Search Results for author: Zhuwen Li

Found 19 papers, 12 papers with code

PointPWC-Net: Cost Volume on Point Clouds for (Self-)Supervised Scene Flow Estimation

1 code implementation ECCV 2020 Wenxuan Wu, Zhi Yuan Wang, Zhuwen Li, Wei Liu, Li Fuxin

We propose a novel end-to-end deep scene flow model, called PointPWC-Net, that directly processes 3D point cloud scenes with large motions in a coarse-to-fine fashion.

Scene Flow Estimation

Pixel2Mesh++: 3D Mesh Generation and Refinement from Multi-View Images

no code implementations21 Apr 2022 Chao Wen, yinda zhang, Chenjie Cao, Zhuwen Li, xiangyang xue, Yanwei Fu

We study the problem of shape generation in 3D mesh representation from a small number of color images with or without camera poses.

Video Depth Estimation by Fusing Flow-to-Depth Proposals

1 code implementation30 Dec 2019 Jiaxin Xie, Chenyang Lei, Zhuwen Li, Li Erran Li, Qifeng Chen

Our flow-to-depth layer is differentiable, and thus we can refine camera poses by maximizing the aggregated confidence in the camera pose refinement module.

Depth Estimation Optical Flow Estimation

DeepSFM: Structure From Motion Via Deep Bundle Adjustment

1 code implementation ECCV 2020 Xingkui Wei, yinda zhang, Zhuwen Li, Yanwei Fu, xiangyang xue

The explicit constraints on both depth (structure) and pose (motion), when combined with the learning components, bring the merit from both traditional BA and emerging deep learning technology.

Pose Estimation

Neural Point Cloud Rendering via Multi-Plane Projection

1 code implementation CVPR 2020 Peng Dai, yinda zhang, Zhuwen Li, Shuaicheng Liu, Bing Zeng

The input to the network is the raw point cloud of a scene and the output are image or image sequences from a novel view or along a novel camera trajectory.

PointPWC-Net: A Coarse-to-Fine Network for Supervised and Self-Supervised Scene Flow Estimation on 3D Point Clouds

1 code implementation27 Nov 2019 Wenxuan Wu, Zhiyuan Wang, Zhuwen Li, Wei Liu, Li Fuxin

We propose a novel end-to-end deep scene flow model, called PointPWC-Net, on 3D point clouds in a coarse-to-fine fashion.

Scene Flow Estimation

Deep Stereo using Adaptive Thin Volume Representation with Uncertainty Awareness

1 code implementation CVPR 2020 Shuo Cheng, Zexiang Xu, Shilin Zhu, Zhuwen Li, Li Erran Li, Ravi Ramamoorthi, Hao Su

In contrast, we propose adaptive thin volumes (ATVs); in an ATV, the depth hypothesis of each plane is spatially varying, which adapts to the uncertainties of previous per-pixel depth predictions.

3D Reconstruction Point Clouds

3D Rigid Motion Segmentation with Mixed and Unknown Number of Models

no code implementations16 Aug 2019 Xun Xu, Loong-Fah Cheong, Zhuwen Li

Many real-world video sequences cannot be conveniently categorized as general or degenerate; in such cases, imposing a false dichotomy in using the fundamental matrix or homography model for motion segmentation on video sequences would lead to difficulty.

Model Selection Motion Segmentation

Pixel2Mesh++: Multi-View 3D Mesh Generation via Deformation

1 code implementation ICCV 2019 Chao Wen, yinda zhang, Zhuwen Li, Yanwei Fu

We study the problem of shape generation in 3D mesh representation from a few color images with known camera poses.

Learning for Multi-Type Subspace Clustering

1 code implementation3 Apr 2019 Xun Xu, Loong-Fah Cheong, Zhuwen Li

Subspace clustering has been extensively studied from the hypothesis-and-test, algebraic, and spectral clustering based perspectives.

Learning for Multi-Model and Multi-Type Fitting

no code implementations29 Jan 2019 Xun Xu, Loong-Fah Cheong, Zhuwen Li

Multi-model fitting has been extensively studied from the random sampling and clustering perspectives.

Model Selection

Motion Segmentation by Exploiting Complementary Geometric Models

1 code implementation CVPR 2018 Xun Xu, Loong-Fah Cheong, Zhuwen Li

Many real-world sequences cannot be conveniently categorized as general or degenerate; in such cases, imposing a false dichotomy in using the fundamental matrix or homography model for motion segmentation would lead to difficulty.

Motion Segmentation

Pixel2Mesh: Generating 3D Mesh Models from Single RGB Images

4 code implementations ECCV 2018 Nanyang Wang, yinda zhang, Zhuwen Li, Yanwei Fu, Wei Liu, Yu-Gang Jiang

We propose an end-to-end deep learning architecture that produces a 3D shape in triangular mesh from a single color image.

3D Object Reconstruction

SCAMS: Simultaneous Clustering and Model Selection

no code implementations CVPR 2014 Zhuwen Li, Loong-Fah Cheong, Steven Zhiying Zhou

While clustering has been well studied in the past decade, model selection has drawn less attention.

Model Selection

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