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This paper introduces LiGSM, a novel LiDAR-enhanced 3D Gaussian Splatting (3DGS) mapping framework that improves the accuracy and robustness of 3D scene mapping by integrating LiDAR data. LiGSM constructs joint loss from images and LiDAR…

Robotics · Computer Science 2025-03-10 Jian Shen , Huai Yu , Ji Wu , Wen Yang , Gui-Song Xia

Diffusion models are a powerful framework for tackling ill-posed problems, with recent advancements extending their use to point cloud upsampling. Despite their potential, existing diffusion models struggle with inefficiencies as they map…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Zhi-Song Liu , Chenhang He , Lei Li

This study proposes a privacy-preserving Visual SLAM framework for estimating camera poses and performing bundle adjustment with mixed line and point clouds in real time. Previous studies have proposed localization methods to estimate a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Mikiya Shibuya , Shinya Sumikura , Ken Sakurada

Camera display reflections are an issue in bright light situations, as they may prevent users from correctly positioning the subject in the picture. We propose a software solution to this problem, which consists in modifying the image in…

Computer Vision and Pattern Recognition · Computer Science 2018-07-18 Christian Tendyck , Andrew Haddad , Mireille Boutin

Point cloud registration has seen significant advancements with the application of deep learning techniques. However, existing approaches often overlook the potential of integrating radiometric information from RGB images. This limitation…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Zhaoyi Wang , Shengyu Huang , Jemil Avers Butt , Yuanzhou Cai , Matej Varga , Andreas Wieser

LiDAR-based 3D panoptic segmentation often struggles with the inherent sparsity of data from LiDAR sensors, which makes it challenging to accurately recognize distant or small objects. Recently, a few studies have sought to overcome this…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Yining Pan , Qiongjie Cui , Xulei Yang , Na Zhao

Image composition plays an important role in the quality of a photo. However, not every camera user possesses the knowledge and expertise required for capturing well-composed photos. While post-capture cropping can improve the composition…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Yu-Chuan Su , Raviteja Vemulapalli , Ben Weiss , Chun-Te Chu , Philip Andrew Mansfield , Lior Shapira , Colvin Pitts

3D object detection with multi-sensors is essential for an accurate and reliable perception system of autonomous driving and robotics. Existing 3D detectors significantly improve the accuracy by adopting a two-stage paradigm which merely…

Computer Vision and Pattern Recognition · Computer Science 2022-09-23 Xinli Xu , Shaocong Dong , Lihe Ding , Jie Wang , Tingfa Xu , Jianan Li

In recent years, much progress has been made in LiDAR-based 3D object detection mainly due to advances in detector architecture designs and availability of large-scale LiDAR datasets. Existing 3D object detectors tend to perform well on the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Eduardo R. Corral-Soto , Alaap Grandhi , Yannis Y. He , Mrigank Rochan , Bingbing Liu

Most of existing category-level object pose estimation methods devote to learning the object category information from point cloud modality. However, the scale of 3D datasets is limited due to the high cost of 3D data collection and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Xiao Lin , Minghao Zhu , Ronghao Dang , Guangliang Zhou , Shaolong Shu , Feng Lin , Chengju Liu , Qijun Chen

The choice of poses for camera calibration with planar patterns is only rarely considered - yet the calibration precision heavily depends on it. This work presents a pose selection method that finds a compact and robust set of calibration…

Computer Vision and Pattern Recognition · Computer Science 2019-07-15 Pavel Rojtberg , Arjan Kuijper

An accurate and robust large-scale localization system is an integral component for active areas of research such as autonomous vehicles and augmented reality. To this end, many learning algorithms have been proposed that predict 6DOF…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Ali Raza , Lazar Lolic , Shahmir Akhter , Alfonso Dela Cruz , Michael Liut

Pan-tilt-zoom (PTZ) cameras are powerful to support object identification and recognition in far-field scenes. However, the effective use of PTZ cameras in real contexts is complicated by the fact that a continuous on-line camera…

Computer Vision and Pattern Recognition · Computer Science 2015-03-24 Giuseppe Lisanti , Iacopo Masi , Federico Pernici , Alberto Del Bimbo

Visual localization is to estimate the 6-DOF camera pose of a query image in a 3D reference map. We extract keypoints from the reference image and generate a 3D reference map with 3D reconstruction of the keypoints in advance. We emphasize…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Masahiko Tsuji , Hitoshi Niigaki , Ryuichi Tanida

Data augmentation is an effective regularization strategy for mitigating overfitting in deep neural networks, and it plays a crucial role in 3D vision tasks, where the point cloud data is relatively limited. While mixing-based augmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Yi Wang , Jiaze Wang , Jinpeng Li , Zixu Zhao , Guangyong Chen , Anfeng Liu , Pheng-Ann Heng

Continual Learning aims to learn multiple incoming new tasks continually, and to keep the performance of learned tasks at a consistent level. However, existing research on continual learning assumes the pose of the object is pre-defined and…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Xihao Wang , Xian Wei

Time-of-flight cameras provide depth information, which is complementary to the photometric appearance of the scene in ordinary images. It is desirable to merge the depth and colour information, in order to obtain a coherent scene…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Miles Hansard , Georgios Evangelidis , Quentin Pelorson , Radu Horaud

For applications such as autonomous driving, self-localization/camera pose estimation and scene parsing are crucial technologies. In this paper, we propose a unified framework to tackle these two problems simultaneously. The uniqueness of…

Computer Vision and Pattern Recognition · Computer Science 2018-09-26 Peng Wang , Ruigang Yang , Binbin Cao , Wei Xu , Yuanqing Lin

Creating large LiDAR datasets with pixel-level labeling poses significant challenges. While numerous data augmentation methods have been developed to reduce the reliance on manual labeling, these methods predominantly focus on static scenes…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Jiaxing Zhao , Peng Zheng , Rui Ma

Point clouds collected by real-world sensors are always unaligned and sparse, which makes it hard to reconstruct the complete shape of object from a single frame of data. In this work, we manage to provide complete point clouds from sparse…

Computer Vision and Pattern Recognition · Computer Science 2022-02-08 Jieqi Shi , Lingyun Xu , Peiliang Li , Xiaozhi Chen , Shaojie Shen