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We present a novel method to learn Personalized Implicit Neural Avatars (PINA) from a short RGB-D sequence. This allows non-expert users to create a detailed and personalized virtual copy of themselves, which can be animated with realistic…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Zijian Dong , Chen Guo , Jie Song , Xu Chen , Andreas Geiger , Otmar Hilliges

Reconstructing 3D clothed humans from images is fundamental to applications like virtual try-on, avatar creation, and mixed reality. While recent advances have enhanced human body recovery, accurate reconstruction of garment geometry --…

Graphics · Computer Science 2025-05-16 Ren Li , Cong Cao , Corentin Dumery , Yingxuan You , Hao Li , Pascal Fua

Integrating high-level context information with low-level details is of central importance in semantic segmentation. Towards this end, most existing segmentation models apply bilinear up-sampling and convolutions to feature maps of…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Hanzhe Hu , Yinbo Chen , Jiarui Xu , Shubhankar Borse , Hong Cai , Fatih Porikli , Xiaolong Wang

In person re-identification (ReID) tasks, many works explore the learning of part features to improve the performance over global image features. Existing methods explicitly extract part features by either using a hand-designed image…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Dengjie Li , Siyu Chen , Yujie Zhong , Lin Ma

Image classification is a fundamental computer vision task and an important baseline for deep metric learning. In decades efforts have been made on enhancing image classification accuracy by using deep learning models while less attention…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Yunfeng Zhao , Huiyu Zhou , Fei Wu , Xifeng Wu

3D Hand pose estimation from a single depth image is an essential topic in computer vision and human-computer interaction. Although the rising of deep learning method boosts the accuracy a lot, the problem is still hard to solve due to the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Xingyuan Zhang , Fuhai Zhang

In recent years, implicit functions have drawn attention in the field of 3D reconstruction and have successfully been applied with Deep Learning. However, for incremental reconstruction, implicit function-based registrations have been…

Robotics · Computer Science 2022-06-01 Yijun Yuan , Andreas Nuechter

We present an approach to generate a 360-degree view of a person with a consistent, high-resolution appearance from a single input image. NeRF and its variants typically require videos or images from different viewpoints. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2023-11-16 Badour AlBahar , Shunsuke Saito , Hung-Yu Tseng , Changil Kim , Johannes Kopf , Jia-Bin Huang

With the rise of deep learning methods, person Re-Identification (ReID) performance has been improved tremendously in many public datasets. However, most public ReID datasets are collected in a short time window in which persons' appearance…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Zhengxu Yu , Yilun Zhao , Bin Hong , Zhongming Jin , Jianqiang Huang , Deng Cai , Xiaofei He , Xian-Sheng Hua

Accurately digitizing physical objects is central to many applications, including virtual/augmented reality, industrial design, and e-commerce. Prior research has demonstrated efficient and faithful reconstruction of objects' geometric…

Graphics · Computer Science 2024-06-26 Yunxiang Zhang , Xin Sun , Dengfeng Li , Xinge Yu , Qi Sun

Kinetic modeling enables \textit{in vivo} quantification of tracer uptake and glucose metabolism in [${}^{18}$F]Fluorodeoxyglucose ([${}^{18}$F]FDG) dynamic positron emission tomography (dPET) imaging of mice. However, kinetic modeling…

Quantitative Methods · Quantitative Biology 2025-10-27 Christian Salomonsen , Kristoffer K. Wickstrøm , Samuel Kuttner , Elisabeth Wetzer

Previous online 3D dense reconstruction methods struggle to achieve the balance between memory storage and surface quality, largely due to the usage of stagnant underlying geometry representation, such as TSDF (truncated signed distance…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Jiahui Huang , Shi-Sheng Huang , Haoxuan Song , Shi-Min Hu

This paper presents a framework for efficient 3D clothed avatar reconstruction. By combining the advantages of the high accuracy of optimization-based methods and the efficiency of learning-based methods, we propose a coarse-to-fine way to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Tingting Liao , Xiaomei Zhang , Yuliang Xiu , Hongwei Yi , Xudong Liu , Guo-Jun Qi , Yong Zhang , Xuan Wang , Xiangyu Zhu , Zhen Lei

Generalizable 3D object reconstruction from single-view RGB-D images remains a challenging task, particularly with real-world data. Current state-of-the-art methods develop Transformer-based implicit field learning, necessitating an…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Yushuang Wu , Luyue Shi , Junhao Cai , Weihao Yuan , Lingteng Qiu , Zilong Dong , Liefeng Bo , Shuguang Cui , Xiaoguang Han

Recently, there has been an increasing interest in image editing methods that employ pre-trained unconditional image generators (e.g., StyleGAN). However, applying these methods to translate images to multiple visual domains remains…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Yahui Liu , Yajing Chen , Linchao Bao , Nicu Sebe , Bruno Lepri , Marco De Nadai

In this paper we present a high fidelity and articulated 3D human foot model. The model is parameterised by a disentangled latent code in terms of shape, texture and articulated pose. While high fidelity models are typically created with…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Oliver Boyne , James Charles , Roberto Cipolla

High-fidelity face digitization solutions often combine multi-view stereo (MVS) techniques for 3D reconstruction and a non-rigid registration step to establish dense correspondence across identities and expressions. A common problem is the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Tianye Li , Shichen Liu , Timo Bolkart , Jiayi Liu , Hao Li , Yajie Zhao

Recent advances in 3D deep learning have shown that it is possible to train highly effective deep models for 3D shape generation, directly from 2D images. This is particularly interesting since the availability of 3D models is still limited…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Shichen Liu , Shunsuke Saito , Weikai Chen , Hao Li

We present FITE, a First-Implicit-Then-Explicit framework for modeling human avatars in clothing. Our framework first learns implicit surface templates representing the coarse clothing topology, and then employs the templates to guide the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Siyou Lin , Hongwen Zhang , Zerong Zheng , Ruizhi Shao , Yebin Liu

In this paper, we propose an efficient method for robust 3D self-portraits using a single RGBD camera. Benefiting from the proposed PIFusion and lightweight bundle adjustment algorithm, our method can generate detailed 3D self-portraits in…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Zhe Li , Tao Yu , Chuanyu Pan , Zerong Zheng , Yebin Liu