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In this work, we propose the use of Neural Radiance Fields (NeRF) as a scene representation for visual localization. Recently, NeRF has been employed to enhance pose regression and scene coordinate regression models by augmenting the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Qunjie Zhou , Maxim Maximov , Or Litany , Laura Leal-Taixé

Fully unsupervised 3D representation learning has gained attention owing to its advantages in data collection. A successful approach involves a viewpoint-aware approach that learns an image distribution based on generative models (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Takuhiro Kaneko

We propose a Transformer-based NeRF (TransNeRF) to learn a generic neural radiance field conditioned on observed-view images for the novel view synthesis task. By contrast, existing MLP-based NeRFs are not able to directly receive observed…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Dan Wang , Xinrui Cui , Septimiu Salcudean , Z. Jane Wang

Recently neural scene representations have provided very impressive results for representing 3D scenes visually, however, their study and progress have mainly been limited to visualization of virtual models in computer graphics or scene…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Yassine Ahmine , Arnab Dey , Andrew I. Comport

Neural radiance fields (NeRF) have demonstrated the potential of coordinate-based neural representation (neural fields or implicit neural representation) in neural rendering. However, using a multi-layer perceptron (MLP) to represent a 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Daniel Rho , Byeonghyeon Lee , Seungtae Nam , Joo Chan Lee , Jong Hwan Ko , Eunbyung Park

Neural implicit surface representations have emerged as a promising paradigm to capture 3D shapes in a continuous and resolution-independent manner. However, adapting them to articulated shapes is non-trivial. Existing approaches learn a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Xu Chen , Yufeng Zheng , Michael J. Black , Otmar Hilliges , Andreas Geiger

Recent advances in Neural Radiance Fields (NeRF) have demonstrated significant potential for representing 3D scene appearances as implicit neural networks, enabling the synthesis of high-fidelity novel views. However, the lengthy training…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Tong Wang , Shuichi Kurabayashi

Articulated objects and their representations pose a difficult problem for robots. These objects require not only representations of geometry and texture, but also of the various connections and joint parameters that make up each…

Robotics · Computer Science 2024-09-17 Stanley Lewis , Tom Gao , Odest Chadwicke Jenkins

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

Neural Radiance Fields (NeRF) use multi-view images for 3D scene representation, demonstrating remarkable performance. As one of the primary sources of multi-view images, multi-camera systems encounter challenges such as varying intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Yu Gao , Lutong Su , Hao Liang , Yufeng Yue , Yi Yang , Mengyin Fu

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

Traditional 3D face models are based on mesh representations with texture. One of the most important models is FLAME (Faces Learned with an Articulated Model and Expressions), which produces meshes of human faces that are fully…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Wojciech Zając , Joanna Waczyńska , Piotr Borycki , Jacek Tabor , Maciej Zięba , Przemysław Spurek

Neural radiance fields (NeRFs) are promising 3D representations for scenes, objects, and humans. However, most existing methods require multi-view inputs and per-scene training, which limits their real-life applications. Moreover, current…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Xuan Huang , Hanhui Li , Zejun Yang , Zhisheng Wang , Xiaodan Liang

Neural Radiance Field (NeRF) is a representation for 3D reconstruction from multi-view images. Despite some recent work showing preliminary success in editing a reconstructed NeRF with diffusion prior, they remain struggling to synthesize…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Chieh Hubert Lin , Changil Kim , Jia-Bin Huang , Qinbo Li , Chih-Yao Ma , Johannes Kopf , Ming-Hsuan Yang , Hung-Yu Tseng

Novel view synthesis (NVS) aims to generate images at arbitrary viewpoints using multi-view images, and recent insights from neural radiance fields (NeRF) have contributed to remarkable improvements. Recently, studies on generalizable NeRF…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Youngho Yoon , Hyun-Kurl Jang , Kuk-Jin Yoon

Novel view synthesis (NVS) of multi-human scenes imposes challenges due to the complex inter-human occlusions. Layered representations handle the complexities by dividing the scene into multi-layered radiance fields, however, they are…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Youssef Abdelkareem , Shady Shehata , Fakhri Karray

Neural rendering has received tremendous attention since the advent of Neural Radiance Fields (NeRF), and has pushed the state-of-the-art on novel-view synthesis considerably. The recent focus has been on models that overfit to a single…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Mohammed Suhail , Carlos Esteves , Leonid Sigal , Ameesh Makadia

A high-quality 3D reconstruction of a scene from a collection of 2D images can be achieved through offline/online mapping methods. In this paper, we explore active mapping from the perspective of implicit representations, which have…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Huangying Zhan , Jiyang Zheng , Yi Xu , Ian Reid , Hamid Rezatofighi

A practical benefit of implicit visual representations like Neural Radiance Fields (NeRFs) is their memory efficiency: large scenes can be efficiently stored and shared as small neural nets instead of collections of images. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Jiading Fang , Shengjie Lin , Igor Vasiljevic , Vitor Guizilini , Rares Ambrus , Adrien Gaidon , Gregory Shakhnarovich , Matthew R. Walter

Effective environment perception is crucial for enabling downstream robotic applications. Individual robotic agents often face occlusion and limited visibility issues, whereas multi-agent systems can offer a more comprehensive mapping of…

Robotics · Computer Science 2024-10-01 Hongrui Zhao , Boris Ivanovic , Negar Mehr