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Image- and video-based 3D human recovery (i.e., pose and shape estimation) have achieved substantial progress. However, due to the prohibitive cost of motion capture, existing datasets are often limited in scale and diversity. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Zhongang Cai , Mingyuan Zhang , Jiawei Ren , Chen Wei , Daxuan Ren , Zhengyu Lin , Haiyu Zhao , Lei Yang , Chen Change Loy , Ziwei Liu

Editable 3D-aware generation, which supports user-interacted editing, has witnessed rapid development recently. However, existing editable 3D GANs either fail to achieve high-accuracy local editing or suffer from huge computational costs.…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Fan Yang , Tianyi Chen , Xiaosheng He , Zhongang Cai , Lei Yang , Si Wu , Guosheng Lin

Unsupervised video domain adaptation (UVDA) is a practical but under-explored problem. In this paper, we propose a frustratingly easy UVDA method, called MetaTrans. Specifically, MetaTrans adopts a concise learning objective that contains…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Pengfei Wei , Yiqun Sun , Zhiqiang Xu , Yiping Ke , Lawrence B. Hsieh

Unsupervised domain adaptation for object detection addresses the adaption of detectors trained in a source domain to work accurately in an unseen target domain. Recently, methods approaching the alignment of the intermediate features…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Vinicius F. Arruda , Rodrigo F. Berriel , Thiago M. Paixão , Claudine Badue , Alberto F. De Souza , Nicu Sebe , Thiago Oliveira-Santos

Photo-real digital human avatars are of enormous importance in graphics, as they enable immersive communication over the globe, improve gaming and entertainment experiences, and can be particularly beneficial for AR and VR settings.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Marc Habermann , Lingjie Liu , Weipeng Xu , Gerard Pons-Moll , Michael Zollhoefer , Christian Theobalt

We present FlexAvatar, a flexible large reconstruction model for high-fidelity 3D head avatars with detailed dynamic deformation from single or sparse images, without requiring camera poses or expression labels. It leverages a…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Cheng Peng , Zhuo Su , Liao Wang , Chen Guo , Zhaohu Li , Chengjiang Long , Zheng Lv , Jingxiang Sun , Chenyangguang Zhang , Yebin Liu

We propose CrossHuman, a novel method that learns cross-guidance from parametric human model and multi-frame RGB images to achieve high-quality 3D human reconstruction. To recover geometry details and texture even in invisible regions, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Liliang Chen , Jiaqi Li , Han Huang , Yandong Guo

DreamFusion established a new paradigm for unsupervised 3D reconstruction from virtual views by combining advances in generative models and differentiable rendering. However, the underlying multi-view rendering, along with supervision from…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Ananta R. Bhattarai , Xingzhe He , Alla Sheffer , Helge Rhodin

Humans naturally decompose their environment into entities at the appropriate level of abstraction to act in the world. Allowing machine learning algorithms to derive this decomposition in an unsupervised way has become an important line of…

With contemporary advancements of graphics engines, recent trend in deep learning community is to train models on automatically annotated simulated examples and apply on real data during test time. This alleviates the burden of manual…

Computer Vision and Pattern Recognition · Computer Science 2018-10-19 Avisek Lahiri , Abhinav Agarwalla , Prabir Kumar Biswas

Recent advancements in 3D Gaussian Splatting (3DGS) have unlocked significant potential for modeling 3D head avatars, providing greater flexibility than mesh-based methods and more efficient rendering compared to NeRF-based approaches.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Peizhi Yan , Rabab Ward , Qiang Tang , Shan Du

Deep learning-based 3D object detection has achieved unprecedented success with the advent of large-scale autonomous driving datasets. However, drastic performance degradation remains a critical challenge for cross-domain deployment. In…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Zhipeng Luo , Zhongang Cai , Changqing Zhou , Gongjie Zhang , Haiyu Zhao , Shuai Yi , Shijian Lu , Hongsheng Li , Shanghang Zhang , Ziwei Liu

Neural 3D scene reconstruction methods have achieved impressive performance when reconstructing complex geometry and low-textured regions in indoor scenes. However, these methods heavily rely on 3D data which is costly and time-consuming to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Yi Guo , Che Sun , Yunde Jia , Yuwei Wu

We present a novel method for reconstructing personalized 3D human avatars with realistic animation from only a few images. Due to the large variations in body shapes, poses, and cloth types, existing methods mostly require hours of…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Rong Wang , Fabian Prada , Ziyan Wang , Zhongshi Jiang , Chengxiang Yin , Junxuan Li , Shunsuke Saito , Igor Santesteban , Javier Romero , Rohan Joshi , Hongdong Li , Jason Saragih , Yaser Sheikh

Realistic reconstruction of 3D clothing from an image has wide applications, such as avatar creation and virtual try-on. This paper presents a novel framework that reconstructs the texture map for 3D garments from a single image with pose.…

Graphics · Computer Science 2023-10-27 Hyun-Song Kwon , Sung-Hee Lee

Machine learning is driven by data, yet while their availability is constantly increasing, training data require laborious, time consuming and error-prone labelling or ground truth acquisition, which in some cases is very difficult or even…

Computer Vision and Pattern Recognition · Computer Science 2019-09-25 Vasileios Gkitsas , Antonis Karakottas , Nikolaos Zioulis , Dimitrios Zarpalas , Petros Daras

Multi-grained features extracted from convolutional neural networks (CNNs) have demonstrated their strong discrimination ability in supervised person re-identification (Re-ID) tasks. Inspired by them, this work investigates the way of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Jiachen Li , Menglin Wang , Xiaojin Gong

We present FHAvatar, a novel framework for reconstructing 3D Gaussian avatars with composable face and hair components from an arbitrary number of views. Unlike previous approaches that couple facial and hair representations within a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Yujie Sun , Zhuoqiang Cai , Chaoyue Niu , Jianchuan Chen , Zhiwen Chen , Chengfei Lv , Fan Wu

In the animation industry, 3D modelers typically rely on front and back non-overlapped concept designs to guide the 3D modeling of anime characters. However, there is currently a lack of automated approaches for generating anime characters…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Hongsheng Wang , Nanjie Yao , Xinrui Zhou , Shengyu Zhang , Huahao Xu , Fei Wu , Feng Lin

Recovering the shape and appearance of real-world objects from natural 2D images is a long-standing and challenging inverse rendering problem. In this paper, we introduce a novel hybrid differentiable rendering method to efficiently…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Xiangyang Zhu , Yiling Pan , Bailin Deng , Bin Wang