Search Results for author: Huai Yu

Found 18 papers, 8 papers with code

Frequency-Adaptive Low-Latency Object Detection Using Events and Frames

no code implementations5 Dec 2024 Haitian Zhang, Xiangyuan Wang, Chang Xu, Xinya Wang, Fang Xu, Huai Yu, Lei Yu, Wen Yang

We further propose a training strategy, Time Shift, which enforces the module to align the prediction from temporally shifted Event-RGB pairs and their original representation, that is, consistent with Event-aligned annotations.

object-detection Object Detection

QuadricsReg: Large-Scale Point Cloud Registration using Quadric Primitives

no code implementations4 Dec 2024 Ji Wu, Huai Yu, Shu Han, Xi-Meng Cai, Ming-Feng Wang, Wen Yang, Gui-Song Xia

In the realm of large-scale point cloud registration, designing a compact symbolic representation is crucial for efficiently processing vast amounts of data, ensuring registration robustness against significant viewpoint variations and occlusions.

Point Cloud Registration

Unsupervised Multi-view UAV Image Geo-localization via Iterative Rendering

no code implementations22 Nov 2024 Haoyuan Li, Chang Xu, Wen Yang, Li Mi, Huai Yu, Haijian Zhang

As such, our unsupervised paradigm naturally avoids the problem of region-specific overfitting, enabling generic CVGL for UAV images without feature fine-tuning or data-driven training.

geo-localization Image Generation

Learning Cross-view Visual Geo-localization without Ground Truth

no code implementations19 Mar 2024 Haoyuan Li, Chang Xu, Wen Yang, Huai Yu, Gui-Song Xia

We observe that training on unlabeled cross-view images presents significant challenges, including the need to establish relationships within unlabeled data and reconcile view discrepancies between uncertain queries and references.

geo-localization Self-Supervised Learning

QuadricsNet: Learning Concise Representation for Geometric Primitives in Point Clouds

1 code implementation25 Sep 2023 Ji Wu, Huai Yu, Wen Yang, Gui-Song Xia

This paper presents a novel framework to learn a concise geometric primitive representation for 3D point clouds.

Dynamic Coarse-to-Fine Learning for Oriented Tiny Object Detection

1 code implementation CVPR 2023 Chang Xu, Jian Ding, Jinwang Wang, Wen Yang, Huai Yu, Lei Yu, Gui-Song Xia

Despite the exploration of adaptive label assignment in recent oriented object detectors, the extreme geometry shape and limited feature of oriented tiny objects still induce severe mismatch and imbalance issues.

object-detection Object Detection +2

Attention-Enhanced Cross-modal Localization Between 360 Images and Point Clouds

no code implementations6 Dec 2022 Zhipeng Zhao, Huai Yu, Chenwei Lyv, Wen Yang, Sebastian Scherer

To overcome this limitation, we focus on correlating the information of 360 equirectangular images to point clouds, proposing an end-to-end learnable network to conduct cross-modal visual localization by establishing similarity in high-dimensional feature space.

Autonomous Driving Camera Localization +1

Detecting Line Segments in Motion-blurred Images with Events

1 code implementation14 Nov 2022 Huai Yu, Hao Li, Wen Yang, Lei Yu, Gui-Song Xia

To robustly detect line segments over motion blurs, we propose to leverage the complementary information of images and events.

3D Reconstruction Line Segment Detection +1

Unsupervised Multi-View Object Segmentation Using Radiance Field Propagation

no code implementations2 Oct 2022 Xinhang Liu, Jiaben Chen, Huai Yu, Yu-Wing Tai, Chi-Keung Tang

The core of our method is a novel propagation strategy for individual objects' radiance fields with a bidirectional photometric loss, enabling an unsupervised partitioning of a scene into salient or meaningful regions corresponding to different object instances.

3D Object Editing NeRF +3

Motion Robust High-Speed Light-Weighted Object Detection With Event Camera

1 code implementation24 Aug 2022 Bingde Liu, Chang Xu, Wen Yang, Huai Yu, Lei Yu

In this work, we propose a motion robust and high-speed detection pipeline which better leverages the event data.

Data Augmentation object-detection +3

RFLA: Gaussian Receptive Field based Label Assignment for Tiny Object Detection

1 code implementation18 Aug 2022 Chang Xu, Jinwang Wang, Wen Yang, Huai Yu, Lei Yu, Gui-Song Xia

Then, instead of assigning samples with IoU or center sampling strategy, a new Receptive Field Distance (RFD) is proposed to directly measure the similarity between the Gaussian receptive field and ground truth.

Object object-detection +1

ORStereo: Occlusion-Aware Recurrent Stereo Matching for 4K-Resolution Images

no code implementations13 Mar 2021 Yaoyu Hu, Wenshan Wang, Huai Yu, Weikun Zhen, Sebastian Scherer

Stereo reconstruction models trained on small images do not generalize well to high-resolution data.

4k Stereo Matching

ULSD: Unified Line Segment Detection across Pinhole, Fisheye, and Spherical Cameras

2 code implementations6 Nov 2020 Hao Li, Huai Yu, Wen Yang, Lei Yu, Sebastian Scherer

Targeting at the unified line segment detection (ULSD) for both distorted and undistorted images, we propose to represent line segments with the Bezier curve model.

Line Segment Detection

Line-based Camera Pose Estimation in Point Cloud of Structured Environments

no code implementations23 Nov 2019 Huai Yu, Weikun Zhen, Wen Yang, Sebastian Scherer

In this paper, we propose a new 2D-3D registration method to estimate 2D-3D line feature correspondences and the camera pose in untextured point clouds of structured environments.

Camera Localization Camera Pose Estimation +3

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