Search Results for author: Xianwei Zheng

Found 12 papers, 6 papers with code

CoMatcher: Multi-View Collaborative Feature Matching

no code implementations2 Apr 2025 Jintao Zhang, Zimin Xia, Mingyue Dong, Shuhan Shen, Linwei Yue, Xianwei Zheng

This paper proposes a multi-view collaborative matching strategy for reliable track construction in complex scenarios.

Scene Understanding set matching

Deferred Poisoning: Making the Model More Vulnerable via Hessian Singularization

no code implementations6 Nov 2024 Yuhao He, Jinyu Tian, Xianwei Zheng, Li Dong, Yuanman Li, Jiantao Zhou

We achieve this by ensuring the poisoned model's loss function has a similar value as a normally trained model at each input sample but with a large local curvature.

Image Classification

PolyRoom: Room-aware Transformer for Floorplan Reconstruction

1 code implementation15 Jul 2024 Yuzhou Liu, Lingjie Zhu, Xiaodong Ma, Hanqiao Ye, Xiang Gao, Xianwei Zheng, Shuhan Shen

To tackle these challenges, we present PolyRoom, a room-aware Transformer that leverages uniform sampling representation, room-aware query initialization, and room-aware self-attention for floorplan reconstruction.

Stratified Avatar Generation from Sparse Observations

no code implementations CVPR 2024 Han Feng, Wenchao Ma, Quankai Gao, Xianwei Zheng, Nan Xue, Huijuan Xu

This task is challenging due to the limited input from Head Mounted Devices, which capture only sparse observations from the head and hands.

Decoder

PanoPose: Self-supervised Relative Pose Estimation for Panoramic Images

no code implementations CVPR 2024 Diantao Tu, Hainan Cui, Xianwei Zheng, Shuhan Shen

Instead of solving the problem in the motion averaging phase we focus on estimating scaled relative pose with the help of panoramic cameras and deep neural networks.

Pose Estimation Translation

Learning Deformable Hypothesis Sampling for Accurate PatchMatch Multi-View Stereo

1 code implementation26 Dec 2023 Hongjie Li, Yao Guo, Xianwei Zheng, Hanjiang Xiong

This paper introduces a learnable Deformable Hypothesis Sampler (DeformSampler) to address the challenging issue of noisy depth estimation for accurate PatchMatch Multi-View Stereo (MVS).

Depth Estimation Depth Prediction

Holistic Geometric Feature Learning for Structured Reconstruction

1 code implementation ICCV 2023 Ziqiong Lu, Linxi Huan, Qiyuan Ma, Xianwei Zheng

The inference of topological principles is a key problem in structured reconstruction.

HoW-3D: Holistic 3D Wireframe Perception from a Single Image

1 code implementation15 Aug 2022 Wenchao Ma, Bin Tan, Nan Xue, Tianfu Wu, Xianwei Zheng, Gui-Song Xia

This paper studies the problem of holistic 3D wireframe perception (HoW-3D), a new task of perceiving both the visible 3D wireframes and the invisible ones from single-view 2D images.

A multi-domain splitting framework for time-varying graph structure

no code implementations29 Sep 2021 Zehua Yu, Xianwei Zheng, Zhulun Yang, Xutao Li

To address the anomaly detection problem for datasets with a spatial-temporal structure, in this work, we propose a novel graph multi-domain splitting framework, called GMDS, by integrating the time, vertex, and frequency features to locate the anomalies.

Anomaly Detection

Unmixing Convolutional Features for Crisp Edge Detection

1 code implementation19 Nov 2020 Linxi Huan, Nan Xue, Xianwei Zheng, wei he, Jianya Gong, Gui-Song Xia

This paper presents a context-aware tracing strategy (CATS) for crisp edge detection with deep edge detectors, based on an observation that the localization ambiguity of deep edge detectors is mainly caused by the mixing phenomenon of convolutional neural networks: feature mixing in edge classification and side mixing during fusing side predictions.

Edge Classification Edge Detection

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