Search Results for author: Linning Xu

Found 17 papers, 3 papers with code

Octree-GS: Towards Consistent Real-time Rendering with LOD-Structured 3D Gaussians

1 code implementation26 Mar 2024 Kerui Ren, Lihan Jiang, Tao Lu, Mulin Yu, Linning Xu, Zhangkai Ni, Bo Dai

The recent 3D Gaussian splatting (3D-GS) has shown remarkable rendering fidelity and efficiency compared to NeRF-based neural scene representations.

Neural Rendering

GSDF: 3DGS Meets SDF for Improved Rendering and Reconstruction

no code implementations25 Mar 2024 Mulin Yu, Tao Lu, Linning Xu, Lihan Jiang, Yuanbo Xiangli, Bo Dai

We show on diverse scenes that our design unlocks the potential for more accurate and detailed surface reconstructions, and at the meantime benefits 3DGS rendering with structures that are more aligned with the underlying geometry.

Neural Rendering

Scaffold-GS: Structured 3D Gaussians for View-Adaptive Rendering

1 code implementation30 Nov 2023 Tao Lu, Mulin Yu, Linning Xu, Yuanbo Xiangli, LiMin Wang, Dahua Lin, Bo Dai

Neural rendering methods have significantly advanced photo-realistic 3D scene rendering in various academic and industrial applications.

Neural Rendering

VR-NeRF: High-Fidelity Virtualized Walkable Spaces

no code implementations5 Nov 2023 Linning Xu, Vasu Agrawal, William Laney, Tony Garcia, Aayush Bansal, Changil Kim, Samuel Rota Bulò, Lorenzo Porzi, Peter Kontschieder, Aljaž Božič, Dahua Lin, Michael Zollhöfer, Christian Richardt

We present an end-to-end system for the high-fidelity capture, model reconstruction, and real-time rendering of walkable spaces in virtual reality using neural radiance fields.

2k

MatrixCity: A Large-scale City Dataset for City-scale Neural Rendering and Beyond

no code implementations ICCV 2023 Yixuan Li, Lihan Jiang, Linning Xu, Yuanbo Xiangli, Zhenzhi Wang, Dahua Lin, Bo Dai

While most of recent neural rendering works focus on objects and small-scale scenes, developing neural rendering methods for city-scale scenes is of great potential in many real-world applications.

Neural Rendering

Grid-guided Neural Radiance Fields for Large Urban Scenes

no code implementations CVPR 2023 Linning Xu, Yuanbo Xiangli, Sida Peng, Xingang Pan, Nanxuan Zhao, Christian Theobalt, Bo Dai, Dahua Lin

An alternative solution is to use a feature grid representation, which is computationally efficient and can naturally scale to a large scene with increased grid resolutions.

AssetField: Assets Mining and Reconfiguration in Ground Feature Plane Representation

no code implementations ICCV 2023 Yuanbo Xiangli, Linning Xu, Xingang Pan, Nanxuan Zhao, Bo Dai, Dahua Lin

Traditional modeling pipelines keep an asset library storing unique object templates, which is both versatile and memory efficient in practice.

Novel View Synthesis Object

Dynamic Storyboard Generation in an Engine-based Virtual Environment for Video Production

no code implementations30 Jan 2023 Anyi Rao, Xuekun Jiang, Yuwei Guo, Linning Xu, Lei Yang, Libiao Jin, Dahua Lin, Bo Dai

Amateurs working on mini-films and short-form videos usually spend lots of time and effort on the multi-round complicated process of setting and adjusting scenes, plots, and cameras to deliver satisfying video shots.

OmniCity: Omnipotent City Understanding with Multi-level and Multi-view Images

no code implementations CVPR 2023 Weijia Li, Yawen Lai, Linning Xu, Yuanbo Xiangli, Jinhua Yu, Conghui He, Gui-Song Xia, Dahua Lin

More precisely, the OmniCity contains multi-view satellite images as well as street-level panorama and mono-view images, constituting over 100K pixel-wise annotated images that are well-aligned and collected from 25K geo-locations in New York City.

Instance Segmentation Segmentation +1

BungeeNeRF: Progressive Neural Radiance Field for Extreme Multi-scale Scene Rendering

no code implementations10 Dec 2021 Yuanbo Xiangli, Linning Xu, Xingang Pan, Nanxuan Zhao, Anyi Rao, Christian Theobalt, Bo Dai, Dahua Lin

The wide span of viewing positions within these scenes yields multi-scale renderings with very different levels of detail, which poses great challenges to neural radiance field and biases it towards compromised results.

Demystify Painting with RL

no code implementations CUHK Course IERG5350 2020 Linning Xu, Yunxiang Zhang

Given an image of an arbitrary scene, experienced artists are skillful at accurately perceiving the visual contents within the scene, such as objects, lighting, and tint, and presenting them in different painting styles.

Decision Making Reinforcement Learning (RL)

Online Multi-modal Person Search in Videos

no code implementations ECCV 2020 Jiangyue Xia, Anyi Rao, Qingqiu Huang, Linning Xu, Jiangtao Wen, Dahua Lin

The task of searching certain people in videos has seen increasing potential in real-world applications, such as video organization and editing.

Person Recognition Person Search

Learn to Propagate Reliably on Noisy Affinity Graphs

no code implementations ECCV 2020 Lei Yang, Qingqiu Huang, Huaiyi Huang, Linning Xu, Dahua Lin

Recent works have shown that exploiting unlabeled data through label propagation can substantially reduce the labeling cost, which has been a critical issue in developing visual recognition models.

Open-Ended Question Answering

A Local-to-Global Approach to Multi-modal Movie Scene Segmentation

4 code implementations CVPR 2020 Anyi Rao, Linning Xu, Yu Xiong, Guodong Xu, Qingqiu Huang, Bolei Zhou, Dahua Lin

Scene, as the crucial unit of storytelling in movies, contains complex activities of actors and their interactions in a physical environment.

Action Recognition Scene Segmentation +1

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