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Human parsing aims to partition humans in image or video into multiple pixel-level semantic parts. In the last decade, it has gained significantly increased interest in the computer vision community and has been utilized in a broad range of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Lu Yang , Wenhe Jia , Shan Li , Qing Song

We introduce a novel framework that learns a dynamic neural radiance field (NeRF) for full-body talking humans from monocular videos. Prior work represents only the body pose or the face. However, humans communicate with their full body,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Aggelina Chatziagapi , Bindita Chaudhuri , Amit Kumar , Rakesh Ranjan , Dimitris Samaras , Nikolaos Sarafianos

We introduce HOSNeRF, a novel 360{\deg} free-viewpoint rendering method that reconstructs neural radiance fields for dynamic human-object-scene from a single monocular in-the-wild video. Our method enables pausing the video at any frame and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Jia-Wei Liu , Yan-Pei Cao , Tianyuan Yang , Eric Zhongcong Xu , Jussi Keppo , Ying Shan , Xiaohu Qie , Mike Zheng Shou

We propose a new method for reconstructing controllable implicit 3D human models from sparse multi-view RGB videos. Our method defines the neural scene representation on the mesh surface points and signed distances from the surface of a…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Tianhan Xu , Yasuhiro Fujita , Eiichi Matsumoto

4D reconstruction and rendering of human activities is critical for immersive VR/AR experience.Recent advances still fail to recover fine geometry and texture results with the level of detail present in the input images from sparse…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Xin Suo , Yuheng Jiang , Pei Lin , Yingliang Zhang , Kaiwen Guo , Minye Wu , Lan Xu

In this paper, we propose HeadNeRF, a novel NeRF-based parametric head model that integrates the neural radiance field to the parametric representation of the human head. It can render high fidelity head images in real-time on modern GPUs,…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Yang Hong , Bo Peng , Haiyao Xiao , Ligang Liu , Juyong Zhang

We present a method for recovering the shape and radiance of a scene consisting of multiple people given solely a few images. Multi-human scenes are complex due to additional occlusion and clutter. For single-human settings, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Qian li , Victoria Fernàndez Abrevaya , Franck Multon , Adnane Boukhayma

Recently, implicit neural representation has been widely used to generate animatable human avatars. However, the materials and geometry of those representations are coupled in the neural network and hard to edit, which hinders their…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Qifeng Chen , Rengan Xie , Kai Huang , Qi Wang , Wenting Zheng , Rong Li , Yuchi Huo

In this paper, we aim to learn a semantic radiance field from multiple scenes that is accurate, efficient and generalizable. While most existing NeRFs target at the tasks of neural scene rendering, image synthesis and multi-view…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Fangfu Liu , Chubin Zhang , Yu Zheng , Yueqi Duan

3D understanding and rendering of moving humans from monocular videos is a challenging task. Despite recent progress, the task remains difficult in real-world scenarios, where obstacles may block the camera view and cause partial occlusions…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Tiange Xiang , Adam Sun , Jiajun Wu , Ehsan Adeli , Li Fei-Fei

No augmented application is possible without animated humanoid avatars. At the same time, generating human replicas from real-world monocular hand-held or robotic sensor setups is challenging due to the limited availability of views.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Alessandro Sanvito , Andrea Ramazzina , Stefanie Walz , Mario Bijelic , Felix Heide

In this work, we focus on synthesizing high-fidelity novel view images for arbitrary human performers, given a set of sparse multi-view images. It is a challenging task due to the large variation among articulated body poses and heavy…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Jianchuan Chen , Wentao Yi , Liqian Ma , Xu Jia , Huchuan Lu

Synthesizing realistic videos of humans using neural networks has been a popular alternative to the conventional graphics-based rendering pipeline due to its high efficiency. Existing works typically formulate this as an image-to-image…

Existing neural human rendering methods struggle with a single image input due to the lack of information in invisible areas and the depth ambiguity of pixels in visible areas. In this regard, we propose Monocular Neural Human Renderer…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Hongsuk Choi , Gyeongsik Moon , Matthieu Armando , Vincent Leroy , Kyoung Mu Lee , Gregory Rogez

We focus on reconstructing high-fidelity radiance fields of human heads, capturing their animations over time, and synthesizing re-renderings from novel viewpoints at arbitrary time steps. To this end, we propose a new multi-view capture…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Tobias Kirschstein , Shenhan Qian , Simon Giebenhain , Tim Walter , Matthias Nießner

Despite the rapid development of Neural Radiance Field (NeRF), the necessity of dense covers largely prohibits its wider applications. While several recent works have attempted to address this issue, they either operate with sparse views…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Dejia Xu , Yifan Jiang , Peihao Wang , Zhiwen Fan , Humphrey Shi , Zhangyang Wang

We present HumanNeRF-SE, a simple yet effective method that synthesizes diverse novel pose images with simple input. Previous HumanNeRF works require a large number of optimizable parameters to fit the human images. Instead, we reload these…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Caoyuan Ma , Yu-Lun Liu , Zhixiang Wang , Wu Liu , Xinchen Liu , Zheng Wang

Convenient 4D modeling of human-object interactions is essential for numerous applications. However, monocular tracking and rendering of complex interaction scenarios remain challenging. In this paper, we propose Instant-NVR, a neural…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Yuheng Jiang , Kaixin Yao , Zhuo Su , Zhehao Shen , Haimin Luo , Lan Xu

This paper addresses the challenge of novel view synthesis for a human performer from a very sparse set of camera views. Some recent works have shown that learning implicit neural representations of 3D scenes achieves remarkable view…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Sida Peng , Yuanqing Zhang , Yinghao Xu , Qianqian Wang , Qing Shuai , Hujun Bao , Xiaowei Zhou

Extensions of Neural Radiance Fields (NeRFs) to model dynamic scenes have enabled their near photo-realistic, free-viewpoint rendering. Although these methods have shown some potential in creating immersive experiences, two drawbacks limit…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Xinhang Liu , Yu-Wing Tai , Chi-Keung Tang , Pedro Miraldo , Suhas Lohit , Moitreya Chatterjee