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Deep learning and convolutional neural networks (CNNs) have made progress in polarimetric synthetic aperture radar (PolSAR) image classification over the past few years. However, a crucial issue has not been addressed, i.e., the requirement…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Lamei Zhang , Siyu Zhang , Bin Zou , Hongwei Dong

Learning structures of 3D shapes is a fundamental problem in the field of computer graphics and geometry processing. We present a simple yet interpretable unsupervised method for learning a new structural representation in the form of 3D…

计算机视觉与模式识别 · 计算机科学 2020-03-27 Nenglun Chen , Lingjie Liu , Zhiming Cui , Runnan Chen , Duygu Ceylan , Changhe Tu , Wenping Wang

Deep neural networks (DNNs) play a crucial role in the field of machine learning, demonstrating state-of-the-art performance across various application domains. However, despite their success, DNN-based models may occasionally exhibit…

机器学习 · 计算机科学 2024-07-02 Guy Amir , Osher Maayan , Tom Zelazny , Guy Katz , Michael Schapira

Global registration of point clouds aims to find an optimal alignment of a sequence of 2D or 3D point sets. In this paper, we present a novel method that takes advantage of current deep learning techniques for unsupervised learning of…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Lingjing Wang , Yi Shi , Xiang Li , Yi Fang

Despite significant progress in image-based 3D scene flow estimation, the performance of such approaches has not yet reached the fidelity required by many applications. Simultaneously, these applications are often not restricted to…

计算机视觉与模式识别 · 计算机科学 2019-01-08 Aseem Behl , Despoina Paschalidou , Simon Donné , Andreas Geiger

Deep neural networks (DNNs) have succeeded in many different perception tasks, e.g., computer vision, natural language processing, reinforcement learning, etc. The high-performed DNNs heavily rely on intensive resource consumption. For…

机器学习 · 计算机科学 2022-10-10 Zhongnan Qu

Point cloud is a principal data structure adopted for 3D geometric information encoding. Unlike other conventional visual data, such as images and videos, these irregular points describe the complex shape features of 3D objects, which makes…

计算机视觉与模式识别 · 计算机科学 2020-04-21 Chaoyi Zhang , Yang Song , Lina Yao , Weidong Cai

In this article we describe a new convolutional neural network (CNN) to classify 3D point clouds of urban or indoor scenes. Solutions are given to the problems encountered working on scene point clouds, and a network is described that…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Xavier Roynard , Jean-Emmanuel Deschaud , François Goulette

Self-supervised learning can extract representations of good quality from solely unlabeled data, which is appealing for point cloud videos due to their high labelling cost. In this paper, we propose a contrastive mask prediction (PointCMP)…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Zhiqiang Shen , Xiaoxiao Sheng , Longguang Wang , Yulan Guo , Qiong Liu , Xi Zhou

PointNet has recently emerged as a popular representation for unstructured point cloud data, allowing application of deep learning to tasks such as object detection, segmentation and shape completion. However, recent works in literature…

计算机视觉与模式识别 · 计算机科学 2019-11-05 Vinit Sarode , Xueqian Li , Hunter Goforth , Yasuhiro Aoki , Rangaprasad Arun Srivatsan , Simon Lucey , Howie Choset

Deep neural network (DNN) partition is a research problem that involves splitting a DNN into multiple parts and offloading them to specific locations. Because of the recent advancement in multi-access edge computing and edge intelligence,…

分布式、并行与集群计算 · 计算机科学 2023-04-21 Di Xu , Xiang He , Tonghua Su , Zhongjie Wang

We present a new self-supervised paradigm on point cloud sequence understanding. Inspired by the discriminative and generative self-supervised methods, we design two tasks, namely point cloud sequence based Contrastive Prediction and…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Xiaoxiao Sheng , Zhiqiang Shen , Gang Xiao

This paper introduces a novel network architecture for the classification of large-scale point clouds. The network is used to classify metadata from cuneiform tablets. As more than half a million tablets remain unprocessed, this can help…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Frederik Hagelskjaer

In computer-aided design (CAD) community, the point cloud data is pervasively applied in reverse engineering, where the point cloud analysis plays an important role. While a large number of supervised learning methods have been proposed to…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Cheng Zhang , Jian Shi , Xuan Deng , Zizhao Wu

Point cloud analysis is attracting attention from Artificial Intelligence research since it can be widely used in applications such as robotics, Augmented Reality, self-driving. However, it is always challenging due to irregularities,…

计算机视觉与模式识别 · 计算机科学 2020-11-18 Shi Qiu , Saeed Anwar , Nick Barnes

Deep neural networks (DNN) are the state of the art on many engineering problems such as computer vision and audition. A key factor in the success of the DNN is scalability - bigger networks work better. However, the reason for this…

机器学习 · 计算机科学 2015-02-13 Andrew J. R. Simpson

In this paper, we introduce a Point Recurrent Neural Network (PointRNN) for moving point cloud processing. At each time step, PointRNN takes point coordinates $\boldsymbol{P} \in \mathbb{R}^{n \times 3}$ and point features $\boldsymbol{X}…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Hehe Fan , Yi Yang

While machine learning and artificial intelligence have long been applied in networking research, the bulk of such works has focused on supervised learning. Recently there has been a rising trend of employing unsupervised machine learning…

网络与互联网体系结构 · 计算机科学 2017-09-21 Muhammad Usama , Junaid Qadir , Aunn Raza , Hunain Arif , Kok-Lim Alvin Yau , Yehia Elkhatib , Amir Hussain , Ala Al-Fuqaha

This paper describes a neural network layer, named Ursa, that uses a constellation of points to learn classification information from point cloud data. Unlike other machine learning classification problems where the task is to classify an…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Mark B. Skouson , Brett J. Borghetti , Robert C. Leishman

While deep neural networks (DNN) have become an effective computational tool, the prediction results are often criticized by the lack of interpretability, which is essential in many real-world applications such as health informatics.…

计算机视觉与模式识别 · 计算机科学 2018-05-29 Mengnan Du , Ninghao Liu , Qingquan Song , Xia Hu