ACM SIGGRAPH/Transactions on Graphics
Noah Duncan, Lap-Fai Yu, Sai-Kit Yeung, Demetri Terzopoulos
Approximate Dissections.
ACM Transactions on Graphics (Proceeding of SIGGRAPH Asia 2017)
Project Page, Paper, Video, Bibtex
Inspired by tangrams, our approach can automatically generate pieces that can be reassembled into different interesting shapes. Conditionally accepted, more details coming soon!
Noah Duncan, Lap-Fai Yu, Sai-Kit Yeung
Interchangeable Components for Hands-On Assembly Based Modelling.
ACM Transactions on Graphics (Proceeding of SIGGRAPH Asia 2016)
Featured in SIGGRAPH Asia 2016 technical papers video trailer
Project Page, Paper (High Res), Paper (Low Res), Video, Fast Forward, Bibtex
This paper may be regarded as a co-fabrication approach for generating a set of seamlessly interchangeable components from 3D Models. It can be applied for toy and product design. From a small set of components generated by our approach, you can assemble thousands of different objects by hand. Have fun!
Tian Feng, Lap-Fai Yu, Sai-Kit Yeung, KangKang Yin, Kun Zhou
Crowd-driven Mid-scale Layout Design.
ACM Transactions on Graphics (Proceeding of SIGGRAPH 2016)
Project Page, Paper (High Res), Paper (Low Res), Video, Bibtex
This paper proposes to use crowd simulations to procedurally generate crowd-aware layout designs.
Noah Duncan, Lap-Fai Yu, Sai-Kit Yeung, Demetri Terzopoulos
Zoomorphic Design.
ACM Transactions on Graphics (Proceeding of SIGGRAPH 2015)
Project Page, Paper, Video, Bibtex
This paper describes a computational approach to generate some cool animal-inspired designs.
Lap-Fai Yu, Sai-Kit Yeung, Demetri Terzopoulos, Tony F. Chan
DressUp! Outfit Synthesis through Automatic Optimization.
ACM Transactions on Graphics (Proceeding of SIGGRAPH Asia 2012)
Featured in SIGGRAPH Asia 2012 technical papers video trailer
Project Page, Paper (High Res), Paper (Low Res), Bibtex
In addition to dressing someone up nicely, one can also apply the technique to avoid having repeated guys in video game scenes, e.g. GTA   
Lap-Fai Yu, Sai-Kit Yeung, Chi-Keung Tang, Demetri Terzopoulos,
Tony F. Chan, Stanley J. Osher
Make it Home: Automatic Optimization of Furniture Arrangement.
ACM Transactions on Graphics (Proceeding of SIGGRAPH 2011)
Project Page, Paper, Bibtex
This idea is rooted from the old days when I was tired of the monotonous interior layouts of role-playing game worlds. Coincidentally, our goal fitted perfectly well with SIGGRAPH 2011's slogan, Make it home.
Conferences
Hanqing Wang, Wei Liang, Lap-Fai Yu
Transferring Objects: Joint Inference of Container and Human Pose.
IEEE International Conference on Computer Vision (ICCV 2017)
Project Page, Paper, Video, Bibtex
Our approach jointly infers the human pose and the container for performing a transfer task.
Carla Aravena*, Mark Vo*, Tao Gao, Takaaki Shiratori, Lap-Fai Yu
*Equal contributors
Perception Meets Examination: Studying Deceptive Behaviors in VR.
Proceedings of the 39th Annual Meeting of the Cognitive Science Society (CogSci 2017)
Project Page, Paper, Video, Bibtex
An interesting study on human deceptive behavior based on the Theory of Mind inspired by the game Classroom Aquatic.
Binh-Son Hua, Quang-Hieu Pham, Duc Thanh Nguyen, Minh-Khoi Tran, Lap-Fai Yu, Sai-Kit Yeung
SceneNN: a Scene Meshes Dataset with aNNotations.
IEEE International Conference on 3D Vision (3DV 2016)
Oral presentation
Best Paper Honorable Mention
Project Website, Paper, Supplementary Material, Bibtex
We provide 100+ scene meshes with detailed annotations. The dataset will keep updating and expanding. Stay tuned on our project website.
Chen Li, Lap-Fai Yu, Zhichao Lu, Yasuyuki Matsushita, Kun Zhou, Stephen Lin
Continuous Symmetric Stereo with Adaptive Outlier Handling.
IEEE International Conference on 3D Vision (3DV 2015)
Paper, Supplementary Material, Poster, Bibtex
A stereo matching technique that provides a good combination of accuracy and speed, allowing one to generate high-quality reconstruction of outdoor images even with complex occlusions. More details coming soon.
Lap-Fai Yu, Noah Duncan, Sai-Kit Yeung
Fill and Transfer: A Simple Physics-based Approach for Containability Reasoning.
IEEE International Conference on Computer Vision (ICCV 2015)
Project Page, Paper, Supplementary Material, Video, Bibtex
We use simple physics to reason about the fill and transfer directions of containers. Many thanks to the anonymous chef for cooking our food slowly while Noah and I were baking this idea in a food court (and the food was yummy).
Lap-Fai Yu, Sai-Kit Yeung, Yu-Wing Tai, Stephen Lin
Shading-based Shape Refinement of RGB-D Images.
IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2013)
Paper (High Res), Paper (Low Res), Video, Bibtex
I had much fun playing with the Microsoft Kinect. To me, this paper also serves as my travel log in 2012, as the RGB-D images were captured in different countries throughout my travel while the formulation was written mostly during my flight over the Pacific Ocean.
Lap-Fai Yu, Sai-Kit Yeung, Yu-Wing Tai, Demetri Terzopoulos, Tony F. Chan
Outdoor Photometric Stereo.
IEEE International Conference on Computational Photography (ICCP 2013)
Oral presentation
Paper (High Res), Paper (Low Res), Video, Data, Bibtex
This work brings photometric stereo out of the lab.
Journals
Chenfanfu Jiang, Yixin Zhu, Siyuan Qi, Siyuan Huang, Jenny Lin, Xingwen Guo, Lap-Fai Yu, Demetri Terzopoulos, Song-Chun Zhu.
Configurable, Photorealistic Image Rendering and Ground Truth Synthesis by Sampling Stochastic Grammars Representing Indoor Scenes.
arxiv, 2017
Paper, Video, Bibtex
By sampling stochastic scene grammars, different realistic scenes can be synthesized for purposes such as graphics for vision and virtual reality.
Haikun Huang, Ni-Ching Lin, Lorenzo Barrett, Darian Springer, Hsueh-Cheng Wang, Marc Pomplun, Lap-Fai Yu
Automatic Optimization of Wayfinding Design.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 2017
Project Page, Paper, Video, Bibtex
An automatic tool to help wayfinding designers create better wayfinding designs for architectural spaces, and to help level designers create better game levels.
Changyang Li, Wei Liang, Chris Quigley, Yibiao Zhao, Lap-Fai Yu
Earthquake Safety Training through Virtual Drills.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 2017
(Special Issue on IEEE Virtual Reality 2017)

Project Page, Paper, Video, Bibtex
Experience the shake and learn to protect yourself via immersive virtual environments.
Mahdi Jampour, Chen Li, Lap-Fai Yu, Kun Zhou, Stephen Lin, Horst Bischof
Face Inpainting based on High-Level Facial Attributes.
Computer Vision and Image Understanding (CVIU), 2017
Project Page, Paper, Supplementary, Video, Bibtex
Combining high-level and low-level cues for inpainting occluded face images.
Mahdi Jampour, Mohammad-Shahram Moin, Lap-Fai Yu, Horst Bischof
Mapping Forests: a Comprehensive Approach for Non-linear Mapping Problems.
Journal of Mathematical Imaging and Vision (JMIV), 2017
Paper, Bibtex
A new and robust mapping approach based on regression transformations for computer vision applications.
Duc Thanh Nguyen, Binh-Son Hua, Lap-Fai Yu, Sai-Kit Yeung
A Robust 3D-2D Interactive Tool for Scene Segmentation and Annotation.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 2017
Project Page, Paper, Video, Bibtex
Details of our 3D scene annotation tool for annotating the SceneNN dataset.
Lap-Fai Yu, Sai-Kit Yeung, Demetri Terzopoulos
The Clutterpalette: An Interactive Tool for Detailing Indoor Scenes.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 2014
Project Page, Paper (High Res), Paper (Low Res), Video, Bibtex
Having trouble detailing your virtual worlds? The Clutterpalette helps you quickly add scene details by using the clutter object distributions learnt from real-world RGB-D scene data.
Workshops
Binh-Son Hua, Quang-Trung Truong, Minh-Khoi Tran, Quang-Hieu Pham, Lap-Fai Yu, Duc Thanh Nguyen, Sai-Kit Yeung, et al.
SHREC'17: RGB-D to CAD Retrieval with ObjectNN Dataset.
Eurographics Workshop on 3D Object Retrieval, 2017
Project Page, Paper, Bibtex
A report of our RGB-D object-to-CAD object retrieval contest.
Haikun Huang, Ni-Ching Lin, Lorenzo Barrett, Darian Springer, Hsueh-Cheng Wang, Marc Pomplun, Lap-Fai Yu
Analyzing Visual Attention via Virtual Environments.
Virtual Reality meets Physical Reality Workshop, SIGGRAPH Asia, 2016
Paper, Bibtex

Theses
Lap-Fai Yu
Data-driven Optimization for Modeling in Computer Graphics and Vision.
Ph.D. Dissertation, Computer Science Department, UCLA, 2013
Advisor: Demetri Terzopoulos
Lap-Fai Yu
3D Reconstruction and Synthesis of Facial Expressions using a Manifold Alignment Framework.
M.Phil. Thesis, Department of Computer Science and Engineering, HKUST, 2009
Advisor: Dit-Yan Yeung
My first attempt to apply data-driven techniques to computer graphics, in this case, to train a controller to synthesize 3D facial expression. The inspiration was from the dull faces I always saw in video games.
Patents
Lap-Fai Yu, Sai-Kit Yeung, Demetri Terzopoulos, Tony F. Chan
Clothing Matching System and Methods.
US patent application no. 61/725, 073
Lap-Fai Yu, Sai-Kit Yeung, Chi-Keung Tang, Demetri Terzopoulos, Tony F. Chan, Stanley J. Osher
Automatic Optimization of Scene Configuration.
US patent application no. 61/675, 251