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Hyperspectral Imagery (HSI) has been used in many applications to non-destructively determine the material and/or chemical compositions of samples. There is growing interest in creating 3D hyperspectral reconstructions, which could provide…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Gerry Chen , Sunil Kumar Narayanan , Thomas Gautier Ottou , Benjamin Missaoui , Harsh Muriki , Cédric Pradalier , Yongsheng Chen

While Neural Radiance Fields (NeRFs) had achieved unprecedented novel view synthesis results, they have been struggling in dealing with large-scale cluttered scenes with sparse input views and highly view-dependent appearances.…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Xinhang Liu , Yu-Wing Tai , Chi-Keung Tang

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…

计算机视觉与模式识别 · 计算机科学 2024-07-22 Zhenyu Bao , Guibiao Liao , Zhongyuan Zhao , Kanglin Liu , Qing Li , Guoping Qiu

Neural Radiance Field (NeRF) has demonstrated excellent quality in novel view synthesis, thanks to its ability to model 3D object geometries in a concise formulation. However, current approaches to NeRF-based models rely on clean images…

计算机视觉与模式识别 · 计算机科学 2023-01-11 Chen Wang , Angtian Wang , Junbo Li , Alan Yuille , Cihang Xie

The ability of neural radiance fields or NeRFs to conduct accurate 3D modelling has motivated application of the technique to scene representation. Previous approaches have mainly followed a centralised learning paradigm, which assumes that…

计算机视觉与模式识别 · 计算机科学 2023-05-03 Lachlan Holden , Feras Dayoub , David Harvey , Tat-Jun Chin

Neural Radiance Fields (NeRFs) are trained to minimize the rendering loss of predicted viewpoints. However, the photometric loss often does not provide enough information to disambiguate between different possible geometries yielding the…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Anita Rau , Josiah Aklilu , F. Christopher Holsinger , Serena Yeung-Levy

While dynamic Neural Radiance Fields (NeRF) have shown success in high-fidelity 3D modeling of talking portraits, the slow training and inference speed severely obstruct their potential usage. In this paper, we propose an efficient…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Jiaxiang Tang , Kaisiyuan Wang , Hang Zhou , Xiaokang Chen , Dongliang He , Tianshu Hu , Jingtuo Liu , Gang Zeng , Jingdong Wang

We address efficient and structure-aware 3D scene representation from images. Nerflets are our key contribution -- a set of local neural radiance fields that together represent a scene. Each nerflet maintains its own spatial position,…

计算机视觉与模式识别 · 计算机科学 2023-03-13 Xiaoshuai Zhang , Abhijit Kundu , Thomas Funkhouser , Leonidas Guibas , Hao Su , Kyle Genova

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…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Huangying Zhan , Jiyang Zheng , Yi Xu , Ian Reid , Hamid Rezatofighi

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…

计算机视觉与模式识别 · 计算机科学 2024-10-02 Youngho Yoon , Hyun-Kurl Jang , Kuk-Jin Yoon

We present NeRFVS, a novel neural radiance fields (NeRF) based method to enable free navigation in a room. NeRF achieves impressive performance in rendering images for novel views similar to the input views while suffering for novel views…

计算机视觉与模式识别 · 计算机科学 2023-05-24 Chen Yang , Peihao Li , Zanwei Zhou , Shanxin Yuan , Bingbing Liu , Xiaokang Yang , Weichao Qiu , Wei Shen

Neural Radiance Fields (NeRFs) have emerged as powerful tools for capturing detailed 3D scenes through continuous volumetric representations. Recent NeRFs utilize feature grids to improve rendering quality and speed; however, these…

计算机视觉与模式识别 · 计算机科学 2024-06-14 Tuan Pham , Stephan Mandt

In this paper, we present a novel double diffusion based neural radiance field, dubbed DD-NeRF, to reconstruct human body geometry and render the human body appearance in novel views from a sparse set of images. We first propose a double…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Guangming Yao , Hongzhi Wu , Yi Yuan , Lincheng Li , Kun Zhou , Xin Yu

Neural Radiance Fields (NeRFs) have revolutionized the field of novel view synthesis, demonstrating remarkable performance. However, the modeling and rendering of reflective objects remain challenging problems. Recent methods have shown…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Georgios Kouros , Minye Wu , Shubham Shrivastava , Sushruth Nagesh , Punarjay Chakravarty , Tinne Tuytelaars

Adopting Neural Radiance Fields (NeRF) to long-duration dynamic sequences has been challenging. Existing methods struggle to balance between quality and storage size and encounter difficulties with complex scene changes such as topological…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Minye Wu , Tinne Tuytelaars

3D neural implicit representations play a significant component in many robotic applications. However, reconstructing neural radiance fields (NeRF) from realistic event data remains a challenge due to the sparsities and the lack of…

机器人学 · 计算机科学 2024-01-31 Jiaxu Wang , Junhao He , Ziyi Zhang , Renjing Xu

Neural Radiance Fields (NeRF) have emerged as a powerful approach for photorealistic 3D reconstruction from multi-view images. However, deploying NeRF for satellite imagery remains challenging. Each scene requires individual training, and…

Neural Radiance Fields employ simple volume rendering as a way to overcome the challenges of differentiating through ray-triangle intersections by leveraging a probabilistic notion of visibility. This is achieved by assuming the scene is…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Andrea Tagliasacchi , Ben Mildenhall

Neural radiance fields (NeRF) excel at synthesizing new views given multi-view, calibrated images of a static scene. When scenes include distractors, which are not persistent during image capture (moving objects, lighting variations,…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Sara Sabour , Suhani Vora , Daniel Duckworth , Ivan Krasin , David J. Fleet , Andrea Tagliasacchi

Recently, Neural Radiance Fields (NeRF) has exhibited significant success in novel view synthesis, surface reconstruction, etc. However, since no physical reflection is considered in its rendering pipeline, NeRF mistakes the reflection in…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Junyi Zeng , Chong Bao , Rui Chen , Zilong Dong , Guofeng Zhang , Hujun Bao , Zhaopeng Cui