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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…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Tingting Liao , Xiaomei Zhang , Yuliang Xiu , Hongwei Yi , Xudong Liu , Guo-Jun Qi , Yong Zhang , Xuan Wang , Xiangyu Zhu , Zhen Lei

Person re-identification (re-ID) has gained more and more attention due to its widespread applications in intelligent video surveillance. Unfortunately, the mainstream deep learning methods still need a large quantity of labeled data to…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Qi Wang , Sikai Bai , Junyu Gao , Yuan Yuan , Xuelong Li

Reconstructing a complete 3D head from a single portrait remains challenging because existing methods still face a sharp quality-speed trade-off: high-fidelity pipelines often rely on multi-stage processing and per-subject optimization,…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Yujie Gao , Yao Xiao , Xiangnan Zhu , Ya Li , Yiyi Zhang , Liqing Zhang , Jianfu Zhang

We are living in a flourishing era of digital media, where everyone has the potential to become a personal filmmaker. Current research on video generation suggests a promising avenue for controllable film creation in pixel space using…

计算机视觉与模式识别 · 计算机科学 2025-07-03 Weiliang Chen , Fangfu Liu , Diankun Wu , Haowen Sun , Jiwen Lu , Yueqi Duan

The 3D-zoom operation is the positive translation of the camera in the Z-axis, perpendicular to the image plane. In contrast, the optical zoom changes the focal length and the digital zoom is used to enlarge a certain region of an image to…

图像与视频处理 · 电气工程与系统科学 2019-10-03 Juan Luis Gonzalez Bello , Munchurl Kim

In this paper, we introduce a novel unsupervised domain adaptation technique for the task of 3D keypoint prediction from a single depth scan or image. Our key idea is to utilize the fact that predictions from different views of the same or…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Xingyi Zhou , Arjun Karpur , Chuang Gan , Linjie Luo , Qixing Huang

Video-driven 3D facial animation transfer aims to drive avatars to reproduce the expressions of actors. Existing methods have achieved remarkable results by constraining both geometric and perceptual consistency. However, geometric…

图形学 · 计算机科学 2024-10-10 Feng Qiu , Wei Zhang , Chen Liu , Rudong An , Lincheng Li , Yu Ding , Changjie Fan , Zhipeng Hu , Xin Yu

We study the problem of unsupervised domain adaptive re-identification (re-ID) which is an active topic in computer vision but lacks a theoretical foundation. We first extend existing unsupervised domain adaptive classification theories to…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Liangchen Song , Cheng Wang , Lefei Zhang , Bo Du , Qian Zhang , Chang Huang , Xinggang Wang

Unsupervised domain adaptation algorithms aim to transfer the knowledge learned from one domain to another (e.g., synthetic to real images). The adapted representations often do not capture pixel-level domain shifts that are crucial for…

计算机视觉与模式识别 · 计算机科学 2020-01-13 Yun-Chun Chen , Yen-Yu Lin , Ming-Hsuan Yang , Jia-Bin Huang

The report proposes an effective solution about 3D human body reconstruction from multiple unconstrained frames for ECCV 2022 WCPA Challenge: From Face, Body and Fashion to 3D Virtual avatars I (track1: Multi-View Based 3D Human Body…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Han Huang , Liliang Chen , Xihao Wang

Different forms of customized 2D avatars are widely used in gaming applications, virtual communication, education, and content creation. However, existing approaches often fail to capture fine-grained facial expressions and struggle to…

计算机视觉与模式识别 · 计算机科学 2025-08-14 Hao Yu , Rupayan Mallick , Margrit Betke , Sarah Adel Bargal

Estimating 3D human texture from a single image is essential in graphics and vision. It requires learning a mapping function from input images of humans with diverse poses into the parametric (UV) space and reasonably hallucinating…

计算机视觉与模式识别 · 计算机科学 2023-03-08 Said Fahri Altindis , Adil Meric , Yusuf Dalva , Ugur Gudukbay , Aysegul Dundar

We target cross-domain face reenactment in this paper, i.e., driving a cartoon image with the video of a real person and vice versa. Recently, many works have focused on one-shot talking face generation to drive a portrait with a real…

计算机视觉与模式识别 · 计算机科学 2023-08-25 Yuan Gong , Yong Zhang , Xiaodong Cun , Fei Yin , Yanbo Fan , Xuan Wang , Baoyuan Wu , Yujiu Yang

Cross-domain retrieval (CDR), as a crucial tool for numerous technologies, is finding increasingly broad applications. However, existing efforts face several major issues, with the most critical being the need for accurate supervision,…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Lixu Wang , Xinyu Du , Qi Zhu

Existing approaches for human avatar generation--both NeRF-based and 3D Gaussian Splatting (3DGS) based--struggle with maintaining 3D consistency and exhibit degraded detail reconstruction, particularly when training with sparse inputs. To…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Haoyu Zhao , Hao Wang , Chen Yang , Wei Shen

Low quality depth poses a considerable challenge to computer vision algorithms. In this work we aim to enhance highly degraded, real-world depth images acquired by a low-cost sensor, for which an analytical noise model is unavailable. In…

计算机视觉与模式识别 · 计算机科学 2020-01-14 Alona Baruhov , Guy Gilboa

As a pioneering work, PointContrast conducts unsupervised 3D representation learning via leveraging contrastive learning over raw RGB-D frames and proves its effectiveness on various downstream tasks. However, the trend of large-scale…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Xiaoyang Wu , Xin Wen , Xihui Liu , Hengshuang Zhao

Differentiable rendering is a very successful technique that applies to a Single-View 3D Reconstruction. Current renderers use losses based on pixels between a rendered image of some 3D reconstructed object and ground-truth images from…

计算机视觉与模式识别 · 计算机科学 2021-05-03 Nikola Zubić , Pietro Liò

Traditionally, creating photo-realistic 3D head avatars requires a studio-level multi-view capture setup and expensive optimization during test-time, limiting the use of digital human doubles to the VFX industry or offline renderings. To…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Tobias Kirschstein , Javier Romero , Artem Sevastopolsky , Matthias Nießner , Shunsuke Saito

Human perception and understanding is a major domain of computer vision which, like many other vision subdomains recently, stands to gain from the use of large models pre-trained on large datasets. We hypothesize that the most common…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Matthieu Armando , Salma Galaaoui , Fabien Baradel , Thomas Lucas , Vincent Leroy , Romain Brégier , Philippe Weinzaepfel , Grégory Rogez