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3D surface reconstruction from images is essential for numerous applications. Recently, Neural Radiance Fields (NeRFs) have emerged as a promising framework for 3D modeling. However, NeRFs require accurate camera poses as input, and…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Yiyang Chen , Siyan Dong , Xulong Wang , Lulu Cai , Youyi Zheng , Yanchao Yang

Recently, Neural Radiance Fields (NeRF) is revolutionizing the task of novel view synthesis (NVS) for its superior performance. In this paper, we propose to synthesize dynamic scenes. Extending the methods for static scenes to dynamic…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Xiang Guo , Guanying Chen , Yuchao Dai , Xiaoqing Ye , Jiadai Sun , Xiao Tan , Errui Ding

Neural Radiance Field (NeRF) has revolutionized novel-view rendering tasks and achieved impressive results. However, the inefficient sampling and per-scene optimization hinder its wide applications. Though some generalizable NeRFs have been…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Yue Shi , Dingyi Rong , Chang Chen , Chaofan Ma , Bingbing Ni , Wenjun Zhang

Recent advances in Neural radiance fields (NeRF) have enabled high-fidelity scene reconstruction for novel view synthesis. However, NeRF requires hundreds of network evaluations per pixel to approximate a volume rendering integral, making…

计算机视觉与模式识别 · 计算机科学 2023-11-22 Yifan Wang , Yi Gong , Yuan Zeng

Neural Radiance Fields (NeRF) offer the potential to benefit 3D reconstruction tasks, including aerial photogrammetry. However, the scalability and accuracy of the inferred geometry are not well-documented for large-scale aerial…

计算机视觉与模式识别 · 计算机科学 2024-06-07 Ningli Xu , Rongjun Qin , Debao Huang , Fabio Remondino

Neural radiance fields (NeRFs) enable novel view synthesis with unprecedented visual quality. However, to render photorealistic images, NeRFs require hundreds of deep multilayer perceptron (MLP) evaluations - for each pixel. This is…

计算机视觉与模式识别 · 计算机科学 2023-04-21 Ziyu Wan , Christian Richardt , Aljaž Božič , Chao Li , Vijay Rengarajan , Seonghyeon Nam , Xiaoyu Xiang , Tuotuo Li , Bo Zhu , Rakesh Ranjan , Jing Liao

In NeRF, a critical problem is to effectively estimate the occupancy to guide empty-space skipping and point sampling. Grid-based methods work well for small-scale scenes. However, on large-scale scenes, they are limited by predefined…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Zhenxing Mi , Dan Xu

We propose a novel visual re-localization method based on direct matching between the implicit 3D descriptors and the 2D image with transformer. A conditional neural radiance field(NeRF) is chosen as the 3D scene representation in our…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Jianlin Liu , Qiang Nie , Yong Liu , Chengjie Wang

A variety of Neural Radiance Fields (NeRF) methods have recently achieved remarkable success in high render speed. However, current accelerating methods are specialized and incompatible with various implicit methods, preventing real-time…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Xinyu Gao , Ziyi Yang , Yunlu Zhao , Yuxiang Sun , Xiaogang Jin , Changqing Zou

Implicit neural representation has demonstrated promising results in 3D reconstruction on various scenes. However, existing approaches either struggle to model fast-moving objects or are incapable of handling large-scale camera ego-motions…

计算机视觉与模式识别 · 计算机科学 2026-01-19 Tianchen Deng , Yanbo Wang , Yejia Liu , Chenpeng Su , Jingchuan Wang , Danwei Wang , Shao-Yuan Lo , Weidong Chen

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

Recently, 3D Gaussian Splatting (3DGS) has emerged as a powerful alternative to NeRF-based approaches, enabling real-time, high-quality novel view synthesis through explicit, optimizable 3D Gaussians. However, 3DGS suffers from significant…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Zipeng Wang , Dan Xu

Feature point detection and description is the backbone for various computer vision applications, such as Structure-from-Motion, visual SLAM, and visual place recognition. While learning-based methods have surpassed traditional handcrafted…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Ali Youssef , Francisco Vasconcelos

We present a simple yet powerful neural network that implicitly represents and renders 3D objects and scenes only from 2D observations. The network models 3D geometries as a general radiance field, which takes a set of 2D images with camera…

计算机视觉与模式识别 · 计算机科学 2021-08-12 Alex Trevithick , Bo Yang

The quality of three-dimensional reconstruction is a key factor affecting the effectiveness of its application in areas such as virtual reality (VR) and augmented reality (AR) technologies. Neural Radiance Fields (NeRF) can generate…

计算机视觉与模式识别 · 计算机科学 2023-06-09 Qianqiu Tan , Tao Liu , Yinling Xie , Shuwan Yu , Baohua Zhang

Volumetric neural rendering methods like NeRF generate high-quality view synthesis results but are optimized per-scene leading to prohibitive reconstruction time. On the other hand, deep multi-view stereo methods can quickly reconstruct…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Qiangeng Xu , Zexiang Xu , Julien Philip , Sai Bi , Zhixin Shu , Kalyan Sunkavalli , Ulrich Neumann

In this paper, we propose SpectralNeRF, an end-to-end Neural Radiance Field (NeRF)-based architecture for high-quality physically based rendering from a novel spectral perspective. We modify the classical spectral rendering into two main…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Ru Li , Jia Liu , Guanghui Liu , Shengping Zhang , Bing Zeng , Shuaicheng Liu

The rendering procedure used by neural radiance fields (NeRF) samples a scene with a single ray per pixel and may therefore produce renderings that are excessively blurred or aliased when training or testing images observe scene content at…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Jonathan T. Barron , Ben Mildenhall , Matthew Tancik , Peter Hedman , Ricardo Martin-Brualla , Pratul P. Srinivasan

Texture synthesis is a fundamental problem in computer graphics that would benefit various applications. Existing methods are effective in handling 2D image textures. In contrast, many real-world textures contain meso-structure in the 3D…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Yi-Hua Huang , Yan-Pei Cao , Yu-Kun Lai , Ying Shan , Lin Gao

Neural radiance field (NeRF) has shown remarkable performance in generating photo-realistic novel views. Among recent NeRF related research, the approaches that involve the utilization of explicit structures like grids to manage features…

计算机视觉与模式识别 · 计算机科学 2023-09-07 Yongjae Lee , Li Yang , Deliang Fan