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We introduce a new task, novel view synthesis for LiDAR sensors. While traditional model-based LiDAR simulators with style-transfer neural networks can be applied to render novel views, they fall short of producing accurate and realistic…

Computer Vision and Pattern Recognition · Computer Science 2023-07-17 Tang Tao , Longfei Gao , Guangrun Wang , Yixing Lao , Peng Chen , Hengshuang Zhao , Dayang Hao , Xiaodan Liang , Mathieu Salzmann , Kaicheng Yu

Recently, Neural Radiance Fields (NeRF) has shown promising performances on reconstructing 3D scenes and synthesizing novel views from a sparse set of 2D images. Albeit effective, the performance of NeRF is highly influenced by the quality…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Xuran Pan , Zihang Lai , Shiji Song , Gao Huang

In this paper, we focus on the problem of rendering novel views from a Neural Radiance Field (NeRF) under unobserved light conditions. To this end, we introduce a novel dataset, dubbed ReNe (Relighting NeRF), framing real world objects…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Marco Toschi , Riccardo De Matteo , Riccardo Spezialetti , Daniele De Gregorio , Luigi Di Stefano , Samuele Salti

The task of extracting intrinsic components, such as reflectance and shading, from neural radiance fields is of growing interest. However, current methods largely focus on synthetic scenes and isolated objects, overlooking the complexities…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Yixiong Yang , Shilin Hu , Haoyu Wu , Ramon Baldrich , Dimitris Samaras , Maria Vanrell

Neural Radiance Fields (NeRFs) increase reconstruction detail for novel view synthesis and scene reconstruction, with applications ranging from large static scenes to dynamic human motion. However, the increased resolution and model-free…

Computer Vision and Pattern Recognition · Computer Science 2022-06-27 Abiramy Kuganesan , Shih-yang Su , James J. Little , Helge Rhodin

We propose Multi-spectral Neural Radiance Fields(Spec-NeRF) for jointly reconstructing a multispectral radiance field and spectral sensitivity functions(SSFs) of the camera from a set of color images filtered by different filters. The…

Image and Video Processing · Electrical Eng. & Systems 2023-10-23 Jiabao Li , Yuqi Li , Ciliang Sun , Chong Wang , Jinhui Xiang

Rendering novel views from captured multi-view images has made considerable progress since the emergence of the neural radiance field. This paper aims to further advance the quality of view synthesis by proposing a novel approach dubbed the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Kang Han , Wei Xiang

This paper proposes a novel approach for rendering a pre-trained Neural Radiance Field (NeRF) in real-time on resource-constrained devices. We introduce Re-ReND, a method enabling Real-time Rendering of NeRFs across Devices. Re-ReND is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Sara Rojas , Jesus Zarzar , Juan Camilo Perez , Artsiom Sanakoyeu , Ali Thabet , Albert Pumarola , Bernard Ghanem

We propose X-NeRF, a novel method to learn a Cross-Spectral scene representation given images captured from cameras with different light spectrum sensitivity, based on the Neural Radiance Fields formulation. X-NeRF optimizes camera poses…

Computer Vision and Pattern Recognition · Computer Science 2022-09-02 Matteo Poggi , Pierluigi Zama Ramirez , Fabio Tosi , Samuele Salti , Stefano Mattoccia , Luigi Di Stefano

Neural Radiance Fields (NeRF) have shown promise in generating realistic novel views from sparse scene images. However, existing NeRF approaches often encounter challenges due to the lack of explicit 3D supervision and imprecise camera…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Kun Wang , Zhiqiang Yan , Huang Tian , Zhenyu Zhang , Xiang Li , Jun Li , Jian Yang

Existing neural radiance fields (NeRF)-based novel view synthesis methods for large-scale outdoor scenes are mainly built on a single altitude. Moreover, they often require a priori camera shooting height and scene scope, leading to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Jingfeng Guo , Xiaohan Zhang , Baozhu Zhao , Qi Liu

Neural radiance fields (NeRFs) have emerged as an effective method for novel-view synthesis and 3D scene reconstruction. However, conventional training methods require access to all training views during scene optimization. This assumption…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Ryan Po , Zhengyang Dong , Alexander W. Bergman , Gordon Wetzstein

Neural Radiance Fields (NeRFs) are emerging as a ubiquitous scene representation that allows for novel view synthesis. Increasingly, NeRFs will be shareable with other people. Before sharing a NeRF, though, it might be desirable to remove…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Silvan Weder , Guillermo Garcia-Hernando , Aron Monszpart , Marc Pollefeys , Gabriel Brostow , Michael Firman , Sara Vicente

Neural radiance fields (NeRF) appeared recently as a powerful tool to generate realistic views of objects and confined areas. Still, they face serious challenges with open scenes, where the camera has unrestricted movement and content can…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Ahmad AlMughrabi , Umair Haroon , Ricardo Marques , Petia Radeva

Neural Radiance Fields (NeRF) have received considerable attention recently, due to its impressive capability in photo-realistic 3D reconstruction and novel view synthesis, given a set of posed camera images. Earlier work usually assumes…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Peng Wang , Lingzhe Zhao , Ruijie Ma , Peidong Liu

Neural Radiance Fields (NeRF) has recently gained popularity for its impressive novel view synthesis ability. This paper studies the problem of hallucinated NeRF: i.e., recovering a realistic NeRF at a different time of day from a group of…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Xingyu Chen , Qi Zhang , Xiaoyu Li , Yue Chen , Ying Feng , Xuan Wang , Jue Wang

Decomposing a scene into its shape, reflectance and illumination is a fundamental problem in computer vision and graphics. Neural approaches such as NeRF have achieved remarkable success in view synthesis, but do not explicitly perform…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Mark Boss , Varun Jampani , Raphael Braun , Ce Liu , Jonathan T. Barron , Hendrik P. A. Lensch

Simultaneously achieving 3D reconstruction and new view synthesis for indoor environments has widespread applications but is technically very challenging. State-of-the-art methods based on implicit neural functions can achieve excellent 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Zhenyu Bao , Guibiao Liao , Zhongyuan Zhao , Kanglin Liu , Qing Li , Guoping Qiu

Reasoning the 3D structure of a non-rigid dynamic scene from a single moving camera is an under-constrained problem. Inspired by the remarkable progress of neural radiance fields (NeRFs) in photo-realistic novel view synthesis of static…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Sameera Ramasinghe , Violetta Shevchenko , Gil Avraham , Anton Van Den Hengel

Though neural radiance fields (NeRF) have demonstrated impressive view synthesis results on objects and small bounded regions of space, they struggle on "unbounded" scenes, where the camera may point in any direction and content may exist…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Jonathan T. Barron , Ben Mildenhall , Dor Verbin , Pratul P. Srinivasan , Peter Hedman