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In this paper, we study the problem of continuous 3D shape representations. The majority of existing successful methods are coordinate-based implicit neural representations. However, they are inefficient to render novel views or recover…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Zhuoman Liu , Bo Yang , Yan Luximon , Ajay Kumar , Jinxi Li

Implicit neural field generating signed distance field representations (SDFs) of 3D shapes have shown remarkable progress in 3D shape reconstruction and generation. We introduce a new paradigm for neural field representations of 3D scenes;…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Angela Dai , Matthias Nießner

3D rendering of dynamic face captures is a challenging problem, and it demands improvements on several fronts$\unicode{x2014}$photorealism, efficiency, compatibility, and configurability. We present a novel representation that enables…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Safa C. Medin , Gengyan Li , Ruofei Du , Stephan Garbin , Philip Davidson , Gregory W. Wornell , Thabo Beeler , Abhimitra Meka

Diffeomorphic image registration, offering smooth transformation and topology preservation, is required in many medical image analysis tasks.Traditional methods impose certain modeling constraints on the space of admissible transformations…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Kun Han , Shanlin sun , Xiangyi Yan , Chenyu You , Hao Tang , Junayed Naushad , Haoyu Ma , Deying Kong , Xiaohui Xie

The recent proliferation of 3D content that can be consumed on hand-held devices necessitates efficient tools for transmitting large geometric data, e.g., 3D meshes, over the Internet. Detailed high-resolution assets can pose a challenge to…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Yun-Chun Chen , Vladimir G. Kim , Noam Aigerman , Alec Jacobson

With the introduction of Neural Radiance Fields (NeRFs), novel view synthesis has recently made a big leap forward. At the core, NeRF proposes that each 3D point can emit radiance, allowing to conduct view synthesis using differentiable…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Marie-Julie Rakotosaona , Fabian Manhardt , Diego Martin Arroyo , Michael Niemeyer , Abhijit Kundu , Federico Tombari

Recent advances in Neural Radiance Fields (NeRF) boast impressive performances for generative tasks such as novel view synthesis and 3D reconstruction. Methods based on neural radiance fields are able to represent the 3D world implicitly by…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Jesus Zarzar , Sara Rojas , Silvio Giancola , Bernard Ghanem

Neural fields, which represent signals as a function parameterized by a neural network, are a promising alternative to traditional discrete vector or grid-based representations. Compared to discrete representations, neural representations…

机器学习 · 计算机科学 2023-09-14 Jeffrey Gu , Kuan-Chieh Wang , Serena Yeung

This work is concerned with a representation of shapes that disentangles fine, local and possibly repeating geometry, from global, coarse structures. Achieving such disentanglement leads to two unrelated advantages: i) a significant…

计算机视觉与模式识别 · 计算机科学 2022-04-06 Luca Morreale , Noam Aigerman , Paul Guerrero , Vladimir G. Kim , Niloy J. Mitra

Existing depth estimation methods are fundamentally limited to predicting depth on discrete image grids. Such representations restrict their scalability to arbitrary output resolutions and hinder the geometric detail recovery. This paper…

计算机视觉与模式识别 · 计算机科学 2026-01-07 Hao Yu , Haotong Lin , Jiawei Wang , Jiaxin Li , Yida Wang , Xueyang Zhang , Yue Wang , Xiaowei Zhou , Ruizhen Hu , Sida Peng

Neural Radiance Fields (NeRF) have received considerable attention recently, due to its impressive capability in photo-realistic 3D reconstruction and novel view synthesis, given a set of posed camera images. Earlier work usually assumes…

计算机视觉与模式识别 · 计算机科学 2023-06-27 Peng Wang , Lingzhe Zhao , Ruijie Ma , Peidong Liu

Neural Radiation Field (NeRF) technology can learn a 3D implicit model of a scene from 2D images and synthesize realistic novel view images. This technology has received widespread attention from the industry and has good application…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Shun Fang , Ming Cui , Xing Feng , Yanna Lv

Neural radiance fields (NeRFs) produce state-of-the-art view synthesis results. However, they are slow to render, requiring hundreds of network evaluations per pixel to approximate a volume rendering integral. Baking NeRFs into explicit…

计算机视觉与模式识别 · 计算机科学 2022-05-11 Benjamin Attal , Jia-Bin Huang , Michael Zollhoefer , Johannes Kopf , Changil Kim

Neural Radiance Fields (NeRFs) are a very recent and very popular approach for the problems of novel view synthesis and 3D reconstruction. A popular scene representation used by NeRFs is to combine a uniform, voxel-based subdivision of the…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Jonas Kulhanek , Torsten Sattler

Recent advances in image-based 3D human shape estimation have been driven by the significant improvement in representation power afforded by deep neural networks. Although current approaches have demonstrated the potential in real world…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Shunsuke Saito , Tomas Simon , Jason Saragih , Hanbyul Joo

Implicit neural representation is a recent approach to learn shape collections as zero level-sets of neural networks, where each shape is represented by a latent code. So far, the focus has been shape reconstruction, while shape…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Matan Atzmon , David Novotny , Andrea Vedaldi , Yaron Lipman

Restoring a sharp light field image from its blurry input has become essential due to the increasing popularity of parallax-based image processing. State-of-the-art blind light field deblurring methods suffer from several issues such as…

计算机视觉与模式识别 · 计算机科学 2019-12-06 Jonathan Samuel Lumentut , Tae Hyun Kim , Ravi Ramamoorthi , In Kyu Park

Accurate reconstruction of plant phenotypes plays a key role in optimising sustainable farming practices in the field of Precision Agriculture (PA). Currently, optical sensor-based approaches dominate the field, but the need for…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Kewei Hu , Ying Wei , Yaoqiang Pan , Hanwen Kang , Chao Chen

Precise representations of 3D faces are beneficial to various computer vision and graphics applications. Due to the data discretization and model linearity, however, it remains challenging to capture accurate identity and expression clues…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Mingwu Zheng , Hongyu Yang , Di Huang , Liming Chen

We present Mesh2NeRF, an approach to derive ground-truth radiance fields from textured meshes for 3D generation tasks. Many 3D generative approaches represent 3D scenes as radiance fields for training. Their ground-truth radiance fields are…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Yujin Chen , Yinyu Nie , Benjamin Ummenhofer , Reiner Birkl , Michael Paulitsch , Matthias Müller , Matthias Nießner