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We present CrossLoc3D, a novel 3D place recognition method that solves a large-scale point matching problem in a cross-source setting. Cross-source point cloud data corresponds to point sets captured by depth sensors with different…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Tianrui Guan , Aswath Muthuselvam , Montana Hoover , Xijun Wang , Jing Liang , Adarsh Jagan Sathyamoorthy , Damon Conover , Dinesh Manocha

The detection of small road hazards, such as lost cargo, is a vital capability for self-driving cars. We tackle this challenging and rarely addressed problem with a vision system that leverages appearance, contextual as well as geometric…

计算机视觉与模式识别 · 计算机科学 2016-12-21 Sebastian Ramos , Stefan Gehrig , Peter Pinggera , Uwe Franke , Carsten Rother

Point cloud completion aims to recover missing geometric structures from incomplete 3D scans, which often suffer from occlusions or limited sensor viewpoints. Existing methods typically assume fixed input/output densities or rely on…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Da-Yeong Kim , Yeong-Jun Cho

Point cloud completion concerns to predict missing part for incomplete 3D shapes. A common strategy is to generate complete shape according to incomplete input. However, unordered nature of point clouds will degrade generation of…

计算机视觉与模式识别 · 计算机科学 2022-03-01 Xin Wen , Peng Xiang , Zhizhong Han , Yan-Pei Cao , Pengfei Wan , Wen Zheng , Yu-Shen Liu

In NeRF, a critical problem is to effectively estimate the occupancy to guide empty-space skipping and point sampling. Grid-based methods work well for small-scale scenes. However, on large-scale scenes, they are limited by predefined…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Zhenxing Mi , Dan Xu

Accurate grasping is the key to several robotic tasks including assembly and household robotics. Executing a successful grasp in a cluttered environment requires multiple levels of scene understanding: First, the robot needs to analyze the…

机器人学 · 计算机科学 2024-05-13 René Zurbrügg , Yifan Liu , Francis Engelmann , Suryansh Kumar , Marco Hutter , Vaishakh Patil , Fisher Yu

In this paper, we propose a novel iterative multi-task framework to complete the segmentation mask of an occluded vehicle and recover the appearance of its invisible parts. In particular, to improve the quality of the segmentation…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Xiaosheng Yan , Yuanlong Yu , Feigege Wang , Wenxi Liu , Shengfeng He , Jia Pan

We present TOPGN, a novel method for real-time transparent obstacle detection for robot navigation in unknown environments. We use a multi-layer 2D grid map representation obtained by summing the intensities of lidar point clouds that lie…

机器人学 · 计算机科学 2024-08-13 Kasun Weerakoon , Adarsh Jagan Sathyamoorthy , Mohamed Elnoor , Anuj Zore , Dinesh Manocha

Point clouds captured by scanning devices are often incomplete due to occlusion. To overcome this limitation, point cloud completion methods have been developed to predict the complete shape of an object based on its partial input. These…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Lintai Wu , Qijian Zhang , Junhui Hou , Yong Xu

In this paper, we propose PointSeg, a real-time end-to-end semantic segmentation method for road-objects based on spherical images. We take the spherical image, which is transformed from the 3D LiDAR point clouds, as input of the…

计算机视觉与模式识别 · 计算机科学 2018-09-26 Yuan Wang , Tianyue Shi , Peng Yun , Lei Tai , Ming Liu

Pedestrian detection in the wild remains a challenging problem especially for scenes containing serious occlusion. In this paper, we propose a novel feature learning method in the deep learning framework, referred to as Feature Calibration…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Tianliang Zhang , Qixiang Ye , Baochang Zhang , Jianzhuang Liu , Xiaopeng Zhang , Qi Tian

Perception systems of autonomous vehicles are susceptible to occlusion, especially when examined from a vehicle-centric perspective. Such occlusion can lead to overlooked object detections, e.g., larger vehicles such as trucks or buses may…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Xiaofei Zhang , Yining Li , Jinping Wang , Xiangyi Qin , Ying Shen , Zhengping Fan , Xiaojun Tan

3D LiDAR point cloud data is crucial for scene perception in computer vision, robotics, and autonomous driving. Geometric and semantic scene understanding, involving 3D point clouds, is essential for advancing autonomous driving…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Li Li

Loop closure detection is an essential component of Simultaneous Localization and Mapping (SLAM) systems, which reduces the drift accumulated over time. Over the years, several deep learning approaches have been proposed to address this…

机器人学 · 计算机科学 2022-02-09 Daniele Cattaneo , Matteo Vaghi , Abhinav Valada

Point clouds are crucial for capturing three-dimensional data but often suffer from incompleteness due to limitations such as resolution and occlusion. Traditional methods typically rely on point-based approaches within discriminative…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Guoqing Zhang , Jian Liu

In real-world scenarios, scanned point clouds are often incomplete due to occlusion issues. The tasks of self-supervised and weakly-supervised point cloud completion involve reconstructing missing regions of these incomplete objects without…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Lintai Wu , Xianjing Cheng , Yong Xu , Huanqiang Zeng , Junhui Hou

Semantic segmentation serves as a cornerstone of scene understanding in autonomous driving but continues to face significant challenges under complex conditions such as occlusion. Light field and LiDAR modalities provide complementary…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Jie Luo , Yuxuan Jiang , Xin Jin , Mingyu Liu , Yihui Fan

Recently, there has been substantial progress in image synthesis from semantic labelmaps. However, methods used for this task assume the availability of complete and unambiguous labelmaps, with instance boundaries of objects, and class…

计算机视觉与模式识别 · 计算机科学 2021-05-24 Kuldeep Kulkarni , Tejas Gokhale , Rajhans Singh , Pavan Turaga , Aswin Sankaranarayanan

Autonomous driving is a safety-critical application, and it is therefore a top priority that the accompanying assistance systems are able to provide precise information about the surrounding environment of the vehicle. Tasks such as 3D…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Dan Halperin , Niklas Eisl

3D point cloud segmentation has a wide range of applications in areas such as autonomous driving, augmented reality, virtual reality and digital twins. The point cloud data collected in real scenes often contain small objects and categories…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Chade Li , Pengju Zhang , Jiaming Zhang , Yihong Wu