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We propose to tackle the multiview photometric stereo problem using an extension of Neural Radiance Fields (NeRFs), conditioned on light source direction. The geometric part of our neural representation predicts surface normal direction,…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Meghna Asthana , William A. P. Smith , Patrik Huber

This paper aims at recovering the shape of a scene with unknown, non-Lambertian, and possibly spatially-varying surface materials. When the shape of the object is highly complex and that shadows cast on the surface, the task becomes very…

计算机视觉与模式识别 · 计算机科学 2022-03-25 Junxuan Li , Hongdong Li

Neural Radiance Fields (NeRF) is a popular view synthesis technique that represents a scene as a continuous volumetric function, parameterized by multilayer perceptrons that provide the volume density and view-dependent emitted radiance at…

计算机视觉与模式识别 · 计算机科学 2021-12-08 Dor Verbin , Peter Hedman , Ben Mildenhall , Todd Zickler , Jonathan T. Barron , Pratul P. Srinivasan

We present a novel single-stage framework, Neural Photon Field (NePF), to address the ill-posed inverse rendering from multi-view images. Contrary to previous methods that recover the geometry, material, and illumination in multiple stages…

计算机视觉与模式识别 · 计算机科学 2023-11-21 Tuen-Yue Tsui , Qin Zou

Recent history has seen a tremendous growth of work exploring implicit representations of geometry and radiance, popularized through Neural Radiance Fields (NeRF). Such works are fundamentally based on a (implicit) volumetric representation…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Jason Y. Zhang , Gengshan Yang , Shubham Tulsiani , Deva Ramanan

Reconstruction and intrinsic decomposition of scenes from captured imagery would enable many applications such as relighting and virtual object insertion. Recent NeRF based methods achieve impressive fidelity of 3D reconstruction, but bake…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Zian Wang , Tianchang Shen , Jun Gao , Shengyu Huang , Jacob Munkberg , Jon Hasselgren , Zan Gojcic , Wenzheng Chen , Sanja Fidler

This paper presents a method, namely NeuS-PIR, for recovering relightable neural surfaces using pre-integrated rendering from multi-view images or video. Unlike methods based on NeRF and discrete meshes, our method utilizes implicit neural…

计算机视觉与模式识别 · 计算机科学 2024-03-27 Shi Mao , Chenming Wu , Zhelun Shen , Yifan Wang , Dayan Wu , Liangjun Zhang

This paper presents a unified surface reconstruction and rendering framework for LiDAR-visual systems, integrating Neural Radiance Fields (NeRF) and Neural Distance Fields (NDF) to recover both appearance and structural information from…

机器人学 · 计算机科学 2024-09-10 Jianheng Liu , Chunran Zheng , Yunfei Wan , Bowen Wang , Yixi Cai , Fu Zhang

In this paper, we propose a novel end-to-end relightable neural inverse rendering system that achieves high-quality reconstruction of geometry and material properties, thus enabling high-quality relighting. The cornerstone of our method is…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Deheng Zhang , Jingyu Wang , Shaofei Wang , Marko Mihajlovic , Sergey Prokudin , Hendrik P. A. Lensch , Siyu Tang

Neural radiance field (NeRF) enables the synthesis of cutting-edge realistic novel view images of a 3D scene. It includes density and color fields to model the shape and radiance of a scene, respectively. Supervised by the photometric loss…

计算机视觉与模式识别 · 计算机科学 2023-12-21 Qihang Fang , Yafei Song , Keqiang Li , Liefeng Bo

Neural implicit representation of visual scenes has attracted a lot of attention in recent research of computer vision and graphics. Most prior methods focus on how to reconstruct 3D scene representation from a set of images. In this work,…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Wenpu Li , Pian Wan , Peng Wang , Jinghang Li , Yi Zhou , Peidong Liu

We present Neural Microfacet Fields, a method for recovering materials, geometry, and environment illumination from images of a scene. Our method uses a microfacet reflectance model within a volumetric setting by treating each sample along…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Alexander Mai , Dor Verbin , Falko Kuester , Sara Fridovich-Keil

Implicit representations like Neural Radiance Fields (NeRF) showed impressive results for photorealistic rendering of complex scenes with fine details. However, ideal or near-perfectly specular reflecting objects such as mirrors, which are…

计算机视觉与模式识别 · 计算机科学 2023-10-17 Leif Van Holland , Ruben Bliersbach , Jan U. Müller , Patrick Stotko , Reinhard Klein

Neural Radiance Fields (NeRF) achieve impressive view synthesis results for a variety of capture settings, including 360 capture of bounded scenes and forward-facing capture of bounded and unbounded scenes. NeRF fits multi-layer perceptrons…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Kai Zhang , Gernot Riegler , Noah Snavely , Vladlen Koltun

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,…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Jiading Fang , Shengjie Lin , Igor Vasiljevic , Vitor Guizilini , Rares Ambrus , Adrien Gaidon , Gregory Shakhnarovich , Matthew R. Walter

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

We propose IBL-NeRF, which decomposes the neural radiance fields (NeRF) of large-scale indoor scenes into intrinsic components. Recent approaches further decompose the baked radiance of the implicit volume into intrinsic components such…

计算机视觉与模式识别 · 计算机科学 2023-09-13 Changwoon Choi , Juhyeon Kim , Young Min Kim

Neural Radiance Field (NeRF) has gained considerable attention recently for 3D scene reconstruction and novel view synthesis due to its remarkable synthesis quality. However, image blurriness caused by defocus or motion, which often occurs…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Li Ma , Xiaoyu Li , Jing Liao , Qi Zhang , Xuan Wang , Jue Wang , Pedro V. Sander

Implicit surfaces via neural radiance fields (NeRF) have shown surprising accuracy in surface reconstruction. Despite their success in reconstructing richly textured surfaces, existing methods struggle with planar regions with weak…

计算机视觉与模式识别 · 计算机科学 2024-08-19 Albert Gassol Puigjaner , Edoardo Mello Rella , Erik Sandström , Ajad Chhatkuli , Luc Van Gool

Accurate material modeling is crucial for achieving photorealistic rendering, bridging the gap between computer-generated imagery and real-world photographs. While traditional approaches rely on tabulated BRDF data, recent work has shifted…

图形学 · 计算机科学 2025-08-18 Chenliang Zhou , Zheyuan Hu , Cengiz Oztireli