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Neural radiance fields (NeRF) bring a new wave for 3D interactive experiences. However, as an important part of the immersive experiences, the defocus effects have not been fully explored within NeRF. Some recent NeRF-based methods generate…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Yinhuai Wang , Shuzhou Yang , Yujie Hu , Jian Zhang

In view synthesis, a neural radiance field approximates underlying density and radiance fields based on a sparse set of scene pictures. To generate a pixel of a novel view, it marches a ray through the pixel and computes a weighted sum of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Nikita Morozov , Denis Rakitin , Oleg Desheulin , Dmitry Vetrov , Kirill Struminsky

Reconstructing 3D humans from a single image has been extensively investigated. However, existing approaches often fall short on capturing fine geometry and appearance details, hallucinating occluded parts with plausible details, and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Zhenzhen Weng , Jingyuan Liu , Hao Tan , Zhan Xu , Yang Zhou , Serena Yeung-Levy , Jimei Yang

We propose a novel Deformed Implicit Field (DIF) representation for modeling 3D shapes of a category and generating dense correspondences among shapes. With DIF, a 3D shape is represented by a template implicit field shared across the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Yu Deng , Jiaolong Yang , Xin Tong

We present animatable neural radiance fields (animatable NeRF) for detailed human avatar creation from monocular videos. Our approach extends neural radiance fields (NeRF) to the dynamic scenes with human movements via introducing explicit…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Jianchuan Chen , Ying Zhang , Di Kang , Xuefei Zhe , Linchao Bao , Xu Jia , Huchuan Lu

Computed tomography (CT) is an effective medical imaging modality, widely used in the field of clinical medicine for the diagnosis of various pathologies. Advances in Multidetector CT imaging technology have enabled additional…

Image and Video Processing · Electrical Eng. & Systems 2022-04-11 Abril Corona-Figueroa , Jonathan Frawley , Sam Bond-Taylor , Sarath Bethapudi , Hubert P. H. Shum , Chris G. Willcocks

Reconstruction of deformable scenes from endoscopic videos is important for many applications such as intraoperative navigation, surgical visual perception, and robotic surgery. It is a foundational requirement for realizing autonomous…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Shreya Saha , Zekai Liang , Shan Lin , Jingpei Lu , Michael Yip , Sainan Liu

Photorealistic rendering of dynamic humans is an important ability for telepresence systems, virtual shopping, synthetic data generation, and more. Recently, neural rendering methods, which combine techniques from computer graphics and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-21 Ziyan Wang , Timur Bagautdinov , Stephen Lombardi , Tomas Simon , Jason Saragih , Jessica Hodgins , Michael Zollhöfer

The creation of lifelike human avatars capable of realistic pose variation and viewpoint flexibility remains a fundamental challenge in computer vision and graphics. Current approaches typically yield either geometrically inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Chia-Hern Lai , I-Hsuan Lo , Yen-Ku Yeh , Thanh-Nguyen Truong , Ching-Chun Huang

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

We present MVSNeRF, a novel neural rendering approach that can efficiently reconstruct neural radiance fields for view synthesis. Unlike prior works on neural radiance fields that consider per-scene optimization on densely captured images,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Anpei Chen , Zexiang Xu , Fuqiang Zhao , Xiaoshuai Zhang , Fanbo Xiang , Jingyi Yu , Hao Su

We present a novel semantic model for human head defined with neural radiance field. The 3D-consistent head model consist of a set of disentangled and interpretable bases, and can be driven by low-dimensional expression coefficients. Thanks…

Graphics · Computer Science 2022-10-13 Xuan Gao , Chenglai Zhong , Jun Xiang , Yang Hong , Yudong Guo , Juyong Zhang

A human 3D avatar is one of the important elements in the metaverse, and the modeling effect directly affects people's visual experience. However, the human body has a complex topology and diverse details, so it is often expensive,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Mingyang Sun , Dingkang Yang , Dongliang Kou , Yang Jiang , Weihua Shan , Zhe Yan , Lihua Zhang

Neural radiance fields (NeRF) encode a scene into a neural representation that enables photo-realistic rendering of novel views. However, a successful reconstruction from RGB images requires a large number of input views taken under static…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Barbara Roessle , Jonathan T. Barron , Ben Mildenhall , Pratul P. Srinivasan , Matthias Nießner

Reconstructing 3D human heads in low-view settings presents technical challenges, mainly due to the pronounced risk of overfitting with limited views and high-frequency signals. To address this, we propose geometry decomposition and adopt a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Baixin Xu , Jiarui Zhang , Kwan-Yee Lin , Chen Qian , Ying He

This paper introduces a novel continual learning framework for synthesising novel views of multiple scenes, learning multiple 3D scenes incrementally, and updating the network parameters only with the training data of the upcoming new…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Yuze Wang , Junyi Wang , Chen Wang , Wantong Duan , Yongtang Bao , Yue Qi

Recently, significant progress has been made in the study of methods for 3D reconstruction from multiple images using implicit neural representations, exemplified by the neural radiance field (NeRF) method. Such methods, which are based on…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Wooseok Kim , Taiki Fukiage , Takeshi Oishi

The method of neural radiance fields (NeRF) has been developed in recent years, and this technology has promising applications for synthesizing novel views of complex scenes. However, NeRF requires dense input views, typically numbering in…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Young Chun Ahn , Seokhwan Jang , Sungheon Park , Ji-Yeon Kim , Nahyup Kang

Neural Radiance Field (NeRF) has gained considerable attention recently for 3D scene reconstruction and novel view synthesis due to its remarkable synthesis quality. However, image blurriness caused by defocus or motion, which often occurs…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Li Ma , Xiaoyu Li , Jing Liao , Qi Zhang , Xuan Wang , Jue Wang , Pedro V. Sander

We present dynamic neural radiance fields for modeling the appearance and dynamics of a human face. Digitally modeling and reconstructing a talking human is a key building-block for a variety of applications. Especially, for telepresence…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Guy Gafni , Justus Thies , Michael Zollhöfer , Matthias Nießner
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