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The process of segmenting point cloud data into several homogeneous areas with points in the same region having the same attributes is known as 3D segmentation. Segmentation is challenging with point cloud data due to substantial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Siddiqui Muhammad Yasir , Hyunsik Ahn

Real-time semantic image segmentation on platforms subject to size, weight and power (SWaP) constraints is a key area of interest for air surveillance and inspection. In this work, we propose MAVNet: a small, light-weight, deep neural…

The semantic segmentation of point clouds is an important part of the environment perception for robots. However, it is difficult to directly adopt the traditional 3D convolution kernel to extract features from raw 3D point clouds because…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Guangming Wang , Yehui Yang , Huixin Zhang , Zhe Liu , Hesheng Wang

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…

Computer Vision and Pattern Recognition · Computer Science 2018-09-26 Yuan Wang , Tianyue Shi , Peng Yun , Lei Tai , Ming Liu

We propose a novel framework to learn 3D point cloud semantics from 2D multi-view image observations containing pose error. On the one hand, directly learning from the massive, unstructured and unordered 3D point cloud is computationally…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Yuhang He , Lin Chen , Junkun Xie , Long Chen

Point cloud analysis is challenging due to irregularity and unordered data structure. To capture the 3D geometries, prior works mainly rely on exploring sophisticated local geometric extractors using convolution, graph, or attention…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Xu Ma , Can Qin , Haoxuan You , Haoxi Ran , Yun Fu

Point clouds, being the simple and compact representation of surface geometry of 3D objects, have gained increasing popularity with the evolution of deep learning networks for classification and segmentation tasks. Unlike human, teaching…

Computer Vision and Pattern Recognition · Computer Science 2021-01-29 Sindhu Hegde , Shankar Gangisetty

3D Question Answering (3D QA) requires the model to comprehensively understand its situated 3D scene described by the text, then reason about its surrounding environment and answer a question under that situation. However, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Jingzhou Luo , Yang Liu , Weixing Chen , Zhen Li , Yaowei Wang , Guanbin Li , Liang Lin

We present a novel and high-performance 3D object detection framework, named PointVoxel-RCNN (PV-RCNN), for accurate 3D object detection from point clouds. Our proposed method deeply integrates both 3D voxel Convolutional Neural Network…

Computer Vision and Pattern Recognition · Computer Science 2021-04-12 Shaoshuai Shi , Chaoxu Guo , Li Jiang , Zhe Wang , Jianping Shi , Xiaogang Wang , Hongsheng Li

This paper introduces VolMap, a real-time approach for the semantic segmentation of a 3D LiDAR surrounding view system in autonomous vehicles. We designed an optimized deep convolution neural network that can accurately segment the point…

Computer Vision and Pattern Recognition · Computer Science 2019-07-01 Hager Radi , Waleed Ali

In this paper, we propose a point cloud classification method based on graph neural network and manifold learning. Different from the conventional point cloud analysis methods, this paper uses manifold learning algorithms to embed point…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Dinghao Yang , Wei Gao

The promotion of construction robots can solve the problem of human resource shortage and improve the quality of decoration. To help the construction robots obtain environmental information, we need to use 3D point cloud, which is widely…

Robotics · Computer Science 2021-04-13 Xudong Li , Li Feng , Lei Li , Chen Wang

We present Point-Voxel CNN (PVCNN) for efficient, fast 3D deep learning. Previous work processes 3D data using either voxel-based or point-based NN models. However, both approaches are computationally inefficient. The computation cost and…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Zhijian Liu , Haotian Tang , Yujun Lin , Song Han

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…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Chade Li , Pengju Zhang , Jiaming Zhang , Yihong Wu

Scene understanding based on LiDAR point cloud is an essential task for autonomous cars to drive safely, which often employs spherical projection to map 3D point cloud into multi-channel 2D images for semantic segmentation. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Aoran Xiao , Xiaofei Yang , Shijian Lu , Dayan Guan , Jiaxing Huang

Understanding point cloud has recently gained huge interests following the development of 3D scanning devices and the accumulation of large-scale 3D data. Most point cloud processing algorithms can be classified as either point-based or…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Pyunghwan Ahn , Juyoung Yang , Eojindl Yi , Chanho Lee , Junmo Kim

The ability to predict future structure features of environments based on past perception information is extremely needed by autonomous vehicles, which helps to make the following decision-making and path planning more reasonable. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Zhen Luo , Junyi Ma , Zijie Zhou , Guangming Xiong

With the rapid progress of deep convolutional neural networks, in almost all robotic applications, the availability of 3D point clouds improves the accuracy of 3D semantic segmentation methods. Rendering of these irregular, unstructured,…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Mobina Mahdavi , Fahimeh Fooladgar , Shohreh Kasaei

How to learn long-range dependencies from 3D point clouds is a challenging problem in 3D point cloud analysis. Addressing this problem, we propose a global attention network for point cloud semantic segmentation, named as GA-Net, consisting…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Shuang Deng , Qiulei Dong

In this paper, we focus on semantic segmentation method for point clouds of urban scenes. Our fundamental concept revolves around the collaborative utilization of diverse scene representations to benefit from different context information…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Weijie Wei , Martin R. Oswald , Fatemeh Karimi Nejadasl , Theo Gevers