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Novel view synthesis with sparse inputs poses great challenges to Neural Radiance Field (NeRF). Recent works demonstrate that the frequency regularization of Positional Encoding (PE) can achieve promising results for few-shot NeRF. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-10-24 Qingshan Xu , Xuanyu Yi , Jianyao Xu , Wenbing Tao , Yew-Soon Ong , Hanwang Zhang

The goal of our work is to generate high-quality novel views from monocular videos of complex and dynamic scenes. Prior methods, such as DynamicNeRF, have shown impressive performance by leveraging time-varying dynamic radiation fields.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Xingyu Miao , Yang Bai , Haoran Duan , Yawen Huang , Fan Wan , Yang Long , Yefeng Zheng

We propose a generalizable neural radiance fields - MonoNeRF, that can be trained on large-scale monocular videos of moving in static scenes without any ground-truth annotations of depth and camera poses. MonoNeRF follows an…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Yang Fu , Ishan Misra , Xiaolong Wang

Recent works on generalizable NeRFs have shown promising results on novel view synthesis from single or few images. However, such models have rarely been applied on other downstream tasks beyond synthesis such as semantic understanding and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Jianglong Ye , Naiyan Wang , Xiaolong Wang

We propose PAV, Personalized Head Avatar for the synthesis of human faces under arbitrary viewpoints and facial expressions. PAV introduces a method that learns a dynamic deformable neural radiance field (NeRF), in particular from a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Akin Caliskan , Berkay Kicanaoglu , Hyeongwoo Kim

In this paper, we address the challenge of generating novel views of real-world objects with limited multi-view images through our proposed approach, FewShotNeRF. Our method utilizes meta-learning to acquire optimal initialization,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Piraveen Sivakumar , Paul Janson , Jathushan Rajasegaran , Thanuja Ambegoda

We introduce GNeRF, a framework to marry Generative Adversarial Networks (GAN) with Neural Radiance Field (NeRF) reconstruction for the complex scenarios with unknown and even randomly initialized camera poses. Recent NeRF-based advances…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Quan Meng , Anpei Chen , Haimin Luo , Minye Wu , Hao Su , Lan Xu , Xuming He , Jingyi Yu

3D modeling holds significant importance in the realms of AR/VR and gaming, allowing for both artistic creativity and practical applications. However, the process is often time-consuming and demands a high level of skill. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Eddy Chu , Yiyang Chen , Chedy Raissi , Anand Bhojan

Neural radiance fields (NeRFs) are a widely accepted standard for synthesizing new 3D object views from a small number of base images. However, NeRFs have limited generalization properties, which means that we need to use significant…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Paweł Batorski , Dawid Malarz , Marcin Przewięźlikowski , Marcin Mazur , Sławomir Tadeja , Przemysław Spurek

We introduce a new method that generates photo-realistic humans under novel views and poses given a monocular video as input. Despite the significant progress recently on this topic, with several methods exploring shared canonical neural…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Tiantian Wang , Nikolaos Sarafianos , Ming-Hsuan Yang , Tony Tung

For reconstructing high-fidelity human 3D models from monocular videos, it is crucial to maintain consistent large-scale body shapes along with finely matched subtle wrinkles. This paper explores the observation that the per-frame rendering…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Chunjin Song , Zhijie Wu , Bastian Wandt , Leonid Sigal , Helge Rhodin

In this work, we introduce FourieRF, a novel approach for achieving fast and high-quality reconstruction in the few-shot setting. Our method effectively parameterizes features through an explicit curriculum training procedure, incrementally…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Diego Gomez , Bingchen Gong , Maks Ovsjanikov

Recent advances in generative visual models and neural radiance fields have greatly boosted 3D-aware image synthesis and stylization tasks. However, previous NeRF-based work is limited to single scene stylization, training a model to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Zichen Tang , Hongyu Yang

Novel view synthesis is a long-standing problem. In this work, we consider a variant of the problem where we are given only a few context views sparsely covering a scene or an object. The goal is to predict novel viewpoints in the scene,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Jonáš Kulhánek , Erik Derner , Torsten Sattler , Robert Babuška

We present AvatarReX, a new method for learning NeRF-based full-body avatars from video data. The learnt avatar not only provides expressive control of the body, hands and the face together, but also supports real-time animation and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Zerong Zheng , Xiaochen Zhao , Hongwen Zhang , Boning Liu , Yebin Liu

We introduce HumMorph, a novel generalized approach to free-viewpoint rendering of dynamic human bodies with explicit pose control. HumMorph renders a human actor in any specified pose given a few observed views (starting from just one) in…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Jakub Zadrożny , Hakan Bilen

In this study, we introduce BirdNeRF, an adaptation of Neural Radiance Fields (NeRF) designed specifically for reconstructing large-scale scenes using aerial imagery. Unlike previous research focused on small-scale and object-centric NeRF…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Huiqing Zhang , Yifei Xue , Ming Liao , Yizhen Lao

Generalizability and few-shot learning are key challenges in Neural Radiance Fields (NeRF), often due to the lack of a holistic understanding in pixel-level rendering. We introduce CaesarNeRF, an end-to-end approach that leverages…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Haidong Zhu , Tianyu Ding , Tianyi Chen , Ilya Zharkov , Ram Nevatia , Luming Liang

The paper proposes a novel generative adversarial network for one-shot face reenactment, which can animate a single face image to a different pose-and-expression (provided by a driving image) while keeping its original appearance. The core…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Guangming Yao , Yi Yuan , Tianjia Shao , Shuang Li , Shanqi Liu , Yong Liu , Mengmeng Wang , Kun Zhou

We introduce ViewNeRF, a Neural Radiance Field-based viewpoint estimation method that learns to predict category-level viewpoints directly from images during training. While NeRF is usually trained with ground-truth camera poses, multiple…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Octave Mariotti , Oisin Mac Aodha , Hakan Bilen