Search Results for author: Huan Lei

Found 14 papers, 7 papers with code

Consensus-based construction of high-dimensional free energy surface

1 code implementation8 Nov 2023 Liyao Lyu, Huan Lei

One essential problem in quantifying the collective behaviors of molecular systems lies in the accurate construction of free energy surfaces (FESs).

Efficient Exploration

Training with Product Digital Twins for AutoRetail Checkout

1 code implementation18 Aug 2023 Yue Yao, Xinyu Tian, Zheng Tang, Sujit Biswas, Huan Lei, Tom Gedeon, Liang Zheng

Because the digital twins individually mimic user bias, the resulting DT training set better reflects the characteristics of the target scenario and allows us to train more effective product detection and tracking models.

Large-scale Training Data Search for Object Re-identification

1 code implementation CVPR 2023 Yue Yao, Huan Lei, Tom Gedeon, Liang Zheng

We consider a scenario where we have access to the target domain, but cannot afford on-the-fly training data annotation, and instead would like to construct an alternative training set from a large-scale data pool such that a competitive model can be obtained.

Object Specificity

CircNet: Meshing 3D Point Clouds with Circumcenter Detection

1 code implementation23 Jan 2023 Huan Lei, Ruitao Leng, Liang Zheng, Hongdong Li

In this paper, we leverage the duality between a triangle and its circumcenter, and introduce a deep neural network that detects the circumcenters to achieve point cloud triangulation.

Surface Reconstruction

DeePN$^2$: A deep learning-based non-Newtonian hydrodynamic model

no code implementations29 Dec 2021 Lidong Fang, Pei Ge, Lei Zhang, Weinan E, Huan Lei

A long standing problem in the modeling of non-Newtonian hydrodynamics of polymeric flows is the availability of reliable and interpretable hydrodynamic models that faithfully encode the underlying micro-scale polymer dynamics.

Mesh Convolution with Continuous Filters for 3D Surface Parsing

2 code implementations3 Dec 2021 Huan Lei, Naveed Akhtar, Mubarak Shah, Ajmal Mian

In this paper, we propose a series of modular operations for effective geometric feature learning from 3D triangle meshes.

Scene Parsing Scene Segmentation

Picasso: A CUDA-based Library for Deep Learning over 3D Meshes

2 code implementations CVPR 2021 Huan Lei, Naveed Akhtar, Ajmal Mian

We present Picasso, a CUDA-based library comprising novel modules for deep learning over complex real-world 3D meshes.

SegGCN: Efficient 3D Point Cloud Segmentation With Fuzzy Spherical Kernel

no code implementations CVPR 2020 Huan Lei, Naveed Akhtar, Ajmal Mian

Our second major contribution comes as the proposal of an efficient graph convolutional network, SegGCN for segmenting point clouds.

Clustering Point Cloud Segmentation

Machine learning based non-Newtonian fluid model with molecular fidelity

no code implementations7 Mar 2020 Huan Lei, Lei Wu, Weinan E

We introduce a machine-learning-based framework for constructing continuum non-Newtonian fluid dynamics model directly from a micro-scale description.

BIG-bench Machine Learning

Octree guided CNN with Spherical Kernels for 3D Point Clouds

no code implementations CVPR 2019 Huan Lei, Naveed Akhtar, Ajmal Mian

We propose an octree guided neural network architecture and spherical convolutional kernel for machine learning from arbitrary 3D point clouds.

3D Object Classification 3D Part Segmentation +1

Spherical Convolutional Neural Network for 3D Point Clouds

no code implementations21 May 2018 Huan Lei, Naveed Akhtar, Ajmal Mian

We propose a neural network for 3D point cloud processing that exploits `spherical' convolution kernels and octree partitioning of space.

3D Object Classification General Classification +1

Color Constancy with Derivative Colors

no code implementations25 Nov 2016 Huan Lei, Guang Jiang, Long Quan

While extracting derivative colors from achromatic regions to approximate the illuminant color well is basically straightforward, the success of our extraction in highlight regions is attributed to the different rates of variation of the diffuse and specular magnitudes in the dichromatic reflection model.

Color Constancy Density Estimation

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