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Neural Radiance Fields (NeRFs) learn to represent a 3D scene from just a set of registered images. Increasing sizes of a scene demands more complex functions, typically represented by neural networks, to capture all details. Training and…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Tim Elsner , Victor Czech , Julia Berger , Zain Selman , Isaak Lim , Leif Kobbelt

We present a method for composing photorealistic scenes from captured images of objects. Our work builds upon neural radiance fields (NeRFs), which implicitly model the volumetric density and directionally-emitted radiance of a scene. While…

计算机视觉与模式识别 · 计算机科学 2020-12-16 Michelle Guo , Alireza Fathi , Jiajun Wu , Thomas Funkhouser

This paper presents the first significant object detection framework, NeRF-RPN, which directly operates on NeRF. Given a pre-trained NeRF model, NeRF-RPN aims to detect all bounding boxes of objects in a scene. By exploiting a novel voxel…

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

We present EvDNeRF, a pipeline for generating event data and training an event-based dynamic NeRF, for the purpose of faithfully reconstructing eventstreams on scenes with rigid and non-rigid deformations that may be too fast to capture…

Recent advances in neural rendering have shown that, albeit slow, implicit compact models can learn a scene's geometries and view-dependent appearances from multiple views. To maintain such a small memory footprint but achieve faster…

计算机视觉与模式识别 · 计算机科学 2023-12-14 Juan Luis Gonzalez Bello , Minh-Quan Viet Bui , Munchurl Kim

We use neural radiance fields (NeRFs) to build interactive 3D environments from large-scale visual captures spanning buildings or even multiple city blocks collected primarily from drones. In contrast to single object scenes (on which NeRFs…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Haithem Turki , Deva Ramanan , Mahadev Satyanarayanan

Neural radiance fields (NeRF) achieve highly photo-realistic novel-view synthesis, but it's a challenging problem to edit the scenes modeled by NeRF-based methods, especially for dynamic scenes. We propose editable neural radiance fields…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Chengwei Zheng , Wenbin Lin , Feng Xu

While Neural Radiance Fields (NeRFs) have demonstrated exceptional quality, their protracted training duration remains a limitation. Generalizable and MVS-based NeRFs, although capable of mitigating training time, often incur tradeoffs in…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Chih-Hai Su , Chih-Yao Hu , Shr-Ruei Tsai , Jie-Ying Lee , Chin-Yang Lin , Yu-Lun Liu

The recent research explosion around implicit neural representations, such as NeRF, shows that there is immense potential for implicitly storing high-quality scene and lighting information in compact neural networks. However, one major…

We present a novel method for performing flexible, 3D-aware image content manipulation while enabling high-quality novel view synthesis. While NeRF-based approaches are effective for novel view synthesis, such models memorize the radiance…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Verica Lazova , Vladimir Guzov , Kyle Olszewski , Sergey Tulyakov , Gerard Pons-Moll

Neural radiance field (NeRF) is an emerging view synthesis method that samples points in a three-dimensional (3D) space and estimates their existence and color probabilities. The disadvantage of NeRF is that it requires a long training time…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Hye Bin Yoo , Hyun Min Han , Sung Soo Hwang , Il Yong Chun

We present a neural rendering framework that maps a voxelized scene into a high quality image. Highly-textured objects and scene element interactions are realistically rendered by our method, despite having a rough representation as an…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Konstantinos Rematas , Vittorio Ferrari

Neural radiance field (NeRF) attracts attention as a promising approach to reconstructing the 3D scene. As NeRF emerges, subsequent studies have been conducted to model dynamic scenes, which include motions or topological changes. However,…

计算机视觉与模式识别 · 计算机科学 2022-12-07 Hankyu Jang , Daeyoung Kim

Existing methods for the 4D reconstruction of general, non-rigidly deforming objects focus on novel-view synthesis and neglect correspondences. However, time consistency enables advanced downstream tasks like 3D editing, motion analysis, or…

计算机视觉与模式识别 · 计算机科学 2023-08-17 Edith Tretschk , Vladislav Golyanik , Michael Zollhoefer , Aljaz Bozic , Christoph Lassner , Christian Theobalt

Since the introduction of NeRFs, considerable attention has been focused on improving their training and inference times, leading to the development of Fast-NeRFs models. Despite demonstrating impressive rendering speed and quality, the…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Francesco Di Sario , Riccardo Renzulli , Enzo Tartaglione , Marco Grangetto

Estimating neural radiance fields (NeRFs) from "ideal" images has been extensively studied in the computer vision community. Most approaches assume optimal illumination and slow camera motion. These assumptions are often violated in robotic…

计算机视觉与模式识别 · 计算机科学 2023-01-25 Simon Klenk , Lukas Koestler , Davide Scaramuzza , Daniel Cremers

Neural surface reconstruction methods typically treat camera poses as fixed values, assuming perfect accuracy from Structure-from-Motion (SfM) systems. This assumption breaks down with imperfect pose estimates, leading to distorted or…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Shravan Venkatraman , Rakesh Raj Madavan , Pavan Kumar Sathya Venkatesh

Neural Radiance Fields (NeRFs) have emerged as a popular approach for novel view synthesis. While NeRFs are quickly being adapted for a wider set of applications, intuitively editing NeRF scenes is still an open challenge. One important…

Neural Radiance Fields (NeRF) have shown remarkable performance in learning 3D scenes. However, NeRF exhibits vulnerability when confronted with distractors in the training images -- unexpected objects are present only within specific…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Yeonsung Jung , Heecheol Yun , Joonhyung Park , Jin-Hwa Kim , Eunho Yang

In this paper the application of uncertainty modeling to convolutional neural networks is evaluated. A novel method for adjusting the network's predictions based on uncertainty information is introduced. This allows the network to be either…

计算机视觉与模式识别 · 计算机科学 2016-12-23 Rene Grzeszick , Sebastian Sudholt , Gernot A. Fink