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Deep learning methods have been exerting their strengths in long-term time series forecasting. However, they often struggle to strike a balance between expressive power and computational efficiency. Resorting to multi-layer perceptrons…

机器学习 · 计算机科学 2024-05-21 Nannan Bian , Minhong Zhu , Li Chen , Weiran Cai

Self-supervised representation learning (SSRL) has gained increasing attention in point cloud understanding, in addressing the challenges posed by 3D data scarcity and high annotation costs. This paper presents PCExpert, a novel SSRL…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Jiachen Kang , Wenjing Jia , Xiangjian He , Kin Man Lam

This paper focuses on a novel approach for false-positive reduction (FPR) of nodule candidates in Computer-aided detection (CADe) systems following the suspicious lesions detection stage. Contrary to typical decisions in medical image…

图像与视频处理 · 电气工程与系统科学 2021-06-11 Ivan Drokin , Elena Ericheva

This paper introduces a new method for 3D point cloud registration based on deep learning. The architecture is composed of three distinct blocs: (i) an encoder composed of a convolutional graph-based descriptor that encodes the immediate…

计算机视觉与模式识别 · 计算机科学 2023-10-27 Karim Slimani , Brahim Tamadazte , Catherine Achard

Airborne light detection and ranging (LiDAR) plays an increasingly significant role in urban planning, topographic mapping, environmental monitoring, power line detection and other fields thanks to its capability to quickly acquire…

计算机视觉与模式识别 · 计算机科学 2020-04-21 Congcong Wen , Xiang Li , Xiaojing Yao , Ling Peng , Tianhe Chi

In point cloud analysis, point-based methods have rapidly developed in recent years. These methods have recently focused on concise MLP structures, such as PointNeXt, which have demonstrated competitiveness with Convolutional and…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Xin Deng , WenYu Zhang , Qing Ding , XinMing Zhang

The quality evaluation of three deep learning-based coding solutions for point cloud geometry, notably ADLPCC, PCC GEO CNNv2, and PCGCv2, is presented. The MPEG G-PCC was used as an anchor. Furthermore, LUT SR, which uses multi-resolution…

图像与视频处理 · 电气工程与系统科学 2024-02-09 Joao Prazeres , Rafael Rodrigues , Manuela Pereira , Antonio M. G. Pinheiro

Convolutional neural network (CNN) is a class of artificial neural networks widely used in computer vision tasks. Most CNNs achieve excellent performance by stacking certain types of basic units. In addition to increasing the depth and…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Junyi An , Fengshan Liu , Jian Zhao , Furao Shen

Porting state of the art deep learning algorithms to resource constrained compute platforms (e.g. VR, AR, wearables) is extremely challenging. We propose a fast, compact, and accurate model for convolutional neural networks that enables…

计算机视觉与模式识别 · 计算机科学 2017-06-14 Hessam Bagherinezhad , Mohammad Rastegari , Ali Farhadi

We introduce Multi-Lane Capsule Networks (MLCN), which are a separable and resource efficient organization of Capsule Networks (CapsNet) that allows parallel processing, while achieving high accuracy at reduced cost. A MLCN is composed of a…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Vanderson Martins do Rosario , Edson Borin , Mauricio Breternitz

Understanding the implication of point cloud is still challenging to achieve the goal of classification or segmentation due to the irregular and sparse structure of point cloud. As we have known, PointNet architecture as a ground-breaking…

计算机视觉与模式识别 · 计算机科学 2020-09-29 Xi-An Li , Lei Zhang , Li-Yan Wang , Jian Lu

Point clouds obtained with 3D scanners or by image-based reconstruction techniques are often corrupted with significant amount of noise and outliers. Traditional methods for point cloud denoising largely rely on local surface fitting (e.g.,…

Due to the sparsity and irregularity of the point cloud data, methods that directly consume points have become popular. Among all point-based models, graph convolutional networks (GCN) lead to notable performance by fully preserving the…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Qiangeng Xu , Xudong Sun , Cho-Ying Wu , Panqu Wang , Ulrich Neumann

We introduce the Particle Convolution Network (PCN), a new type of equivariant neural network layer suitable for many tasks in jet physics. The particle convolution layer can be viewed as an extension of Deep Sets and Energy Flow network…

高能物理 - 唯象学 · 物理学 2021-07-08 Chase Shimmin

Point cloud completion is an indispensable task for recovering complete point clouds due to incompleteness caused by occlusion, limited sensor resolution, etc. The family of coarse-to-fine generation architectures has recently exhibited…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Yi Rong , Haoran Zhou , Lixin Yuan , Cheng Mei , Jiahao Wang , Tong Lu

Point cloud based retrieval for place recognition is an emerging problem in vision field. The main challenge is how to find an efficient way to encode the local features into a discriminative global descriptor. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Wenxiao Zhang , Chunxia Xiao

Deep Neural Networks (DNNs) have become the de-facto standard in computer vision, as well as in many other pattern recognition tasks. A key drawback of DNNs is that the training phase can be very computationally expensive. Organizations or…

计算机视觉与模式识别 · 计算机科学 2021-01-08 Debesh Jha , Anis Yazidi , Michael A. Riegler , Dag Johansen , Håvard D. Johansen , Pål Halvorsen

In this work, we propose a simple but effective channel pruning framework called Progressive Channel Pruning (PCP) to accelerate Convolutional Neural Networks (CNNs). In contrast to the existing channel pruning methods that prune channels…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Jinyang Guo , Weichen Zhang , Wanli Ouyang , Dong Xu

In recent years, the challenge of 3D shape analysis within point cloud data has gathered significant attention in computer vision. Addressing the complexities of effective 3D information representation and meaningful feature extraction for…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Md Meraz , Md Afzal Ansari , Mohammed Javed , Pavan Chakraborty

Self-supervised representation learning for point cloud has demonstrated effectiveness in improving pre-trained model performance across diverse tasks. However, as pre-trained models grow in complexity, fully fine-tuning them for downstream…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Song Wang , Xiaolu Liu , Lingdong Kong , Jianyun Xu , Chunyong Hu , Gongfan Fang , Wentong Li , Jianke Zhu , Xinchao Wang