color data suffer large amount of irrelevant depiction. To address this, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Runwei Ding , Yuhang Wen , Jinfu Liu , Nan Dai , Fanyang Meng , Mengyuan Liu

An effective 3D stepping control algorithm that is computationally fast, robust, and easy to implement is extremely important and valuable to character animation research. In this paper, we present a novel technique for generating dynamic,…

Graphics · Computer Science 2022-10-27 Ben Kenwright

We consider the problem of inverse kinematics (IK), where one wants to find the parameters of a given kinematic skeleton that best explain a set of observed 3D joint locations. The kinematic skeleton has a tree structure, where each node is…

Machine Learning · Computer Science 2019-10-25 Tarun Yenamandra , Florian Bernard , Jiayi Wang , Franziska Mueller , Christian Theobalt

Model-based 3D pose and shape estimation methods reconstruct a full 3D mesh for the human body by estimating several parameters. However, learning the abstract parameters is a highly non-linear process and suffers from image-model…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Jiefeng Li , Chao Xu , Zhicun Chen , Siyuan Bian , Lixin Yang , Cewu Lu

Contrastive learning has gained significant attention in skeleton-based action recognition for its ability to learn robust representations from unlabeled data. However, existing methods rely on a single skeleton convention, which limits…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Mert Kiray , Alvaro Ritter , Nassir Navab , Benjamin Busam

A key challenge in the task of human pose and shape estimation is occlusion, including self-occlusions, object-human occlusions, and inter-person occlusions. The lack of diverse and accurate pose and shape training data becomes a major…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Kaibing Yang , Renshu Gu , Maoyu Wang , Masahiro Toyoura , Gang Xu

Broader access to high-quality movement analysis could greatly benefit movement science and rehabilitation, such as allowing more detailed characterization of movement impairments and responses to interventions, or even enabling early…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 R. James Cotton

Our work focuses on the development of a learnable neural representation of human pose for advanced AI assisted animation tooling. Specifically, we tackle the problem of constructing a full static human pose based on sparse and variable…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Boris N. Oreshkin , Florent Bocquelet , Félix G. Harvey , Bay Raitt , Dominic Laflamme

Real-time humanoid teleoperation requires inverse kinematics (IK) solvers that are both responsive and constraint-safe under kinematic redundancy and self-collision constraints. While differential IK enables efficient online retargeting,…

Robotics · Computer Science 2026-03-26 Junheng Li , Lizhi Yang , Aaron D. Ames