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Feature extraction for tensor data serves as an important step in many tasks such as anomaly detection, process monitoring, image classification, and quality control. Although many methods have been proposed for tensor feature extraction,…

机器学习 · 计算机科学 2021-06-01 Yinan Wang , Weihong "Grace" Guo , Xiaowei Yue

Point cloud analysis is very challenging, as the shape implied in irregular points is difficult to capture. In this paper, we propose RS-CNN, namely, Relation-Shape Convolutional Neural Network, which extends regular grid CNN to irregular…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Yongcheng Liu , Bin Fan , Shiming Xiang , Chunhong Pan

We propose DualConvMesh-Nets (DCM-Net) a family of deep hierarchical convolutional networks over 3D geometric data that combines two types of convolutions. The first type, geodesic convolutions, defines the kernel weights over mesh surfaces…

计算机视觉与模式识别 · 计算机科学 2020-04-03 Jonas Schult , Francis Engelmann , Theodora Kontogianni , Bastian Leibe

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…

计算机视觉与模式识别 · 计算机科学 2018-05-23 Huan Lei , Naveed Akhtar , Ajmal Mian

Self-supervised learning has not been fully explored for point cloud analysis. Current frameworks are mainly based on point cloud reconstruction. Given only 3D coordinates, such approaches tend to learn local geometric structures and…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Mingye Xu , Yali Wang , Zhipeng Zhou , Hongbin Xu , Yu Qiao

Knowledge graphs often suffer from incompleteness issues, which can be alleviated through information completion. However, current state-of-the-art deep knowledge convolutional embedding models rely on external convolution kernels and…

计算与语言 · 计算机科学 2025-06-13 Wenbin Guo , Zhao Li , Xin Wang , Zirui Chen , Jun Zhao , Jianxin Li , Ye Yuan

Kernel methods serve as powerful tools to capture nonlinear patterns behind data in machine learning. The quantum kernel, integrating kernel theory with quantum computing, has attracted widespread attention. However, existing studies…

量子物理 · 物理学 2025-05-23 Jing Li , Yanqi Song , Sujuan Qin , Fei Gao

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

Point clouds provide a flexible geometric representation suitable for countless applications in computer graphics; they also comprise the raw output of most 3D data acquisition devices. While hand-designed features on point clouds have long…

计算机视觉与模式识别 · 计算机科学 2019-06-12 Yue Wang , Yongbin Sun , Ziwei Liu , Sanjay E. Sarma , Michael M. Bronstein , Justin M. Solomon

Conventional vision algorithms adopt a single type of feature or a simple concatenation of multiple features, which is always represented in a high-dimensional space. In this paper, we propose a novel unsupervised spectral embedding…

计算机视觉与模式识别 · 计算机科学 2015-08-05 Mengyang Yu , Li Liu , Ling Shao

Dynamic convolution enhances model capacity by adaptively combining multiple kernels, yet faces critical trade-offs: prior works either (1) incur significant parameter overhead by scaling kernel numbers linearly, (2) compromise inference…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Haiduo Huang , Yadong Zhang , Yinghui Xu , Pengju Ren

We propose a spherical kernel for efficient graph convolution of 3D point clouds. Our metric-based kernels systematically quantize the local 3D space to identify distinctive geometric relationships in the data. Similar to the regular grid…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Huan Lei , Naveed Akhtar , Ajmal Mian

Three-dimensional object recognition has recently achieved great progress thanks to the development of effective point cloud-based learning frameworks, such as PointNet and its extensions. However, existing methods rely heavily on fully…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Weikai Chen , Xiaoguang Han , Guanbin Li , Chao Chen , Jun Xing , Yajie Zhao , Hao Li

Pansharpening refers to the process of integrating a high resolution panchromatic (PAN) image with a lower resolution multispectral (MS) image to generate a fused product, which is pivotal in remote sensing. Despite the effectiveness of…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Tao Tang , Chengxu Yang

This paper proposes a novel point-cloud-based place recognition system that adopts a deep learning approach for feature extraction. By using a convolutional neural network pre-trained on color images to extract features from a range image…

计算机视觉与模式识别 · 计算机科学 2018-10-24 Ting Sun , Ming Liu , Haoyang Ye , Dit-Yan Yeung

In point cloud compression, the quality of a reconstructed point cloud relies on both the global structure and the local context, with existing methods usually processing global and local information sequentially and lacking communication…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Xuan Deng , Xingtao Wang , Xiandong Meng , Xiaopeng Fan , Debin Zhao

Conventional neural architectures for sequential data present important limitations. Recurrent networks suffer from exploding and vanishing gradients, small effective memory horizons, and must be trained sequentially. Convolutional networks…

机器学习 · 计算机科学 2022-03-18 David W. Romero , Anna Kuzina , Erik J. Bekkers , Jakub M. Tomczak , Mark Hoogendoorn

This paper presents a novel network compression framework Kernel Quantization (KQ), targeting to efficiently convert any pre-trained full-precision convolutional neural network (CNN) model into a low-precision version without significant…

机器学习 · 计算机科学 2020-03-12 Zhongzhi Yu , Yemin Shi , Tiejun Huang , Yizhou Yu

A novel energy-efficient edge computing paradigm is proposed for real-time deep learning-based image upsampling applications. State-of-the-art deep learning solutions for image upsampling are currently trained using either resize or…

计算机视觉与模式识别 · 计算机科学 2021-07-27 Ian Colbert , Ken Kreutz-Delgado , Srinjoy Das

We present a new convolution layer for deep learning architectures which we call QuadConv -- an approximation to continuous convolution via quadrature. Our operator is developed explicitly for use on non-uniform, mesh-based data, and…

机器学习 · 计算机科学 2024-07-08 Kevin Doherty , Cooper Simpson , Stephen Becker , Alireza Doostan