PolyGNN: Polyhedron-based graph neural network for 3D building reconstruction from point clouds

Zhaiyu Chen, Yilei Shi, Liangliang Nan, Zhitong Xiong, Xiao Xiang Zhu
ISPRS Journal of Photogrammetry and Remote Sensing, v218, 693-706, 2024

[Paper (6M)] [Code] [URL]

SimLOG: Simultaneous Local-Global Feature Learning for 3D Object Detection in Indoor Point Clouds

Mingqiang Wei, Baian Chen, Liangliang Nan, Haoran Xie, Lipeng Gu, Dening Lu, Fu Lee Wang, Qing Li
IEEE Transactions on Intelligent Transportation Systems, 2024

[Paper (5M)] [Code] [URL]

A Benchmark Approach and Dataset for Large-scale Lane Mapping from MLS Point Clouds

Xiaoxin Mi, Zhen Dong, Zhipeng Cao, Bisheng Yang, Zhen Cao, Chao Zheng, Jantien Stoter, Liangliang Nan
International Journal of Applied Earth Observation and Geoinformation, v133, 2024

[Paper (1M)] [Code] [Dataset] [URL]

PointeNet: A lightweight framework for effective and efficient point cloud analysis

Lipeng Gu, Xuefeng Yan, Liangliang Nan, Dingkun Zhu, Honghua Chen, Weiming Wang, Mingqiang Wei
Computer Aided Geometric Design, 102311, 2024

[Paper (3M)] [Code] [URL]

Fast Building Instance Proxy Reconstruction for Large Urban Scenes

Jianwei Guo, Haobo Qin, Yinchang Zhou, Xin Chen, Liangliang Nan, Hui Huang
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2024

[Paper (15M)]

On the Estimation of Image-matching Uncertainty in Visual Place Recognition

Mubariz Zaffar, Liangliang Nan, Julian Kooij
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2024 (Poster Highlight)

[Paper (14M)]

PathNet: Path-Selective Point Cloud Denoising

Zeyong Wei, Honghua Chen, Liangliang Nan, Jun Wang, Jing Qin, Mingqiang Wei
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2024

[Paper (7M)] [Code] [URL]

UniBEV: Multi-modal 3D Object Detection with Uniform BEV Encoders for Robustness against Missing Sensor Modalities

Shiming Wang, Holger Caesar, Liangliang Nan, Julian Kooij
IEEE Intelligent Vehicles Symposium (IVS), 2024

[Paper (3M)] [Code]

MuVieCAST: Multi-View Consistent Artistic Style Transfer

Nail Ibrahimli, Julian Kooij, Liangliang Nan
International Conference on 3D Vision (3DV), 2024

[Paper (6M)] [Code] [Project Page]

Hybrid geometry sets for global registration of cross-source geometric data

Minglei Li, Shu Peng, Liangliang Nan
International Journal of Applied Earth Observation and Geoinformation. Vol. 128, 103733, 2024

[Paper (3M)] [URL]

Influence of geometrical levels of detail and inaccurate material optical properties on daylight simulation

Nima Forouzandeh, Eleonora Brembilla, Liangliang Nan, Jantien Stoter, Alstan Jakubiec
Energy and Buildings. Vol. 306, 113924, 2024

[Paper (5M)] [URL]

Symmetrization of 2D Polygonal Shapes Using Mixed-Integer Programming

Jin Huang, Jantien Stoter, Liangliang Nan
Computer-Aided Design. Vol. 163, 103572, 2023

[Paper (3M)] [Code] [URL]

DDL-MVS: Depth Discontinuity Learning for Multi-View Stereo Networks

Nail Ibrahimli, Hugo Ledoux, Julian Kooij, and Liangliang Nan
Remote Sensing. 15(12), 2970, 2023

[Paper (1M)] [Code] [URL]

CoPR: Toward Accurate Visual Localization With Continuous Place-Descriptor Regression

Mubariz Zaffar, Liangliang Nan, Julian Kooij
IEEE Transactions on Robotics, 2023

[Paper (3M)]

CSDN: Cross-modal Shape-transfer Dual-refinement Network for Point Cloud Completion

Zhe Zhu, Liangliang Nan, Haoran Xie, Honghua Chen, Jun Wang, Mingqiang Wei, Jing Qin
IEEE Transactions on Visualization and Computer Graphics, 2023

[Paper (2M)] [Code]

GlobalMatch: Registration of Forest Terrestrial Point Clouds by Global Matching of Relative Stem Positions

Xufei Wang, Zexin Yang, Xiaojun Cheng, Jantien Stoter, Wenbin Xu, Zhenlun Wu, Liangliang Nan
ISPRS Journal of Photogrammetry and Remote Sensing. Vol. 197, 71-86, 2023

[Paper (6M)] [Code] [URL]

PSSNet: Planarity-sensible Semantic Segmentation of Large-scale Urban Meshes

Weixiao Gao, Liangliang Nan, Bas Boom, Hugo Ledoux
ISPRS Journal of Photogrammetry and Remote Sensing. Vol. 196, 32-44, 2023

[Paper (7M)] [Code] [URL]

Enriching Point Clouds with Implicit Representations for 3D Classification and Segmentation

Zexin Yang, Qin Ye, Jantien Stoter, and Liangliang Nan
Remote Sensing, 15(1), 61, 2023

[Paper (10M)] [Code] [URL]

Reconstructing Compact Building Models from Point Clouds Using Deep Implicit Fields

Zhaiyu Chen, Hugo Ledoux, Seyran Khademi, Liangliang Nan
ISPRS Journal of Photogrammetry and Remote Sensing. Vol. 194, 58-73, 2022

[Paper (5M)] [Code] [URL]

Push-the-Boundary: Boundary-aware Feature Propagation for Semantic Segmentation of 3D Point Clouds

Shenglan Du, Nail Ibrahimli, Jantien Stoter, Julian Kooij, Liangliang Nan
3DV (International Conference on 3D Vision), 2022

[Paper (5M)] [Video] [Code]

Plot-level reconstruction of 3D tree models for aboveground biomass estimation

Guangpeng Fan, Zhenyu Xu, Jinhu Wang, Liangliang Nan, Huijie Xiao, Zhiming Xin, Feixiang Chen
Ecological Indicators, Vol. 142, 109211, 2022

[Paper (11M)] [URL]

HRBF-Fusion: Accurate 3D reconstruction from RGB-D data using on-the-fly implicits

Yabin Xu, Liangliang Nan, Laishui Zhou, Jun Wang, Charlie C.L. Wang
ACM Transactions on Graphics (presentation at SIGGRAPH 2022), Vol. 41, No. 3, 2022

[Paper (7M)] [Code] [Video]

3D Instance Segmentation of MVS Buildings

Jiazhou Chen, Yanghui Xu, Shufang Lu, Ronghua Liang, Liangliang Nan
IEEE Transactions on Geoscience and Remote Sensing. vol. 60, pp. 1-14, 2022

[Paper (14M)] [Video] [Dataset]

City3D: Large-Scale Building Reconstruction from Airborne LiDAR Point Clouds

Jin Huang, Jantien Stoter, Ravi Peters, Liangliang Nan
Remote Sensing. 14(9), 2254. 2022

[Paper (6M)] [Code]

Efficient MSPSO Sampling for Object Detection and 6D Pose Estimation in 3D Scenes

Xuejun Xing, Jianwei Guo, Liangliang Nan, Qingyi Gu, Xiaopeng Zhang, Dong-Ming Yan
IEEE Transactions on Industrial Electronics. v69 (10), 10281-10291. 2022

[Paper (13M)] [URL]

Multiple object tracking using a transform space

Minglei Li, Jiasong Li, Alexis Tamayo, Liangliang Nan
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 137-143. 2022

[Paper (2M)]

Easy3D: a lightweight, easy-to-use, and efficient C++ library for processing and rendering 3D data

Liangliang Nan
Journal of Open Source Software, 6(64), 3255, 2021

[Paper (3M)] [Code]

SUM: A Benchmark Dataset of Semantic Urban Meshes

Weixiao Gao, Liangliang Nan, Bas Boom, and Hugo Ledoux
ISPRS Journal of Photogrammetry and Remote Sensing. 179(2021), 108-120. 2021

[Paper (7M)] [URL] [Project Page]

Feature-preserving 3D Mesh Simplification for Urban Buildings

Minglei Li and Liangliang Nan
ISPRS Journal of Photogrammetry and Remote Sensing. 173 (2021), 135–150. 2021

[Paper (2M)] [URL]

ComNet: Combinational Neural Network for Object Detection in UAV-Borne Thermal Images

Minglei Li, Xingke Zhao, Jiasong Li, and Liangliang Nan
IEEE Transactions on Geoscience and Remote Sensing. vol. 59, no. 8, pp. 6662-6673, Aug. 2021

[Paper (2M)] [URL]

AdQSM: A New Method for Estimating Above-Ground Biomass from TLS Point Clouds

Guangpeng Fan, Liangliang Nan, Yanqi Dong, Xiaohui Su, and Feixiang Chen
Remote Sensing. 12(18), 3089, 2020

[Paper (4M)] [URL]

Structure-aware Building Mesh Polygonization

Vasileios Bouzas, Hugo Ledoux, and Liangliang Nan
ISPRS Journal of Photogrammetry and Remote Sensing. 167(2020), 432-442, 2020

[Paper (5M)] [Code] [URL]

A New Quantitative Approach to Tree Attributes Estimation Based on LiDAR Point Clouds

Guangpeng Fan, Liangliang Nan, Feixiang Chen, Yanqi Dong, Zhiming Wang, Hao Li, and Danyu Chen
Remote Sensing. 12(11), 1779, 2020

[Paper (4M)] [URL]

PLADE: A Plane-based Descriptor for Point Cloud Registration with Small Overlap

Songlin Chen, Liangliang Nan, Renbo Xia, Jibin Zhao, and Peter Wonka
IEEE Transactions on Geoscience and Remote Sensing. 58(4), 2530-2540, 2020

[Paper (7M)] [Video] [Code] [Dataset]

AdTree: Accurate, Detailed, and Automatic Modelling of Laser-Scanned Trees

Shenglan Du, Roderik Lindenbergh, Hugo Ledoux, Jantien Stoter, Liangliang Nan
Remote Sensing. 11(18), 2074, 2019

[Paper (8M)] [Code] [URL]

Near Support-free Multi-directional 3D Printing via Global-optimal Decomposition

Yisong Gao, Lifang Wu, Dong-MingYan, Liangliang Nan
Graphical Models. Volume 104, 101034, July 2019

[Paper (3M)][URL]

PolyFit: Polygonal Surface Reconstruction from Point Clouds

Liangliang Nan, Peter Wonka
ICCV 2017

[Paper (8M)] [Video (12M)] [Code] [Executable] [Data (580M)] [Project Page]

Block Assembly for Global Registration of Building Scans

Feilong Yan, Liangliang Nan, Peter Wonka
SIGGRAPH Asia 2016 (ACM Transactions on Graphics, Vol. 35, No. 6, Nov. 2016)

[Paper (7M)] [Video (102M)] [Slides (134M)] [Project Page]

Manhattan-world Urban Reconstruction from Point Clouds

Minglei Li, Peter Wonka, Liangliang Nan
ECCV 2016 (Lecture Notes in Computer Science, Vol.9908, pp.54-69, Sept.2016)

[Paper (12M)] [Poster (3M)] [Data & Results (7M)] [Video (28M)] [Code & Exe (51M)] [Project Page]

Large Scale Asset Extraction for Urban Images

Lama Affara, Liangliang Nan, Bernard Ghanem, Peter Wonka
ECCV 2016 (Lecture Notes in Computer Science, Vol.9907, pp.437-452, Sept.2016)

[Paper (8M)] [Poster (3M)] [Video (31M)] [Suppl Material (1M)]

Curve Networks for Surface Reconstruction

Yuanhao Cao, Liangliang Nan, Peter Wonka
arXiv:1603.08753 [cs.GR], Mar.2016

[Paper (3M)] [Video (7M)] [URL]

Fitting Boxes to Manhattan Scenes Using Linear Integer Programming

Minglei Li, Liangliang Nan, Shaochuang Liu
International Journal of Digital Earth, Vol. 9, No.8, pp.806-817, Feb.2016

[Paper (4M)] [URL]

Symmetrization of Facade Layouts

Haiyong Jiang, Dong-Ming Yan, Weiming Dong, Fuzhang Wu, Liangliang Nan, Xiaopeng Zhang
Computational Visual Media 2016 (Graphical Models, Vol.85, pp.11-21, Feb.2016)

[Paper (13M)] [URL]

Automatic Constraint Detection for 2D Layout Regularization

Haiyong Jiang, Liangliang Nan, Dong-Ming Yan, Weiming Dong, Xiaopeng Zhang, Peter Wonka
IEEE Transactions on Visualization and Computer Graphics, Vol.22, No.8, pp.1933-1944, Aug.2016

[Paper (4M)] [Suppl Material (24M)] [URL]

Reconstructing Building Mass Models from UAV images (Best Paper Award)

Minglei Li, Liangliang Nan, Neil Smith, Peter Wonka
CAD/Graphics 2015 (Computers & Graphics, Vol. 54, pp.84-93, Feb.2016)

[Paper (8M)] [Data (330M)] [URL]

Template Assembly for Detailed Urban Reconstruction

Liangliang Nan, Caigui Jiang, Bernard Ghanem, Peter Wonka
Eurographics 2015 (Computer Graphics Forum, Vol. 34, No. 2, May.2015)

[Paper (14M)] [Suppl Material 1] [Suppl Material 2] [Video (58M)] [Slides (88M)] [Project page]

2D-3D Lifting for Shape Reconstruction

Liangliang Nan, Andrei Sharf, Baoquan Chen
Pacific Graphics 2014 (Computer Graphics Forum, Vol. 33, No. 7, Oct.2014)

[Paper (14M)] [Slides (24M)] [Suppl Video (7M)] [Data & Results (56M)]

A Search-Classify Approach for Cluttered Indoor Scene Understanding

Liangliang Nan, Ke Xie, Andrei Sharf
SIGGRAPH Asia 2012 (ACM Transactions on Graphics, Vol. 31, No. 6, Nov.2012)

[Paper (6M)] [Slides (13M)] [Data (290)] [Project Page]

Conjoining Gestalt Rules for Abstraction of Architectural Drawings

Liangliang Nan, Andrei Sharf, Ke Xie, Tien-Tsin Wong, Oliver Deussen, Daniel Cohen-Or, Baoquan Chen
SIGGRAPH Asia 2011 (ACM Transactions on Graphics, Vol. 30, No. 6, Dec.2011)

[Paper (12M)] [Video (58M)] [Suppl Material (11M)] [Slides (6M)] [Data (7M)] [Project Page]

SmartBoxes for Interactive Urban Reconstruction

Liangliang Nan, Andrei Sharf, Hao Zhang, Daniel Cohen-Or, Baoquan Chen
SIGGRAPH 2010 (ACM Transactions on Graphics, Vol. 29, No. 4, Jul.2010)

[Paper (5M)] [Video (120M)] [Live Demo (52M)] [Slides (12M)] [Data (95M)] [Media] [Project Page]

Silhouette-based Interactive Editing for Mesh Models

Liangliang Nan, Weijun Liu
CAD/CG' 2010, pp.755-764, 28-30 Jul.2010, Taiyuan, China

[Paper] [Video (17M)]

点云数据重建的最新进展与构想

南亮亮, 陈宝权
先进技术研究通报. Vol.3, No.6, pp.45-49, Jun.2009

[Paper]

Publications in Reverse Engineering and Laser Cladding

Laser Remanufacturing Based on the Integration of Reverse Engineering and Laser Cladding [PDF]
Liangliang Nan, Weijun Liu and Kai Zhang
International Journal of Computer Applications in Technology. Vol.37, No.2, pp.116-124, 2010

基于神经网络的激光熔覆高度预测研究 [PDF]
姜淑娟, 刘伟军, 南亮亮
机械工程学报. Vol.45, No.3, pp.269-274, Mar.2009

逆向工程三维测量和数据处理
南亮亮, 刘伟军
仪器仪表学报. Vol.28, No.4, pp.53-55, Apr.2007

Sensing and Control for Geometry Stability of the Melt Pool and the Cross Sectional Area in Laser Cladding [PDF]
Liangliang Nan, Weijun Liu
Proceedings of the International Conference on Innovative Computing, Information and Control (ICICIC). Vol.1, pp.521-524, 30 Aug. - 1 Sept. 2006, Beijing, China

Modeling for Laser-Material Interaction to Predict and Control the Cross Sectional Area of Coaxial Laser Cladding with Powder [PDF]
Liangliang Nan, Weijun Liu and Kai Zhang
Proceedings of the International conference on Advanced Design and Manufacture (ADM). pp.386-390, 8-10 Jan.2006, Harbin, China