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Transmittance estimators such as Occupancy Grid (OG) can accelerate the training and rendering of Neural Radiance Field (NeRF) by predicting important samples that contributes much to the generated image. However, OG manages occupied…

计算机视觉与模式识别 · 计算机科学 2024-04-17 Yoshio Kato , Shuhei Tarashima

Neural Radiance Fields (NeRF) achieve photo-realistic view synthesis with densely captured input images. However, the geometry of NeRF is extremely under-constrained given sparse views, resulting in significant degradation of novel view…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Zheng Chen , Chen Wang , Yuan-Chen Guo , Song-Hai Zhang

Recent neural view synthesis methods have achieved impressive quality and realism, surpassing classical pipelines which rely on multi-view reconstruction. State-of-the-Art methods, such as NeRF, are designed to learn a single scene with a…

计算机视觉与模式识别 · 计算机科学 2021-04-15 Julian Chibane , Aayush Bansal , Verica Lazova , Gerard Pons-Moll

Neural radiance fields have made a remarkable breakthrough in the novel view synthesis task at the 3D static scene. However, for the 4D circumstance (e.g., dynamic scene), the performance of the existing method is still limited by the…

计算机视觉与模式识别 · 计算机科学 2024-08-14 Wanshui Gan , Hongbin Xu , Yi Huang , Shifeng Chen , Naoto Yokoya

Neural Radiance Fields (NeRF) have demonstrated superior novel view synthesis performance but are slow at rendering. To speed up the volume rendering process, many acceleration methods have been proposed at the cost of large memory…

计算机视觉与模式识别 · 计算机科学 2022-12-19 Sicheng Li , Hao Li , Yue Wang , Yiyi Liao , Lu Yu

Recently, Neural Radiance Fields (NeRF) have emerged as a potent method for synthesizing novel views from a dense set of images. Despite its impressive performance, NeRF is plagued by its necessity for numerous calibrated views and its…

计算机视觉与模式识别 · 计算机科学 2023-03-13 Jiayang Bai , Letian Huang , Wen Gong , Jie Guo , Yanwen Guo

Wireless channel modeling in complex environments is crucial for wireless communication system design and deployment. Traditional channel modeling approaches face challenges in balancing accuracy, efficiency, and scalability, while recent…

信号处理 · 电气工程与系统科学 2025-12-15 Zihang Zeng , Shu Sun , Meixia Tao , Yin Xu , Xianghao Yu

We present a method that achieves state-of-the-art results for synthesizing novel views of complex scenes by optimizing an underlying continuous volumetric scene function using a sparse set of input views. Our algorithm represents a scene…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Ben Mildenhall , Pratul P. Srinivasan , Matthew Tancik , Jonathan T. Barron , Ravi Ramamoorthi , Ren Ng

Neural radiance fields (NeRF) show great success in novel view synthesis. However, in real-world scenes, recovering high-quality details from the source images is still challenging for the existing NeRF-based approaches, due to the…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Kun Zhou , Wenbo Li , Yi Wang , Tao Hu , Nianjuan Jiang , Xiaoguang Han , Jiangbo Lu

We present ZeroRF, a novel per-scene optimization method addressing the challenge of sparse view 360{\deg} reconstruction in neural field representations. Current breakthroughs like Neural Radiance Fields (NeRF) have demonstrated…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Ruoxi Shi , Xinyue Wei , Cheng Wang , Hao Su

Recently, the Neural Radiance Field (NeRF) advancement has facilitated few-shot Novel View Synthesis (NVS), which is a significant challenge in 3D vision applications. Despite numerous attempts to reduce the dense input requirement in NeRF,…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Wangze Xu , Huachen Gao , Shihe Shen , Rui Peng , Jianbo Jiao , Ronggang Wang

Novel view synthesis via Neural Radiance Fields (NeRFs) or 3D Gaussian Splatting (3DGS) typically necessitates dense observations with hundreds of input images to circumvent artifacts. We introduce Deceptive-NeRF/3DGS to enhance sparse-view…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Xinhang Liu , Jiaben Chen , Shiu-hong Kao , Yu-Wing Tai , Chi-Keung Tang

We present a large-scale synthetic dataset for novel view synthesis consisting of ~300k images rendered from nearly 2000 complex scenes using high-quality ray tracing at high resolution (1600 x 1600 pixels). The dataset is orders of…

Neural Radiance Fields (NeRF) have led to breakthroughs in the novel view synthesis problem. Positional Encoding (P.E.) is a critical factor that brings the impressive performance of NeRF, where low-dimensional coordinates are mapped to…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Liangchen Song , Zhong Li , Xuan Gong , Lele Chen , Zhang Chen , Yi Xu , Junsong Yuan

We present PVSeRF, a learning framework that reconstructs neural radiance fields from single-view RGB images, for novel view synthesis. Previous solutions, such as pixelNeRF, rely only on pixel-aligned features and suffer from feature…

计算机视觉与模式识别 · 计算机科学 2022-02-11 Xianggang Yu , Jiapeng Tang , Yipeng Qin , Chenghong Li , Linchao Bao , Xiaoguang Han , Shuguang Cui

Neural Radiance Fields (NeRF) are an advanced technology that creates highly realistic images by learning about scenes through a neural network model. However, NeRF often encounters issues when there are not enough images to work with,…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Jiawei Guo , HungChyun Chou , Ning Ding

We introduce a novel monocular visual odometry (VO) system, NeRF-VO, that integrates learning-based sparse visual odometry for low-latency camera tracking and a neural radiance scene representation for fine-detailed dense reconstruction and…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Jens Naumann , Binbin Xu , Stefan Leutenegger , Xingxing Zuo

SAR images are highly sensitive to observation configurations, and they exhibit significant variations across different viewing angles, making it challenging to represent and learn their anisotropic features. As a result, deep learning…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Zhengxin Lei , Feng Xu , Jiangtao Wei , Feng Cai , Feng Wang , Ya-Qiu Jin

Neural Radiance Field (NeRF), as an implicit 3D scene representation, lacks inherent ability to accommodate changes made to the initial static scene. If objects are reconfigured, it is difficult to update the NeRF to reflect the new state…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Ziqi Lu , Jianbo Ye , Xiaohan Fei , Xiaolong Li , Jiawei Mo , Ashwin Swaminathan , Stefano Soatto

Neural Surface Reconstruction learns a Signed Distance Field~(SDF) to reconstruct the 3D model from multi-view images. Previous works adopt voxel-based explicit representation to improve efficiency. However, they ignored the gradient…

计算机视觉与模式识别 · 计算机科学 2024-06-12 Sidun Liu , Peng Qiao , Zongxin Ye , Wenyu Li , Yong Dou