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In the domain of point cloud analysis, despite the significant capabilities of Graph Neural Networks (GNNs) in managing complex 3D datasets, existing approaches encounter challenges like high computational costs and scalability issues with…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Qiang Zheng , Yafei Qi , Chen Wang , Chao Zhang , Jian Sun

Semantic segmentation of point clouds in autonomous driving datasets requires techniques that can process large numbers of points efficiently. Sparse 3D convolutions have become the de-facto tools to construct deep neural networks for this…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Gilles Puy , Alexandre Boulch , Renaud Marlet

3D instance segmentation for laser scanning (LiDAR) point clouds remains a challenge in many remote sensing-related domains. Successful solutions typically rely on supervised deep learning and manual annotations, and consequently focus on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Tomislav Medic , Liangliang Nan

Point clouds are an efficient data format for 3D data. However, existing 3D segmentation methods for point clouds either do not model local dependencies \cite{pointnet} or require added computations \cite{kd-net,pointnet2}. This work…

Computer Vision and Pattern Recognition · Computer Science 2018-04-02 Qiangui Huang , Weiyue Wang , Ulrich Neumann

Existing state-of-the-art 3D point clouds understanding methods only perform well in a fully supervised manner. To the best of our knowledge, there exists no unified framework which simultaneously solves the downstream high-level…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Kangcheng Liu

We propose a neural network for 3D point cloud processing that exploits `spherical' convolution kernels and octree partitioning of space. The proposed metric-based spherical kernels systematically quantize point neighborhoods to identify…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Huan Lei , Naveed Akhtar , Ajmal Mian

This paper introduces a novel contour-based approach named deep snake for real-time instance segmentation. Unlike some recent methods that directly regress the coordinates of the object boundary points from an image, deep snake uses a…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Sida Peng , Wen Jiang , Huaijin Pi , Xiuli Li , Hujun Bao , Xiaowei Zhou

In this paper, we propose a method to segment regions in three-dimensional point clouds. We assume that (i) the shape and the number of regions in the point cloud are not known and (ii) the point cloud may be noisy. The method consists of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-02 Matthias Sonntag , Veniamin I. Morgenshtern

Retrieval in 3D point clouds is a challenging task that consists in retrieving the most similar point clouds to a given query within a reference of 3D points. Current methods focus on comparing descriptors of point clouds in order to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Chahine-Nicolas Zede , Laurent Carrafa , Valérie Gouet-Brunet

In this work, we propose a novel two-stage framework for the efficient 3D point cloud object detection. Instead of transforming point clouds into 2D bird eye view projections, we parse the raw point cloud data directly in the 3D space yet…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Zhaoyu Su , Pin Siang Tan , Yu-Hsing Wang

We propose a Point-Voxel DeConvolution (PVDeConv) module for 3D data autoencoder. To demonstrate its efficiency we learn to synthesize high-resolution point clouds of 10k points that densely describe the underlying geometry of Computer…

Computer Vision and Pattern Recognition · Computer Science 2021-01-13 Kseniya Cherenkova , Djamila Aouada , Gleb Gusev

Dynamic convolution achieves better performance for efficient CNNs at the cost of negligible FLOPs increase. However, the performance increase can not match the significantly expanded number of parameters, which is the main bottleneck in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Shwai He , Chenbo Jiang , Daize Dong , Liang Ding

Three-dimensional (3D) object recognition is crucial for intelligent autonomous agents such as autonomous vehicles and robots alike to operate effectively in unstructured environments. Most state-of-art approaches rely on relatively dense…

Robotics · Computer Science 2022-05-10 Prajval Kumar Murali , Cong Wang , Ravinder Dahiya , Mohsen Kaboli

Convolutional layers are one of the basic building blocks of modern deep neural networks. One fundamental assumption is that convolutional kernels should be shared for all examples in a dataset. We propose conditionally parameterized…

Computer Vision and Pattern Recognition · Computer Science 2020-09-07 Brandon Yang , Gabriel Bender , Quoc V. Le , Jiquan Ngiam

Instance segmentation on 3D point clouds (3DIS) is a longstanding challenge in computer vision, where state-of-the-art methods are mainly based on full supervision. As annotating ground truth dense instance masks is tedious and expensive,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Tuan Duc Ngo , Binh-Son Hua , Khoi Nguyen

Current advances in deep learning is leading to human-level accuracy in computer vision tasks such as object classification, localization, semantic segmentation, and instance segmentation. In this paper, we describe a new deep convolutional…

Computer Vision and Pattern Recognition · Computer Science 2020-10-07 N. Lakmal Deshapriya , Matthew N. Dailey , Manzul Kumar Hazarika , Hiroyuki Miyazaki

3D object detection is vital for many robotics applications. For tasks where a 2D perspective range image exists, we propose to learn a 3D representation directly from this range image view. To this end, we designed a 2D convolutional…

Computer Vision and Pattern Recognition · Computer Science 2021-06-28 Yuning Chai , Pei Sun , Jiquan Ngiam , Weiyue Wang , Benjamin Caine , Vijay Vasudevan , Xiao Zhang , Dragomir Anguelov

In contrast to fully supervised methods using pixel-wise mask labels, box-supervised instance segmentation takes advantage of simple box annotations, which has recently attracted increasing research attention. This paper presents a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Wentong Li , Wenyu Liu , Jianke Zhu , Miaomiao Cui , Risheng Yu , Xiansheng Hua , Lei Zhang

Compressing a set of unordered points is far more challenging than compressing images/videos of regular sample grids, because of the difficulties in characterizing neighboring relations in an irregular layout of points. Many researchers…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Hao Xu , Xi Zhang , Xiaolin Wu

Recently most popular tracking frameworks focus on 2D image sequences. They seldom track the 3D object in point clouds. In this paper, we propose PointIT, a fast, simple tracking method based on 3D on-road instance segmentation. Firstly, we…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Yuan Wang , Yang Yu , Ming Liu
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