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Authoring an appealing animation for a virtual character is a challenging task. In computer-aided keyframe animation artists define the key poses of a character by manipulating its underlying skeletons. To look plausible, a character pose…

Graphics · Computer Science 2021-07-02 Léon Victor , Alexandre Meyer , Saïda Bouakaz

The last several years have seen significant progress in using depth cameras for tracking articulated objects such as human bodies, hands, and robotic manipulators. Most approaches focus on tracking skeletal parameters of a fixed shape…

Computer Vision and Pattern Recognition · Computer Science 2017-11-23 Aaron Walsman , Weilin Wan , Tanner Schmidt , Dieter Fox

Deep learning techniques are being used in skeleton based action recognition tasks and outstanding performance has been reported. Compared with RNN based methods which tend to overemphasize temporal information, CNN-based approaches can…

Computer Vision and Pattern Recognition · Computer Science 2017-05-03 Zewei Ding , Pichao Wang , Philip O. Ogunbona , Wanqing Li

Substantial progress has been made on modeling rigid 3D objects using deep implicit representations. Yet, extending these methods to learn neural models of human shape is still in its infancy. Human bodies are complex and the key challenge…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Marko Mihajlovic , Yan Zhang , Michael J. Black , Siyu Tang

Compared to joint position, the accuracy of joint rotation and shape estimation has received relatively little attention in the skinned multi-person linear model (SMPL)-based human mesh reconstruction from multi-view images. The work in…

Computer Vision and Pattern Recognition · Computer Science 2022-08-25 Sungho Chun , Sungbum Park , Ju Yong Chang

Choosing the right representation for geometry is crucial for making 3D models compatible with existing applications. Focusing on piecewise-smooth man-made shapes, we propose a new representation that is usable in conventional CAD modeling…

Graphics · Computer Science 2021-02-11 Dmitriy Smirnov , Mikhail Bessmeltsev , Justin Solomon

This paper presents a learning-based clothing animation method for highly efficient virtual try-on simulation. Given a garment, we preprocess a rich database of physically-based dressed character simulations, for multiple body shapes and…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Igor Santesteban , Miguel A. Otaduy , Dan Casas

This paper shows that it is possible to learn models for monocular 3D reconstruction of articulated objects (e.g., horses, cows, sheep), using as few as 50-150 images labeled with 2D keypoints. Our proposed approach involves training…

Computer Vision and Pattern Recognition · Computer Science 2023-04-28 Anastasis Stathopoulos , Georgios Pavlakos , Ligong Han , Dimitris Metaxas

Neural representations have emerged as a new paradigm for applications in rendering, imaging, geometric modeling, and simulation. Compared to traditional representations such as meshes, point clouds, or volumes they can be flexibly…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Julien N. P. Martel , David B. Lindell , Connor Z. Lin , Eric R. Chan , Marco Monteiro , Gordon Wetzstein

We propose a novel method for learning representations of poses for 3D deformable objects, which specializes in 1) disentangling pose information from the object's identity, 2) facilitating the learning of pose variations, and 3)…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Seungwoo Yoo , Juil Koo , Kyeongmin Yeo , Minhyuk Sung

Efficient representation of articulated objects such as human bodies is an important problem in computer vision and graphics. To efficiently simulate deformation, existing approaches represent 3D objects using polygonal meshes and deform…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Boyang Deng , JP Lewis , Timothy Jeruzalski , Gerard Pons-Moll , Geoffrey Hinton , Mohammad Norouzi , Andrea Tagliasacchi

Implicit neural representation is a recent approach to learn shape collections as zero level-sets of neural networks, where each shape is represented by a latent code. So far, the focus has been shape reconstruction, while shape…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Matan Atzmon , David Novotny , Andrea Vedaldi , Yaron Lipman

In computer graphics, animation compression is essential for efficient storage, streaming and reproduction of animated meshes. Previous work has presented efficient techniques for compression by deriving skinning transformations and weights…

Graphics · Computer Science 2023-11-09 Anastasia Moutafidou , Vasileios Toulatzis , Ioannis Fudos

We present the first method that automatically transfers poses between stylized 3D characters without skeletal rigging. In contrast to previous attempts to learn pose transformations on fixed or topology-equivalent skeleton templates, our…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Zhouyingcheng Liao , Jimei Yang , Jun Saito , Gerard Pons-Moll , Yang Zhou

Neural implicit fields are powerful for representing 3D scenes and generating high-quality novel views, but it remains challenging to use such implicit representations for creating a 3D human avatar with a specific identity and artistic…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Ruixiang Jiang , Can Wang , Jingbo Zhang , Menglei Chai , Mingming He , Dongdong Chen , Jing Liao

Secondary animation effects are essential for liveliness. We propose a simple, real-time solution for adding them on top of standard skinning, enabling artist-driven stylization of skeletal motion. Our method takes a standard skeleton…

3D content creation is referred to as one of the most fundamental tasks of computer graphics. And many 3D modeling algorithms from 2D images or curves have been developed over the past several decades. Designers are allowed to align some…

Graphics · Computer Science 2018-06-25 Zhongping Ji , Xiao Qi , Yigang Wang , Gang Xu , Peng Du , Qing Wu

The attention mechanism provides a sequential prediction framework for learning spatial models with enhanced implicit temporal consistency. In this work, we show a systematic design (from 2D to 3D) for how conventional networks and other…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Ruixu Liu , Ju Shen , He Wang , Chen Chen , Sen-ching Cheung , Vijayan K. Asari

We present MoRig, a method that automatically rigs character meshes driven by single-view point cloud streams capturing the motion of performing characters. Our method is also able to animate the 3D meshes according to the captured point…

Graphics · Computer Science 2022-10-19 Zhan Xu , Yang Zhou , Li Yi , Evangelos Kalogerakis

Although commercial and open-source software exist to reconstruct a static object from a sequence recorded with an RGB-D sensor, there is a lack of tools that build rigged models of articulated objects that deform realistically and can be…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Dimitrios Tzionas , Juergen Gall
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