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Existing LiDAR-Camera fusion methods have achieved strong results in 3D object detection. To address the sparsity of point clouds, previous approaches typically construct spatial pseudo point clouds via depth completion as auxiliary input…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Jijun Wang , Yan Wu , Yujian Mo , Junqiao Zhao , Jun Yan , Yinghao Hu

Absolute Pose Regression (APR) has emerged as a compelling paradigm for visual localization. However, APR models typically operate as black boxes, directly regressing a 6-DoF pose from a query image, which can lead to memorizing training…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Changyang Li , Xuejian Ma , Lixiang Liu , Zhan Li , Qingan Yan , Yi Xu

3D model retrieval techniques can be classified as histogram-based, view-based and graph-based approaches. We propose a hybrid shape descriptor which combines the global and local radial distance features by utilizing the histogram-based…

图形学 · 计算机科学 2013-06-11 Bo Li , Henry Johan

Monocular 3D object detection aims to extract the 3D position and properties of objects from a 2D input image. This is an ill-posed problem with a major difficulty lying in the information loss by depth-agnostic cameras. Conventional…

计算机视觉与模式识别 · 计算机科学 2020-09-01 Lijie Liu , Chufan Wu , Jiwen Lu , Lingxi Xie , Jie Zhou , Qi Tian

The choice of representation for geographic location significantly impacts the accuracy of models for a broad range of geospatial tasks, including fine-grained species classification, population density estimation, and biome classification.…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Aayush Dhakal , Srikumar Sastry , Subash Khanal , Adeel Ahmad , Eric Xing , Nathan Jacobs

Object detection and semantic segmentation with the 3D lidar point cloud data require expensive annotation. We propose a data augmentation method that takes advantage of already annotated data multiple times. We propose an augmentation…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Petr Šebek , Šimon Pokorný , Patrik Vacek , Tomáš Svoboda

Visual Place Recognition (VPR) plays a critical role in many localization and mapping pipelines. It consists of retrieving the closest sample to a query image, in a certain embedding space, from a database of geotagged references. The image…

计算机视觉与模式识别 · 计算机科学 2024-07-03 Sergio Izquierdo , Javier Civera

ITER's working environment is characterized by extreme conditions, that deem maintenance and inspection tasks to be carried out through remote handling. 3D Node is a hardware/software module that extracts critical information from the…

图像与视频处理 · 电气工程与系统科学 2020-11-23 Laura Goncalves Ribeiro , Olli J. Suominen , Sari Peltonen , Emilio Ruiz Morales , Atanas Gotchev

The huge variance of human pose and the misalignment of detected human images significantly increase the difficulty of person Re-Identification (Re-ID). Moreover, efficient Re-ID systems are required to cope with the massive visual data…

计算机视觉与模式识别 · 计算机科学 2017-09-14 Longhui Wei , Shiliang Zhang , Hantao Yao , Wen Gao , Qi Tian

Long-Term Person Re-Identification (LT-ReID) has become increasingly crucial in computer vision and biometrics. In this work, we aim to extend LT-ReID beyond pedestrian recognition to include a wider range of real-world human activities…

计算机视觉与模式识别 · 计算机科学 2023-09-22 Feng Liu , Minchul Kim , ZiAng Gu , Anil Jain , Xiaoming Liu

3D LiDAR sensors are indispensable for the robust vision of autonomous mobile robots. However, deploying LiDAR-based perception algorithms often fails due to a domain gap from the training environment, such as inconsistent angular…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Kazuto Nakashima , Yumi Iwashita , Ryo Kurazume

Real-time efficient perception is critical for autonomous navigation and city scale sensing. Orthogonal to architectural improvements, streaming perception approaches have exploited adaptive sampling improving real-time detection…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Anurag Ghosh , N. Dinesh Reddy , Christoph Mertz , Srinivasa G. Narasimhan

Existing methods for video-based person re-identification (ReID) mainly learn the appearance feature of a given pedestrian via a feature extractor and a feature aggregator. However, the appearance models would fail when different…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Honghu Pan , Qiao Liu , Yongyong Chen , Yunqi He , Yuan Zheng , Feng Zheng , Zhenyu He

Traditional text detection methods mostly focus on quadrangle text. In this study we propose a novel method named sliding line point regression (SLPR) in order to detect arbitrary-shape text in natural scene. SLPR regresses multiple points…

计算机视觉与模式识别 · 计算机科学 2018-01-31 Yixing Zhu , Jun Du

We propose to leverage recent advances in reliable 2D pose estimation with Convolutional Neural Networks (CNN) to estimate the 3D pose of people from depth images in multi-person Human-Robot Interaction (HRI) scenarios. Our method is based…

计算机视觉与模式识别 · 计算机科学 2020-11-11 Angel Martínez-González , Michael Villamizar , Olivier Canévet , Jean-Marc Odobez

Despite rapid developments in visual image-based road detection, robustly identifying road areas in visual images remains challenging due to issues like illumination changes and blurry images. To this end, LiDAR sensor data can be…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Zhe Chen , Jing Zhang , Dacheng Tao

Place recognition plays a crucial role in re-localization and loop closure detection tasks for robots and vehicles. This paper seeks a well-defined global descriptor for LiDAR-based place recognition. Compared to local descriptors, global…

机器人学 · 计算机科学 2022-09-28 Yongzhi Fan , Xin Du , Lun Luo , Jizhong Shen

3D point clouds play a pivotal role in outdoor scene perception, especially in the context of autonomous driving. Recent advancements in 3D LiDAR segmentation often focus intensely on the spatial positioning and distribution of points for…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Li Li , Hubert P. H. Shum , Toby P. Breckon

Increasing the density of the 3D LiDAR point cloud is appealing for many applications in robotics. However, high-density LiDAR sensors are usually costly and still limited to a level of coverage per scan (e.g., 128 channels). Meanwhile,…

机器人学 · 计算机科学 2022-05-13 Kaicheng Zhang , Ziyang Hong , Shida Xu , Sen Wang

In person re-identification (ReID) tasks, many works explore the learning of part features to improve the performance over global image features. Existing methods explicitly extract part features by either using a hand-designed image…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Dengjie Li , Siyu Chen , Yujie Zhong , Lin Ma